Routing Table Report 04:00 +10GMT Mon 01 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148962
Prefixes after maximum aggregation: 88339
Unique aggregates announced to Internet: 71594
Total ASes present in the Internet Routing Table: 18325
Origin-only ASes present in the Internet Routing Table: 15913
Origin ASes announcing only one prefix: 7459
Transit ASes present in the Internet Routing Table: 2412
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346241928
Equivalent to 80 /8s, 62 /16s and 5 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68620
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28886
Total APNIC prefixes after maximum aggregation: 14359
Prefixes being announced from the APNIC address blocks: 27041
Unique aggregates announced from the APNIC address blocks: 14267
APNIC Region origin ASes present in the Internet Routing Table: 2161
APNIC Region origin ASes announcing only one prefix: 653
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 165522304
Equivalent to 9 /8s, 221 /16s and 171 /24s
Percentage of available APNIC address space announced: 75.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84486
Total ARIN prefixes after maximum aggregation: 51530
Prefixes being announced from the ARIN address blocks: 64683
Unique aggregates announced from the ARIN address blocks: 23294
ARIN Region origin ASes present in the Internet Routing Table: 9635
ARIN Region origin ASes announcing only one prefix: 3468
ARIN Region transit ASes present in the Internet Routing Table: 931
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 234317824
Equivalent to 13 /8s, 247 /16s and 104 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27836
Total RIPE prefixes after maximum aggregation: 19404
Prefixes being announced from the RIPE address blocks: 24709
Unique aggregates announced from the RIPE address blocks: 16212
RIPE Region origin ASes present in the Internet Routing Table: 5961
RIPE Region origin ASes announcing only one prefix: 3204
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 174880640
Equivalent to 10 /8s, 108 /16s and 119 /24s
Percentage of available RIPE address space announced: 61.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6516
Total LACNIC prefixes after maximum aggregation: 2351
Prefixes being announced from the LACNIC address blocks: 6372
Unique aggregates announced from the LACNIC address blocks: 3861
LACNIC Region origin ASes present in the Internet Routing Table: 397
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16380672
Equivalent to 0 /8s, 249 /16s and 243 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1233
Total AfriNIC prefixes after maximum aggregation: 695
Prefixes being announced from the AfriNIC address blocks: 861
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
9583 544 41 105 Satyam Infoway Ltd.,
4766 542 3407 266 Korea Internet Exchange for "
4755 369 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 321 23 160 Pakistan Telecom
703 318 346 246 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 262 268 195 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 233 82 50 BHARTI BT INTERNET LTD.
9800 231 380 71 CHINA UNICOM
7563 225 48 162 Korea Internet Infrastructure
10036 209 19 190 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1433 6698 996 AT&T WorldNet Services
701 1237 8415 888 UUNET Technologies, Inc.
1239 928 2882 617 Sprint
2386 844 530 607 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 653 216 Time Warner Telecom
18566 750 208 6 Covad Communications
721 650 13035 350 DLA Systems Automation Center
209 642 3451 505 Qwest
3356 640 10955 443 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 451 8288 378 SBC Internet Services
705 435 163 275 UUNET Technologies, Inc.
6198 435 377 201 BellSouth Network Solutions,
6478 421 730 95 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 633 2011 523 UUNET - Commercial IP service
3320 297 2485 234 Deutsche Telekom AG
8220 280 461 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 345 138 68 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 182 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 24 Telecom Argentina Stet-France
6503 121 164 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 84 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 82 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 93 259 65 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21280 13 2 3 Swift Global Kenya Ltd.Is an
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 750 744 Covad Communications
4134 856 693 Data Communications Bureau
4323 795 579 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 544 439 Satyam Infoway Ltd.,
7843 497 399 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 407 389 Century Telephone
22773 397 380 Cox Communications, Inc. Atla
6467 405 373 E.Spire Communications, Inc.
22909 408 351 Comcast Cable Corporation
701 1237 349 UUNET Technologies, Inc.
6478 421 326 AT&T Worldnet Services
4755 369 316 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 928 311 Sprint
9929 344 311 China Netcom Corp.
721 650 300 DLA Systems Automation Center
4355 392 293 EarthLink, Inc.
6140 345 277 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.14.164.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.23.168.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.34.165.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.38.226.0/24 3741 The Internet Solutio
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 568 DISO-UNRRA
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:555 /16:8100 /17:2271 /18:3900
/19:9757 /20:10379 /21:7927 /22:10982 /23:12660 /24:81145
/25:232 /26:220 /27:116 /28:28 /29:28 /30:78
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 735 750 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 577 1433 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
702 386 633 UUNET - Commercial IP service
9583 381 544 Satyam Infoway Ltd.,
1239 370 928 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 342 1237 UUNET Technologies, Inc.
6198 316 435 BellSouth Network Solutions,
6467 303 405 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 256 795 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:746 32:67 33:2 38:81
40:55 44:3 47:2 52:3 55:1 56:3
57:20 60:3 61:606 62:496 63:1833 64:2450
65:2080 66:2449 67:442 68:536 69:755 70:33
72:2 80:503 81:543 82:303 83:193 84:41
128:119 129:164 130:82 131:184 132:33 134:184
135:19 136:187 137:65 138:180 139:38 140:187
141:108 142:123 143:64 144:159 145:42 146:294
147:94 148:313 149:109 150:94 151:65 152:140
153:68 154:2 155:130 156:58 157:67 158:131
159:163 160:61 161:71 162:377 163:78 164:214
165:158 166:119 167:221 168:342 169:121 170:300
171:9 192:5563 193:2913 194:2164 195:1503 196:591
198:3680 199:3288 200:3825 201:23 202:4901 203:5743
204:3464 205:2091 206:2252 207:2556 208:2126 209:3020
210:1499 211:635 212:1136 213:1217 214:129 215:30
216:3684 217:1046 218:175 219:80 220:271 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Sun 31 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149160
Prefixes after maximum aggregation: 88320
Unique aggregates announced to Internet: 71636
Total ASes present in the Internet Routing Table: 18332
Origin-only ASes present in the Internet Routing Table: 15921
Origin ASes announcing only one prefix: 7457
Transit ASes present in the Internet Routing Table: 2411
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346603880
Equivalent to 80 /8s, 67 /16s and 139 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68768
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28992
Total APNIC prefixes after maximum aggregation: 14391
Prefixes being announced from the APNIC address blocks: 27111
Unique aggregates announced from the APNIC address blocks: 14279
APNIC Region origin ASes present in the Internet Routing Table: 2161
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 165532800
Equivalent to 9 /8s, 221 /16s and 212 /24s
Percentage of available APNIC address space announced: 75.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84554
Total ARIN prefixes after maximum aggregation: 51478
Prefixes being announced from the ARIN address blocks: 64717
Unique aggregates announced from the ARIN address blocks: 23300
ARIN Region origin ASes present in the Internet Routing Table: 9637
ARIN Region origin ASes announcing only one prefix: 3465
ARIN Region transit ASes present in the Internet Routing Table: 931
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 234286336
Equivalent to 13 /8s, 246 /16s and 237 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27839
Total RIPE prefixes after maximum aggregation: 19402
Prefixes being announced from the RIPE address blocks: 24708
Unique aggregates announced from the RIPE address blocks: 16205
RIPE Region origin ASes present in the Internet Routing Table: 5965
RIPE Region origin ASes announcing only one prefix: 3208
RIPE Region transit ASes present in the Internet Routing Table: 1020
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174870912
Equivalent to 10 /8s, 108 /16s and 81 /24s
Percentage of available RIPE address space announced: 61.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6535
Total LACNIC prefixes after maximum aggregation: 2353
Prefixes being announced from the LACNIC address blocks: 6387
Unique aggregates announced from the LACNIC address blocks: 3859
LACNIC Region origin ASes present in the Internet Routing Table: 398
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16380160
Equivalent to 0 /8s, 249 /16s and 241 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1235
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 861
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 806 1183 580 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 539 41 105 Satyam Infoway Ltd.,
4755 369 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 321 23 160 Pakistan Telecom
703 319 346 246 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 263 268 196 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 231 82 50 BHARTI BT INTERNET LTD.
9800 231 380 71 CHINA UNICOM
7563 225 48 162 Korea Internet Infrastructure
10036 209 19 190 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6697 993 AT&T WorldNet Services
701 1243 8417 892 UUNET Technologies, Inc.
1239 926 2881 616 Sprint
2386 844 530 607 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 653 216 Time Warner Telecom
18566 750 208 6 Covad Communications
721 713 21016 297 DLA Systems Automation Center
209 640 3451 505 Qwest
3356 640 10955 444 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 450 8288 377 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 435 377 201 BellSouth Network Solutions,
6478 421 730 95 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2011 524 UUNET - Commercial IP service
3320 297 2485 234 Deutsche Telekom AG
8220 280 461 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 138 68 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 182 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 24 Telecom Argentina Stet-France
6503 122 164 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 84 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 93 259 65 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 750 744 Covad Communications
4134 856 693 Data Communications Bureau
4323 795 579 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 713 416 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 407 389 Century Telephone
22773 400 382 Cox Communications, Inc. Atla
6467 404 372 E.Spire Communications, Inc.
701 1243 351 UUNET Technologies, Inc.
22909 408 351 Comcast Cable Corporation
6478 421 326 AT&T Worldnet Services
4755 369 316 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
9929 344 311 China Netcom Corp.
1239 926 310 Sprint
4355 392 293 EarthLink, Inc.
4766 542 276 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.14.164.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.23.168.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.34.165.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.38.226.0/24 3741 The Internet Solutio
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:555 /16:8105 /17:2273 /18:3898
/19:9759 /20:10383 /21:7935 /22:10971 /23:12667 /24:81212
/25:238 /26:224 /27:122 /28:65 /29:53 /30:112
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 735 750 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 575 1430 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
702 387 634 UUNET - Commercial IP service
9583 376 539 Satyam Infoway Ltd.,
1239 370 926 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 348 1243 UUNET Technologies, Inc.
6198 316 435 BellSouth Network Solutions,
6467 302 404 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 256 795 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:746 32:67 33:2 38:81
40:55 44:3 47:2 52:3 55:1 56:3
57:20 60:3 61:604 62:497 63:1836 64:2449
65:2081 66:2451 67:444 68:536 69:755 70:33
72:2 80:504 81:543 82:304 83:193 84:41
128:118 129:164 130:83 131:185 132:34 134:184
135:19 136:187 137:56 138:183 139:38 140:187
141:108 142:123 143:69 144:159 145:42 146:294
147:94 148:327 149:109 150:94 151:65 152:140
153:68 154:2 155:128 156:58 157:66 158:131
159:163 160:61 161:71 162:377 163:78 164:215
165:158 166:119 167:219 168:342 169:121 170:295
171:9 192:5563 193:2916 194:2166 195:1504 196:591
198:3678 199:3286 200:3833 201:23 202:4932 203:5754
204:3469 205:2094 206:2251 207:2553 208:2130 209:3023
210:1498 211:635 212:1133 213:1213 214:129 215:30
216:3681 217:1047 218:175 219:80 220:271 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Sat 30 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149062
Prefixes after maximum aggregation: 88324
Unique aggregates announced to Internet: 71592
Total ASes present in the Internet Routing Table: 18337
Origin-only ASes present in the Internet Routing Table: 15924
Origin ASes announcing only one prefix: 7462
Transit ASes present in the Internet Routing Table: 2413
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346803852
Equivalent to 80 /8s, 70 /16s and 152 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68679
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28920
Total APNIC prefixes after maximum aggregation: 14374
Prefixes being announced from the APNIC address blocks: 27079
Unique aggregates announced from the APNIC address blocks: 14281
APNIC Region origin ASes present in the Internet Routing Table: 2160
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 165552000
Equivalent to 9 /8s, 222 /16s and 31 /24s
Percentage of available APNIC address space announced: 75.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84508
Total ARIN prefixes after maximum aggregation: 51481
Prefixes being announced from the ARIN address blocks: 64697
Unique aggregates announced from the ARIN address blocks: 23297
ARIN Region origin ASes present in the Internet Routing Table: 9639
ARIN Region origin ASes announcing only one prefix: 3468
ARIN Region transit ASes present in the Internet Routing Table: 932
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234310400
Equivalent to 13 /8s, 247 /16s and 75 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27855
Total RIPE prefixes after maximum aggregation: 19406
Prefixes being announced from the RIPE address blocks: 24718
Unique aggregates announced from the RIPE address blocks: 16206
RIPE Region origin ASes present in the Internet Routing Table: 5967
RIPE Region origin ASes announcing only one prefix: 3209
RIPE Region transit ASes present in the Internet Routing Table: 1020
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 174892160
Equivalent to 10 /8s, 108 /16s and 164 /24s
Percentage of available RIPE address space announced: 61.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6541
Total LACNIC prefixes after maximum aggregation: 2360
Prefixes being announced from the LACNIC address blocks: 6360
Unique aggregates announced from the LACNIC address blocks: 3827
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16371968
Equivalent to 0 /8s, 249 /16s and 209 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1233
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 863
Unique aggregates announced from the AfriNIC address blocks: 672
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 804 1183 578 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 539 41 105 Satyam Infoway Ltd.,
4755 369 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 320 23 160 Pakistan Telecom
703 316 346 244 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 263 268 196 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 231 82 50 BHARTI BT INTERNET LTD.
9800 231 380 71 CHINA UNICOM
7563 225 48 162 Korea Internet Infrastructure
10036 209 19 190 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1433 6698 996 AT&T WorldNet Services
701 1211 8415 891 UUNET Technologies, Inc.
1239 928 2882 617 Sprint
2386 845 530 608 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 653 216 Time Warner Telecom
18566 750 208 6 Covad Communications
721 718 21015 296 DLA Systems Automation Center
209 644 3452 506 Qwest
3356 640 10955 445 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 449 8288 376 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 435 377 201 BellSouth Network Solutions,
6478 420 730 95 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 633 2011 523 UUNET - Commercial IP service
3320 296 2485 233 Deutsche Telekom AG
8220 280 461 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 139 69 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 182 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 86 7 20 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
2905 114 276 83 The Internetworking Company o
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
20928 52 16 1 Noor Advanced Technologies AS
9129 33 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 750 744 Covad Communications
4134 856 693 Data Communications Bureau
4323 795 579 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 718 422 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 407 389 Century Telephone
22773 400 382 Cox Communications, Inc. Atla
6467 403 372 E.Spire Communications, Inc.
22909 408 351 Comcast Cable Corporation
6478 420 325 AT&T Worldnet Services
701 1211 320 UUNET Technologies, Inc.
4755 369 316 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 928 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
6140 346 277 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.14.164.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.23.168.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.34.165.0/24 3741 The Internet Solutio
26422 UNALLOCATED 196.38.226.0/24 3741 The Internet Solutio
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:555 /16:8107 /17:2273 /18:3902
/19:9762 /20:10381 /21:7938 /22:10967 /23:12668 /24:81178
/25:238 /26:225 /27:119 /28:52 /29:32 /30:82
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 735 750 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 612 845 AT&T Data Communications Serv
7018 576 1433 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
702 386 633 UUNET - Commercial IP service
9583 376 539 Satyam Infoway Ltd.,
1239 369 928 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 348 1211 UUNET Technologies, Inc.
6198 316 435 BellSouth Network Solutions,
6467 302 403 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 256 795 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1436 13:1 15:5 16:2
17:3 20:5 24:746 32:67 33:2 38:80
40:55 44:3 47:2 52:3 55:1 56:3
57:20 60:3 61:603 62:497 63:1836 64:2450
65:2077 66:2461 67:442 68:537 69:748 70:33
72:2 80:504 81:543 82:304 83:193 84:49
128:124 129:165 130:82 131:184 132:34 134:185
135:19 136:187 137:56 138:182 139:38 140:185
141:108 142:123 143:69 144:159 145:42 146:294
147:94 148:328 149:110 150:94 151:65 152:140
153:68 154:2 155:126 156:58 157:67 158:131
159:163 160:61 161:71 162:377 163:79 164:215
165:158 166:119 167:221 168:342 169:121 170:294
171:9 192:5561 193:2917 194:2165 195:1506 196:593
198:3678 199:3292 200:3805 201:23 202:4923 203:5756
204:3467 205:2085 206:2251 207:2553 208:2133 209:3007
210:1499 211:635 212:1133 213:1213 214:129 215:30
216:3685 217:1047 218:175 219:79 220:271 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Fri 29 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149071
Prefixes after maximum aggregation: 88338
Unique aggregates announced to Internet: 71566
Total ASes present in the Internet Routing Table: 18317
Origin-only ASes present in the Internet Routing Table: 15918
Origin ASes announcing only one prefix: 7450
Transit ASes present in the Internet Routing Table: 2399
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346652264
Equivalent to 80 /8s, 68 /16s and 72 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28949
Total APNIC prefixes after maximum aggregation: 14394
Prefixes being announced from the APNIC address blocks: 27063
Unique aggregates announced from the APNIC address blocks: 14266
APNIC Region origin ASes present in the Internet Routing Table: 2157
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165352576
Equivalent to 9 /8s, 219 /16s and 20 /24s
Percentage of available APNIC address space announced: 75.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84566
Total ARIN prefixes after maximum aggregation: 51519
Prefixes being announced from the ARIN address blocks: 64689
Unique aggregates announced from the ARIN address blocks: 23249
ARIN Region origin ASes present in the Internet Routing Table: 9643
ARIN Region origin ASes announcing only one prefix: 3465
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234359552
Equivalent to 13 /8s, 248 /16s and 11 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27767
Total RIPE prefixes after maximum aggregation: 19360
Prefixes being announced from the RIPE address blocks: 24636
Unique aggregates announced from the RIPE address blocks: 16166
RIPE Region origin ASes present in the Internet Routing Table: 5949
RIPE Region origin ASes announcing only one prefix: 3201
RIPE Region transit ASes present in the Internet Routing Table: 1016
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174741888
Equivalent to 10 /8s, 106 /16s and 89 /24s
Percentage of available RIPE address space announced: 61.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6549
Total LACNIC prefixes after maximum aggregation: 2361
Prefixes being announced from the LACNIC address blocks: 6402
Unique aggregates announced from the LACNIC address blocks: 3861
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16376320
Equivalent to 0 /8s, 249 /16s and 226 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1235
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 874
Unique aggregates announced from the AfriNIC address blocks: 683
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 806 1184 579 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 539 41 105 Satyam Infoway Ltd.,
17676 369 5516 54 XTAGE CORPORATION
4755 367 133 53 Videsh Sanchar Nigam Ltd. Aut
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 320 23 158 Pakistan Telecom
703 316 346 244 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 264 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 231 82 50 BHARTI BT INTERNET LTD.
9800 228 380 68 CHINA UNICOM
7563 220 48 162 Korea Internet Infrastructure
10036 209 19 190 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1432 6697 998 AT&T WorldNet Services
701 1243 8433 892 UUNET Technologies, Inc.
1239 929 2882 618 Sprint
2386 844 530 608 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 790 637 213 Time Warner Telecom
18566 749 208 6 Covad Communications
721 719 21016 297 DLA Systems Automation Center
209 646 3458 508 Qwest
3356 639 10955 445 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 496 708 103 Adelphia Corp.
7132 448 8287 375 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 434 376 200 BellSouth Network Solutions,
6478 419 730 94 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2010 510 UUNET - Commercial IP service
3320 297 2485 234 Deutsche Telekom AG
8220 280 461 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 345 139 69 ImpSat
8151 304 453 132 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 165 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 133 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 86 7 20 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
2905 114 276 83 The Internetworking Company o
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
20928 52 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 749 743 Covad Communications
4134 856 693 Data Communications Bureau
4323 790 577 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 719 422 DLA Systems Automation Center
27364 413 394 Armstrong Cable Services
7843 496 393 Adelphia Corp.
5668 407 389 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 401 370 E.Spire Communications, Inc.
701 1243 351 UUNET Technologies, Inc.
22909 408 351 Comcast Cable Corporation
6478 419 325 AT&T Worldnet Services
17676 369 315 XTAGE CORPORATION
4755 367 314 Videsh Sanchar Nigam Ltd. Aut
1239 929 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 542 276 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:555 /16:8108 /17:2272 /18:3897
/19:9748 /20:10392 /21:7925 /22:10963 /23:12668 /24:81150
/25:237 /26:222 /27:120 /28:66 /29:53 /30:110
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 576 1432 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
1239 376 929 Sprint
9583 376 539 Satyam Infoway Ltd.,
702 372 619 UUNET - Commercial IP service
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 346 1243 UUNET Technologies, Inc.
6198 316 434 BellSouth Network Solutions,
6467 299 401 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 790 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:746 32:67 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:21 60:2 61:601 62:499 63:1840 64:2448
65:2076 66:2461 67:444 68:537 69:754 70:33
72:1 80:505 81:541 82:295 83:188 84:49
128:129 129:165 130:83 131:185 132:34 134:186
135:19 136:187 137:56 138:184 139:38 140:195
141:108 142:123 143:69 144:159 145:42 146:294
147:94 148:328 149:109 150:94 151:65 152:143
153:68 154:2 155:128 156:58 157:67 158:131
159:163 160:61 161:70 162:363 163:80 164:215
165:158 166:121 167:221 168:340 169:121 170:294
171:9 192:5563 193:2917 194:2161 195:1499 196:609
198:3683 199:3292 200:3844 201:23 202:4904 203:5734
204:3462 205:2083 206:2251 207:2554 208:2134 209:3004
210:1499 211:637 212:1132 213:1199 214:129 215:30
216:3679 217:1036 218:175 219:79 220:271 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Thu 28 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149267
Prefixes after maximum aggregation: 88324
Unique aggregates announced to Internet: 71578
Total ASes present in the Internet Routing Table: 18319
Origin-only ASes present in the Internet Routing Table: 15915
Origin ASes announcing only one prefix: 7454
Transit ASes present in the Internet Routing Table: 2404
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1347021416
Equivalent to 80 /8s, 73 /16s and 234 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68847
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29062
Total APNIC prefixes after maximum aggregation: 14373
Prefixes being announced from the APNIC address blocks: 27189
Unique aggregates announced from the APNIC address blocks: 14275
APNIC Region origin ASes present in the Internet Routing Table: 2155
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165327744
Equivalent to 9 /8s, 218 /16s and 179 /24s
Percentage of available APNIC address space announced: 75.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84586
Total ARIN prefixes after maximum aggregation: 51500
Prefixes being announced from the ARIN address blocks: 64688
Unique aggregates announced from the ARIN address blocks: 23236
ARIN Region origin ASes present in the Internet Routing Table: 9638
ARIN Region origin ASes announcing only one prefix: 3465
ARIN Region transit ASes present in the Internet Routing Table: 935
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234327040
Equivalent to 13 /8s, 247 /16s and 140 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27840
Total RIPE prefixes after maximum aggregation: 19384
Prefixes being announced from the RIPE address blocks: 24702
Unique aggregates announced from the RIPE address blocks: 16194
RIPE Region origin ASes present in the Internet Routing Table: 5958
RIPE Region origin ASes announcing only one prefix: 3207
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 175071616
Equivalent to 10 /8s, 111 /16s and 97 /24s
Percentage of available RIPE address space announced: 61.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6539
Total LACNIC prefixes after maximum aggregation: 2366
Prefixes being announced from the LACNIC address blocks: 6393
Unique aggregates announced from the LACNIC address blocks: 3846
LACNIC Region origin ASes present in the Internet Routing Table: 400
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16362240
Equivalent to 0 /8s, 249 /16s and 171 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1235
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 871
Unique aggregates announced from the AfriNIC address blocks: 684
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2071808
Equivalent to 0 /8s, 31 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 805 1184 579 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 539 41 105 Satyam Infoway Ltd.,
17676 369 5516 54 XTAGE CORPORATION
4755 366 132 52 Videsh Sanchar Nigam Ltd. Aut
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 343 161 33 China Netcom Corp.
17557 320 23 158 Pakistan Telecom
703 316 346 243 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
9942 235 72 125 COMindico Australia
4802 233 28 141 Wantree Development
9498 231 82 50 BHARTI BT INTERNET LTD.
4804 230 165 55 Microplex PTY LTD
9800 226 374 69 CHINA UNICOM
7563 220 48 162 Korea Internet Infrastructure
4780 211 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6696 997 AT&T WorldNet Services
701 1246 8433 895 UUNET Technologies, Inc.
1239 934 2883 621 Sprint
2386 844 530 608 AT&T Data Communications Serv
6197 813 378 350 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 749 208 6 Covad Communications
721 718 21028 296 DLA Systems Automation Center
209 644 3458 506 Qwest
3356 644 10956 446 Level 3 Communications, LLC
20115 567 428 304 Charter Communications
3561 554 2417 424 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 449 8288 376 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 434 376 200 BellSouth Network Solutions,
6478 419 730 94 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2011 521 UUNET - Commercial IP service
3320 300 2486 237 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 204 113 182 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 345 139 69 ImpSat
8151 307 439 133 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 165 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
2905 114 276 83 The Internetworking Company o
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
20928 56 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
15706 15 4 2 Sudatel Internet Exchange Aut
8346 14 7 14 SONATEL-AS Autonomous System
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 749 743 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 813 463 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 718 422 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 405 387 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 403 372 E.Spire Communications, Inc.
701 1246 351 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 419 325 AT&T Worldnet Services
17676 369 315 XTAGE CORPORATION
4755 366 314 Videsh Sanchar Nigam Ltd. Aut
1239 934 313 Sprint
9929 343 310 China Netcom Corp.
4355 392 293 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:138 /14:312 /15:555 /16:8109 /17:2268 /18:3901
/19:9747 /20:10398 /21:7925 /22:10974 /23:12682 /24:81316
/25:235 /26:224 /27:120 /28:63 /29:52 /30:110
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 662 813 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 571 1426 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 630 UUNET - Commercial IP service
9583 376 539 Satyam Infoway Ltd.,
1239 375 934 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 405 Century Telephone
701 346 1246 UUNET Technologies, Inc.
6198 316 434 BellSouth Network Solutions,
6467 300 403 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 567 Charter Communications
9929 274 343 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 245 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:746 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:21 60:2 61:604 62:500 63:1829 64:2444
65:2072 66:2461 67:444 68:537 69:756 70:33
72:2 80:516 81:550 82:309 83:190 84:49
128:131 129:165 130:83 131:184 132:34 134:186
135:19 136:185 137:56 138:184 139:41 140:195
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:324 149:110 150:94 151:65 152:143
153:68 154:2 155:128 156:58 157:67 158:131
159:163 160:61 161:70 162:377 163:79 164:215
165:158 166:118 167:221 168:342 169:121 170:294
171:9 192:5562 193:2911 194:2164 195:1503 196:605
198:3689 199:3299 200:3836 201:23 202:4922 203:5750
204:3461 205:2096 206:2242 207:2551 208:2137 209:3002
210:1530 211:676 212:1130 213:1203 214:129 215:30
216:3682 217:1047 218:174 219:80 220:271 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Wed 27 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149136
Prefixes after maximum aggregation: 88327
Unique aggregates announced to Internet: 71509
Total ASes present in the Internet Routing Table: 18314
Origin-only ASes present in the Internet Routing Table: 15912
Origin ASes announcing only one prefix: 7465
Transit ASes present in the Internet Routing Table: 2402
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1346688360
Equivalent to 80 /8s, 68 /16s and 213 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29049
Total APNIC prefixes after maximum aggregation: 14373
Prefixes being announced from the APNIC address blocks: 27172
Unique aggregates announced from the APNIC address blocks: 14274
APNIC Region origin ASes present in the Internet Routing Table: 2159
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165340032
Equivalent to 9 /8s, 218 /16s and 227 /24s
Percentage of available APNIC address space announced: 75.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84560
Total ARIN prefixes after maximum aggregation: 51520
Prefixes being announced from the ARIN address blocks: 64674
Unique aggregates announced from the ARIN address blocks: 23237
ARIN Region origin ASes present in the Internet Routing Table: 9638
ARIN Region origin ASes announcing only one prefix: 3473
ARIN Region transit ASes present in the Internet Routing Table: 936
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234294016
Equivalent to 13 /8s, 247 /16s and 11 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27808
Total RIPE prefixes after maximum aggregation: 19370
Prefixes being announced from the RIPE address blocks: 24674
Unique aggregates announced from the RIPE address blocks: 16166
RIPE Region origin ASes present in the Internet Routing Table: 5951
RIPE Region origin ASes announcing only one prefix: 3205
RIPE Region transit ASes present in the Internet Routing Table: 1018
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 174704256
Equivalent to 10 /8s, 105 /16s and 198 /24s
Percentage of available RIPE address space announced: 61.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6506
Total LACNIC prefixes after maximum aggregation: 2370
Prefixes being announced from the LACNIC address blocks: 6365
Unique aggregates announced from the LACNIC address blocks: 3822
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 116
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16354816
Equivalent to 0 /8s, 249 /16s and 142 /24s
Percentage of available LACNIC address space announced: 48.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1208
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 838
Unique aggregates announced from the AfriNIC address blocks: 674
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2066688
Equivalent to 0 /8s, 31 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 806 1184 579 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 537 41 104 Satyam Infoway Ltd.,
4755 372 132 52 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 344 161 33 China Netcom Corp.
17557 320 23 158 Pakistan Telecom
703 317 346 244 UUNET
2764 282 272 230 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
9942 236 72 126 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 82 50 BHARTI BT INTERNET LTD.
4804 230 165 55 Microplex PTY LTD
9800 225 373 68 CHINA UNICOM
7563 220 48 162 Korea Internet Infrastructure
4780 211 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6697 994 AT&T WorldNet Services
701 1240 8448 890 UUNET Technologies, Inc.
1239 934 2883 621 Sprint
2386 839 530 604 AT&T Data Communications Serv
6197 813 378 350 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 747 208 6 Covad Communications
721 721 21028 297 DLA Systems Automation Center
3356 644 10956 446 Level 3 Communications, LLC
209 641 3457 505 Qwest
20115 566 427 303 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 449 8288 376 SBC Internet Services
705 436 163 275 UUNET Technologies, Inc.
6198 432 347 208 BellSouth Network Solutions,
6478 418 728 93 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 522 UUNET - Commercial IP service
3320 300 2486 237 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 204 113 182 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 138 68 ImpSat
8151 307 439 133 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 166 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
27716 73 9 16 Eveloz
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 747 741 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 813 463 BellSouth Network Solutions,
9583 537 433 Satyam Infoway Ltd.,
721 721 424 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 404 386 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 402 371 E.Spire Communications, Inc.
701 1240 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 418 325 AT&T Worldnet Services
4755 372 320 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 934 313 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:555 /16:8111 /17:2265 /18:3900
/19:9738 /20:10400 /21:7924 /22:10953 /23:12669 /24:81229
/25:237 /26:224 /27:119 /28:63 /29:52 /30:110
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 732 747 Covad Communications
6197 662 813 BellSouth Network Solutions,
2386 606 839 AT&T Data Communications Serv
7018 578 1430 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 934 Sprint
9583 375 537 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 351 404 Century Telephone
701 342 1240 UUNET Technologies, Inc.
6198 316 432 BellSouth Network Solutions,
6467 299 402 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
20115 276 566 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 245 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1435 13:1 15:5 16:2
17:3 20:5 24:744 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:20 60:2 61:602 62:500 63:1831 64:2437
65:2075 66:2465 67:443 68:537 69:753 70:32
72:2 80:511 81:544 82:307 83:188 84:49
128:129 129:165 130:83 131:183 132:34 134:187
135:19 136:187 137:56 138:184 139:41 140:193
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:327 149:110 150:94 151:65 152:146
153:68 154:2 155:128 156:58 157:65 158:131
159:163 160:61 161:70 162:376 163:79 164:214
165:158 166:119 167:221 168:340 169:121 170:290
171:9 192:5556 193:2913 194:2161 195:1498 196:594
198:3690 199:3299 200:3811 201:23 202:4905 203:5751
204:3459 205:2088 206:2249 207:2557 208:2129 209:2998
210:1528 211:676 212:1131 213:1202 214:129 215:30
216:3688 217:1048 218:176 219:86 220:270 221:65
222:22
End of report
Routing Table Report 04:00 +10GMT Tue 26 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149058
Prefixes after maximum aggregation: 88265
Unique aggregates announced to Internet: 71464
Total ASes present in the Internet Routing Table: 18306
Origin-only ASes present in the Internet Routing Table: 15903
Origin ASes announcing only one prefix: 7463
Transit ASes present in the Internet Routing Table: 2403
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345923692
Equivalent to 80 /8s, 57 /16s and 42 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68734
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28989
Total APNIC prefixes after maximum aggregation: 14340
Prefixes being announced from the APNIC address blocks: 27123
Unique aggregates announced from the APNIC address blocks: 14260
APNIC Region origin ASes present in the Internet Routing Table: 2154
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165218176
Equivalent to 9 /8s, 217 /16s and 7 /24s
Percentage of available APNIC address space announced: 75.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84486
Total ARIN prefixes after maximum aggregation: 51488
Prefixes being announced from the ARIN address blocks: 64612
Unique aggregates announced from the ARIN address blocks: 23232
ARIN Region origin ASes present in the Internet Routing Table: 9634
ARIN Region origin ASes announcing only one prefix: 3471
ARIN Region transit ASes present in the Internet Routing Table: 932
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234089216
Equivalent to 13 /8s, 243 /16s and 235 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27860
Total RIPE prefixes after maximum aggregation: 19379
Prefixes being announced from the RIPE address blocks: 24680
Unique aggregates announced from the RIPE address blocks: 16160
RIPE Region origin ASes present in the Internet Routing Table: 5955
RIPE Region origin ASes announcing only one prefix: 3209
RIPE Region transit ASes present in the Internet Routing Table: 1020
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174610816
Equivalent to 10 /8s, 104 /16s and 89 /24s
Percentage of available RIPE address space announced: 61.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6513
Total LACNIC prefixes after maximum aggregation: 2364
Prefixes being announced from the LACNIC address blocks: 6362
Unique aggregates announced from the LACNIC address blocks: 3801
LACNIC Region origin ASes present in the Internet Routing Table: 398
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16336640
Equivalent to 0 /8s, 249 /16s and 71 /24s
Percentage of available LACNIC address space announced: 48.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1205
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 843
Unique aggregates announced from the AfriNIC address blocks: 680
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2068224
Equivalent to 0 /8s, 31 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 804 1184 577 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 537 41 104 Satyam Infoway Ltd.,
4755 373 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 345 161 33 China Netcom Corp.
17557 319 23 157 Pakistan Telecom
703 317 346 244 UUNET
2764 281 272 229 connect.com.au pty ltd
7474 264 268 197 Optus Communications Pty Ltd
9942 237 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 50 49 BHARTI BT INTERNET LTD.
4804 229 165 55 Microplex PTY LTD
9800 224 372 67 CHINA UNICOM
7563 218 48 162 Korea Internet Infrastructure
4780 211 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6697 994 AT&T WorldNet Services
701 1241 8434 891 UUNET Technologies, Inc.
1239 935 2883 622 Sprint
2386 841 530 605 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 746 208 6 Covad Communications
721 720 21028 297 DLA Systems Automation Center
3356 642 10940 443 Level 3 Communications, LLC
209 640 3457 504 Qwest
20115 566 427 303 Charter Communications
3561 558 2417 422 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 498 709 98 Adelphia Corp.
7132 446 8272 375 SBC Internet Services
6198 441 504 188 BellSouth Network Solutions,
705 437 163 276 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 522 UUNET - Commercial IP service
3320 301 2486 238 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 206 114 184 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 138 68 ImpSat
8151 307 439 133 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 185 94 20 Telefonica Del Peru
11664 165 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 122 163 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
9129 33 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 537 433 Satyam Infoway Ltd.,
721 720 423 DLA Systems Automation Center
7843 498 400 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 404 386 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 401 371 E.Spire Communications, Inc.
701 1241 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 415 322 AT&T Worldnet Services
4755 373 320 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 935 313 Sprint
9929 345 312 China Netcom Corp.
4355 390 291 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:312 /15:553 /16:8106 /17:2264 /18:3902
/19:9735 /20:10381 /21:7923 /22:10938 /23:12660 /24:81205
/25:235 /26:223 /27:119 /28:63 /29:51 /30:112
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 608 841 AT&T Data Communications Serv
7018 576 1430 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 935 Sprint
9583 375 537 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 351 404 Century Telephone
701 342 1241 UUNET Technologies, Inc.
6198 316 441 BellSouth Network Solutions,
6467 299 401 E.Spire Communications, Inc.
6517 280 304 Yipes Communications, Inc.
9929 276 345 China Netcom Corp.
20115 276 566 Charter Communications
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 246 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1434 13:1 15:5 16:2
17:3 19:1 20:5 24:745 32:72 33:2
38:81 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:2 61:597 62:495 63:1827
64:2435 65:2071 66:2467 67:442 68:537 69:752
70:31 80:512 81:542 82:310 83:189 84:46
128:127 129:165 130:83 131:182 132:34 134:187
135:19 136:187 137:56 138:183 139:41 140:193
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:326 149:110 150:94 151:65 152:147
153:68 154:2 155:127 156:58 157:66 158:131
159:163 160:61 161:70 162:376 163:79 164:214
165:158 166:119 167:221 168:339 169:121 170:294
171:9 192:5589 193:2915 194:2164 195:1497 196:599
198:3687 199:3299 200:3818 201:22 202:4901 203:5748
204:3453 205:2083 206:2248 207:2556 208:2125 209:2992
210:1525 211:673 212:1133 213:1198 214:129 215:30
216:3680 217:1046 218:180 219:86 220:270 221:65
222:20
End of report
Routing Table Report 04:00 +10GMT Mon 25 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149060
Prefixes after maximum aggregation: 88253
Unique aggregates announced to Internet: 71452
Total ASes present in the Internet Routing Table: 18301
Origin-only ASes present in the Internet Routing Table: 15898
Origin ASes announcing only one prefix: 7458
Transit ASes present in the Internet Routing Table: 2403
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345257324
Equivalent to 80 /8s, 46 /16s and 255 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29033
Total APNIC prefixes after maximum aggregation: 14327
Prefixes being announced from the APNIC address blocks: 27167
Unique aggregates announced from the APNIC address blocks: 14259
APNIC Region origin ASes present in the Internet Routing Table: 2151
APNIC Region origin ASes announcing only one prefix: 644
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165206656
Equivalent to 9 /8s, 216 /16s and 218 /24s
Percentage of available APNIC address space announced: 75.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84494
Total ARIN prefixes after maximum aggregation: 51518
Prefixes being announced from the ARIN address blocks: 64621
Unique aggregates announced from the ARIN address blocks: 23237
ARIN Region origin ASes present in the Internet Routing Table: 9636
ARIN Region origin ASes announcing only one prefix: 3472
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234077440
Equivalent to 13 /8s, 243 /16s and 189 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27826
Total RIPE prefixes after maximum aggregation: 19362
Prefixes being announced from the RIPE address blocks: 24645
Unique aggregates announced from the RIPE address blocks: 16156
RIPE Region origin ASes present in the Internet Routing Table: 5952
RIPE Region origin ASes announcing only one prefix: 3208
RIPE Region transit ASes present in the Internet Routing Table: 1019
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174303104
Equivalent to 10 /8s, 99 /16s and 167 /24s
Percentage of available RIPE address space announced: 61.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6502
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6357
Unique aggregates announced from the LACNIC address blocks: 3804
LACNIC Region origin ASes present in the Internet Routing Table: 397
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16348672
Equivalent to 0 /8s, 249 /16s and 118 /24s
Percentage of available LACNIC address space announced: 48.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1200
Total AfriNIC prefixes after maximum aggregation: 691
Prefixes being announced from the AfriNIC address blocks: 844
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2070528
Equivalent to 0 /8s, 31 /16s and 152 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 856 4407 163 Data Communications Bureau
1221 804 1184 577 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 536 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 345 161 33 China Netcom Corp.
17557 319 23 157 Pakistan Telecom
703 316 346 245 UUNET
2764 282 272 230 connect.com.au pty ltd
7474 263 268 197 Optus Communications Pty Ltd
9942 236 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 50 49 BHARTI BT INTERNET LTD.
4804 229 165 55 Microplex PTY LTD
9800 224 372 67 CHINA UNICOM
7563 217 48 162 Korea Internet Infrastructure
4780 212 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1428 6696 992 AT&T WorldNet Services
701 1242 8434 892 UUNET Technologies, Inc.
1239 935 2883 621 Sprint
2386 841 530 605 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 791 637 215 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21028 297 DLA Systems Automation Center
3356 642 10956 443 Level 3 Communications, LLC
209 640 3457 504 Qwest
20115 566 427 303 Charter Communications
3561 558 2417 422 Cable & Wireless USA
852 509 1126 397 Telus Advanced Communications
7843 498 709 98 Adelphia Corp.
7132 446 8272 375 SBC Internet Services
705 435 163 274 UUNET Technologies, Inc.
6198 432 347 208 BellSouth Network Solutions,
6478 415 728 93 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2009 519 UUNET - Commercial IP service
3320 301 2486 238 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 261 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 348 138 68 ImpSat
8151 304 438 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 185 94 20 Telefonica Del Peru
11664 165 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 78 18 9 Red de Interconexion Universi
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 34 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 856 693 Data Communications Bureau
4323 791 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 536 432 Satyam Infoway Ltd.,
721 721 424 DLA Systems Automation Center
7843 498 400 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 403 385 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1242 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 935 314 Sprint
9929 345 312 China Netcom Corp.
4355 390 291 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:137 /14:311 /15:553 /16:8101 /17:2264 /18:3895
/19:9727 /20:10373 /21:7921 /22:10948 /23:12661 /24:81225
/25:237 /26:223 /27:119 /28:63 /29:50 /30:113
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 608 841 AT&T Data Communications Serv
7018 575 1428 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 380 628 UUNET - Commercial IP service
1239 377 935 Sprint
9583 374 536 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 343 1242 UUNET Technologies, Inc.
6198 316 432 BellSouth Network Solutions,
6467 296 399 E.Spire Communications, Inc.
6517 279 303 Yipes Communications, Inc.
9929 276 345 China Netcom Corp.
20115 276 566 Charter Communications
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 253 791 Time Warner Telecom
3320 246 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1434 13:1 15:5 16:2
17:3 20:6 24:745 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:20 59:1 60:3 61:595 62:494 63:1835
64:2430 65:2073 66:2464 67:440 68:536 69:753
70:31 80:516 81:546 82:309 83:188 84:46
128:121 129:164 130:83 131:183 132:33 134:186
135:19 136:184 137:55 138:184 139:41 140:194
141:108 142:123 143:69 144:159 145:42 146:295
147:94 148:327 149:110 150:94 151:65 152:152
153:68 154:2 155:128 156:58 157:66 158:131
159:163 160:61 161:70 162:373 163:78 164:214
165:158 166:119 167:221 168:339 169:121 170:294
171:9 192:5583 193:2912 194:2163 195:1502 196:600
198:3690 199:3300 200:3817 201:22 202:4903 203:5744
204:3455 205:2093 206:2250 207:2558 208:2129 209:2982
210:1523 211:672 212:1130 213:1191 214:129 215:30
216:3673 217:1045 218:180 219:104 220:269 221:65
222:43
End of report
Routing Table Report 04:00 +10GMT Thu 21 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148994
Prefixes after maximum aggregation: 88130
Unique aggregates announced to Internet: 69296
Total ASes present in the Internet Routing Table: 18272
Origin-only ASes present in the Internet Routing Table: 15863
Origin ASes announcing only one prefix: 7435
Transit ASes present in the Internet Routing Table: 2409
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1348556652
Equivalent to 80 /8s, 97 /16s and 87 /24s
Percentage of available address space announced: 36.4
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68624
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28945
Total APNIC prefixes after maximum aggregation: 14321
Prefixes being announced from the APNIC address blocks: 27098
Unique aggregates announced from the APNIC address blocks: 14287
APNIC Region origin ASes present in the Internet Routing Table: 2154
APNIC Region origin ASes announcing only one prefix: 646
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 165114496
Equivalent to 9 /8s, 215 /16s and 114 /24s
Percentage of available APNIC address space announced: 75.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84546
Total ARIN prefixes after maximum aggregation: 51461
Prefixes being announced from the ARIN address blocks: 64668
Unique aggregates announced from the ARIN address blocks: 21099
ARIN Region origin ASes present in the Internet Routing Table: 9632
ARIN Region origin ASes announcing only one prefix: 3469
ARIN Region transit ASes present in the Internet Routing Table: 937
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237270784
Equivalent to 14 /8s, 36 /16s and 119 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27764
Total RIPE prefixes after maximum aggregation: 19302
Prefixes being announced from the RIPE address blocks: 24588
Unique aggregates announced from the RIPE address blocks: 16121
RIPE Region origin ASes present in the Internet Routing Table: 5925
RIPE Region origin ASes announcing only one prefix: 3189
RIPE Region transit ASes present in the Internet Routing Table: 1019
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 174131072
Equivalent to 10 /8s, 97 /16s and 7 /24s
Percentage of available RIPE address space announced: 61.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6470
Total LACNIC prefixes after maximum aggregation: 2353
Prefixes being announced from the LACNIC address blocks: 6332
Unique aggregates announced from the LACNIC address blocks: 3776
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16213504
Equivalent to 0 /8s, 247 /16s and 102 /24s
Percentage of available LACNIC address space announced: 48.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1265
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 895
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2070528
Equivalent to 0 /8s, 31 /16s and 152 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 855 4407 163 Data Communications Bureau
1221 806 1184 579 Telstra Pty Ltd
4766 547 3407 266 Korea Internet Exchange for "
9583 535 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 346 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 313 342 242 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 262 268 197 Optus Communications Pty Ltd
9942 235 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 229 50 49 BHARTI BT INTERNET LTD.
9800 223 372 66 CHINA UNICOM
7563 215 48 162 Korea Internet Infrastructure
4814 206 232 6 China Telecom (Group)
10036 204 19 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6743 987 AT&T WorldNet Services
701 1246 8432 894 UUNET Technologies, Inc.
1239 936 2867 623 Sprint
2386 845 532 608 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 638 216 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21036 298 DLA Systems Automation Center
3356 645 10956 446 Level 3 Communications, LLC
209 637 3471 502 Qwest
20115 601 427 303 Charter Communications
3561 559 2433 423 Cable & Wireless USA
852 511 1142 397 Telus Advanced Communications
7843 495 701 99 Adelphia Corp.
7132 447 8287 375 SBC Internet Services
6198 440 504 188 BellSouth Network Solutions,
705 433 163 274 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 411 36 19 Armstrong Cable Services
22909 405 866 26 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 522 UUNET - Commercial IP service
3320 302 2486 239 Deutsche Telekom AG
3301 281 1100 271 TeliaNet Sweden
8220 281 461 267 COLT Internet - International
21502 260 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 138 67 ImpSat
8151 306 440 131 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 166 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 122 163 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 97 6 8 Telefonica del Sur S.A.
11311 86 8 25 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
14522 79 5 9 SatNet S.A.
4270 78 18 9 Red de Interconexion Universi
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 BCS-Net (PTY) Ltd
24835 34 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
14988 13 16 1 Botswana Telecommunications C
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 855 692 Data Communications Bureau
4323 792 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 535 431 Satyam Infoway Ltd.,
721 721 423 DLA Systems Automation Center
7843 495 396 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22909 405 379 Comcast Cable Corporation
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1246 352 UUNET Technologies, Inc.
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 936 313 Sprint
9929 346 313 China Netcom Corp.
20115 601 298 Charter Communications
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:3 /10:6 /11:15 /12:61
/13:137 /14:311 /15:554 /16:8108 /17:2262 /18:3891
/19:9718 /20:10375 /21:7894 /22:10931 /23:12646 /24:81244
/25:237 /26:210 /27:113 /28:61 /29:50 /30:111
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 611 845 AT&T Data Communications Serv
7018 573 1422 AT&T WorldNet Services
27364 395 411 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 936 Sprint
9583 373 535 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 342 1246 UUNET Technologies, Inc.
6198 315 440 BellSouth Network Solutions,
20115 311 601 Charter Communications
6467 296 399 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
9929 277 346 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 257 260 NUMERICABLE is a cabled netwo
4323 250 792 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1424 13:1 15:5 16:2
17:3 18:1 20:6 24:745 32:68 33:2
38:80 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:4 61:597 62:496 63:1841
64:2419 65:2074 66:2475 67:433 68:562 69:740
70:94 80:521 81:547 82:311 83:189 84:43
128:132 129:165 130:83 131:183 132:34 134:189
135:19 136:187 137:55 138:183 139:38 140:182
141:107 142:122 143:69 144:159 145:42 146:292
147:94 148:327 149:111 150:94 151:65 152:148
153:68 154:2 155:127 156:58 157:66 158:131
159:163 160:63 161:73 162:375 163:79 164:214
165:158 166:120 167:222 168:356 169:120 170:285
171:9 192:5586 193:2902 194:2151 195:1499 196:652
198:3644 199:3315 200:3812 201:21 202:4906 203:5741
204:3455 205:2089 206:2274 207:2569 208:2127 209:2986
210:1500 211:636 212:1120 213:1187 214:129 215:30
216:3653 217:1047 218:182 219:104 220:267 221:65
222:43
End of report
Routing Table Report 04:00 +10GMT Wed 20 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149044
Prefixes after maximum aggregation: 88144
Unique aggregates announced to Internet: 71356
Total ASes present in the Internet Routing Table: 18272
Origin-only ASes present in the Internet Routing Table: 15856
Origin ASes announcing only one prefix: 7430
Transit ASes present in the Internet Routing Table: 2416
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345618796
Equivalent to 80 /8s, 52 /16s and 131 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68639
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28987
Total APNIC prefixes after maximum aggregation: 14340
Prefixes being announced from the APNIC address blocks: 27139
Unique aggregates announced from the APNIC address blocks: 14287
APNIC Region origin ASes present in the Internet Routing Table: 2156
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 165103744
Equivalent to 9 /8s, 215 /16s and 72 /24s
Percentage of available APNIC address space announced: 75.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84522
Total ARIN prefixes after maximum aggregation: 51452
Prefixes being announced from the ARIN address blocks: 64671
Unique aggregates announced from the ARIN address blocks: 23189
ARIN Region origin ASes present in the Internet Routing Table: 9629
ARIN Region origin ASes announcing only one prefix: 3464
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234120192
Equivalent to 13 /8s, 244 /16s and 100 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27797
Total RIPE prefixes after maximum aggregation: 19299
Prefixes being announced from the RIPE address blocks: 24624
Unique aggregates announced from the RIPE address blocks: 16111
RIPE Region origin ASes present in the Internet Routing Table: 5927
RIPE Region origin ASes announcing only one prefix: 3189
RIPE Region transit ASes present in the Internet Routing Table: 1025
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 174465664
Equivalent to 10 /8s, 102 /16s and 34 /24s
Percentage of available RIPE address space announced: 61.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6471
Total LACNIC prefixes after maximum aggregation: 2363
Prefixes being announced from the LACNIC address blocks: 6319
Unique aggregates announced from the LACNIC address blocks: 3774
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16298240
Equivalent to 0 /8s, 248 /16s and 177 /24s
Percentage of available LACNIC address space announced: 48.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1263
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 892
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 855 4407 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
4766 547 3407 266 Korea Internet Exchange for "
9583 535 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 346 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 311 342 240 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 262 268 197 Optus Communications Pty Ltd
9942 235 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 230 50 49 BHARTI BT INTERNET LTD.
9800 230 374 67 CHINA UNICOM
4814 206 232 6 China Telecom (Group)
7563 206 48 162 Korea Internet Infrastructure
10036 204 19 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6743 989 AT&T WorldNet Services
701 1247 8418 895 UUNET Technologies, Inc.
1239 936 2867 623 Sprint
2386 845 532 608 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 638 216 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21036 298 DLA Systems Automation Center
3356 642 10955 442 Level 3 Communications, LLC
209 635 3469 502 Qwest
20115 599 427 303 Charter Communications
3561 560 2433 423 Cable & Wireless USA
852 511 1142 397 Telus Advanced Communications
7843 495 701 99 Adelphia Corp.
7132 448 8287 376 SBC Internet Services
6198 442 504 188 BellSouth Network Solutions,
705 432 163 273 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 411 36 19 Armstrong Cable Services
22909 405 866 26 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2013 521 UUNET - Commercial IP service
3320 302 2486 239 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 280 1100 270 TeliaNet Sweden
21502 269 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 153 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 207 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 138 67 ImpSat
8151 306 440 131 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 165 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 97 6 8 Telefonica del Sur S.A.
11311 86 8 25 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
14522 74 5 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 BCS-Net (PTY) Ltd
24835 34 34 7 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
14988 15 16 1 Botswana Telecommunications C
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 855 692 Data Communications Bureau
4323 792 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 535 431 Satyam Infoway Ltd.,
721 721 423 DLA Systems Automation Center
7843 495 396 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22909 405 379 Comcast Cable Corporation
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1247 352 UUNET Technologies, Inc.
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 936 313 Sprint
9929 346 313 China Netcom Corp.
20115 599 296 Charter Communications
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:138 /14:311 /15:554 /16:8105 /17:2265 /18:3898
/19:9726 /20:10373 /21:7890 /22:10923 /23:12646 /24:81301
/25:238 /26:208 /27:112 /28:60 /29:47 /30:109
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 611 845 AT&T Data Communications Serv
7018 572 1422 AT&T WorldNet Services
27364 395 411 Armstrong Cable Services
702 382 630 UUNET - Commercial IP service
1239 375 936 Sprint
9583 372 535 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 341 1247 UUNET Technologies, Inc.
6198 317 442 BellSouth Network Solutions,
20115 309 599 Charter Communications
6467 296 399 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
9929 277 346 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
4323 250 792 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1423 13:1 15:5 16:2
17:3 18:1 20:5 24:745 32:68 33:2
38:79 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:4 61:597 62:501 63:1842
64:2417 65:2072 66:2474 67:439 68:561 69:739
70:94 80:523 81:552 82:315 83:188 84:42
128:128 129:165 130:86 131:183 132:34 134:189
135:17 136:187 137:55 138:183 139:38 140:182
141:108 142:122 143:69 144:160 145:42 146:292
147:94 148:327 149:110 150:92 151:65 152:148
153:68 154:2 155:125 156:57 157:66 158:129
159:163 160:62 161:73 162:375 163:79 164:214
165:159 166:120 167:222 168:358 169:120 170:285
171:9 192:5580 193:2911 194:2154 195:1495 196:649
198:3666 199:3309 200:3800 201:20 202:4911 203:5768
204:3459 205:2100 206:2271 207:2566 208:2129 209:2986
210:1497 211:637 212:1121 213:1192 214:130 215:30
216:3649 217:1054 218:183 219:103 220:267 221:65
222:44
End of report
