Routing Table Report 04:00 +10GMT Wed 06 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148909
Prefixes after maximum aggregation: 87823
Unique aggregates announced to Internet: 70860
Total ASes present in the Internet Routing Table: 18173
Origin-only ASes present in the Internet Routing Table: 15787
Origin ASes announcing only one prefix: 7369
Transit ASes present in the Internet Routing Table: 2386
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 58
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1342951460
Equivalent to 80 /8s, 11 /16s and 208 /24s
Percentage of available address space announced: 36.2
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68635
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28550
Total APNIC prefixes after maximum aggregation: 14274
Prefixes being announced from the APNIC address blocks: 26710
Unique aggregates announced from the APNIC address blocks: 14275
APNIC Region origin ASes present in the Internet Routing Table: 2145
APNIC Region origin ASes announcing only one prefix: 641
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164557952
Equivalent to 9 /8s, 206 /16s and 244 /24s
Percentage of available APNIC address space announced: 75.1
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: 85110
Total ARIN prefixes after maximum aggregation: 51362
Prefixes being announced from the ARIN address blocks: 65075
Unique aggregates announced from the ARIN address blocks: 22943
ARIN Region origin ASes present in the Internet Routing Table: 9592
ARIN Region origin ASes announcing only one prefix: 3439
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233239552
Equivalent to 13 /8s, 230 /16s and 244 /24s
Percentage of available ARIN address space announced: 69.5
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: 27584
Total RIPE prefixes after maximum aggregation: 19157
Prefixes being announced from the RIPE address blocks: 24437
Unique aggregates announced from the RIPE address blocks: 16029
RIPE Region origin ASes present in the Internet Routing Table: 5872
RIPE Region origin ASes announcing only one prefix: 3154
RIPE Region transit ASes present in the Internet Routing Table: 1010
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 172550848
Equivalent to 10 /8s, 72 /16s and 234 /24s
Percentage of available RIPE address space announced: 60.5
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: 6384
Total LACNIC prefixes after maximum aggregation: 2342
Prefixes being announced from the LACNIC address blocks: 6210
Unique aggregates announced from the LACNIC address blocks: 3643
LACNIC Region origin ASes present in the Internet Routing Table: 394
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16235776
Equivalent to 0 /8s, 247 /16s and 189 /24s
Percentage of available LACNIC address space announced: 48.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1273
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 889
Unique aggregates announced from the AfriNIC address blocks: 677
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: 4.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2064640
Equivalent to 0 /8s, 31 /16s and 129 /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 839 4389 159 Data Communications Bureau
1221 809 1184 581 Telstra Pty Ltd
4766 542 3407 265 Korea Internet Exchange for "
9583 529 41 108 Satyam Infoway Ltd.,
17676 370 5532 52 XTAGE CORPORATION
4755 366 132 49 Videsh Sanchar Nigam Ltd. Aut
2907 354 1857 328 SINET Japan
9443 354 69 80 Primus Telecommunications
9929 340 161 33 China Netcom Corp.
17557 316 23 157 Pakistan Telecom
703 312 342 241 UUNET
2764 285 274 233 connect.com.au pty ltd
7474 270 269 201 Optus Communications Pty Ltd
9942 239 73 128 COMindico Australia
4802 233 28 142 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 228 49 48 BHARTI BT INTERNET LTD.
7563 217 48 164 Korea Internet Infrastructure
10036 203 19 186 C&M Communication Co. Ltd.
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1408 6743 980 AT&T WorldNet Services
701 1272 8450 918 UUNET Technologies, Inc.
1239 940 2867 623 Sprint
3549 846 563 205 Global Crossing
2386 843 530 602 AT&T Data Communications Serv
4323 797 637 218 Time Warner Telecom
6197 790 490 322 BellSouth Network Solutions,
18566 743 208 6 Covad Communications
721 722 21012 297 DLA Systems Automation Center
3561 634 2513 432 Cable & Wireless USA
209 626 3465 495 Qwest
3356 589 10924 448 Level 3 Communications, LLC
20115 589 427 302 Charter Communications
852 512 1142 398 Telus Advanced Communications
7843 490 683 99 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
6198 433 402 202 BellSouth Network Solutions,
705 431 163 273 UUNET Technologies, Inc.
22773 400 960 18 Cox Communications, Inc. Atla
5668 398 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 521 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
8220 282 462 268 COLT Internet - International
3301 281 1100 271 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 208 744 178 SWIPnet Swedish IP Network
8708 206 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
3215 189 876 76 France Telecom Transpac
786 176 1794 176 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 151 29 128 Dynamic Network Technologies,
8866 151 18 19 Bulgarian Telecommunication C
25186 149 154 106 France Telecom Transpac's Tra
3269 147 1227 67 TELECOM ITALIA
5400 147 207 119 BT Ignite European Backbone
3303 146 609 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 349 139 68 ImpSat
8151 303 439 129 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 205 100 54 Servicios Alestra S.A de C.V
6147 193 90 20 Telefonica Del Peru
11664 166 13 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 131 58 23 Telecom Argentina Stet-France
6503 125 164 85 AVANTEL, S.A.
11992 90 9 31 Integrated Systems
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
14420 81 5 34 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 58 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
24835 34 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
9129 31 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
14988 25 16 1 Botswana Telecommunications C
16637 24 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
21491 16 1 3 UTL On-line is RF broadband I
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 743 737 Covad Communications
4134 839 680 Data Communications Bureau
3549 846 641 Global Crossing
4323 797 579 Time Warner Telecom
6197 790 468 BellSouth Network Solutions,
721 722 425 DLA Systems Automation Center
9583 529 421 Satyam Infoway Ltd.,
7843 490 391 Adelphia Corp.
22773 400 382 Cox Communications, Inc. Atla
5668 398 380 Century Telephone
27364 396 377 Armstrong Cable Services
6467 390 360 E.Spire Communications, Inc.
701 1272 354 UUNET Technologies, Inc.
22909 383 353 Comcast Cable Corporation
17676 370 318 XTAGE CORPORATION
1239 940 317 Sprint
4755 366 317 Videsh Sanchar Nigam Ltd. Aut
9929 340 307 China Netcom Corp.
6478 375 297 AT&T Worldnet Services
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 24.249.231.0/24 15218 COX Communications
64512 PRIVATE 24.249.232.0/24 15218 COX Communications
64512 PRIVATE 24.249.233.0/24 15218 COX Communications
64512 PRIVATE 24.249.234.0/24 15218 COX Communications
64512 PRIVATE 24.249.235.0/24 15218 COX Communications
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
22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking
22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking
22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
111.0.0.0/24 7563 Korea Internet Infrastructure
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 /12:62
/13:133 /14:306 /15:546 /16:8080 /17:2242 /18:3896
/19:9857 /20:10355 /21:7850 /22:10848 /23:12519 /24:81389
/25:232 /26:208 /27:114 /28:51 /29:32 /30:101
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 743 Covad Communications
6197 634 790 BellSouth Network Solutions,
2386 609 843 AT&T Data Communications Serv
7018 557 1408 AT&T WorldNet Services
3549 448 846 Global Crossing
702 383 631 UUNET - Commercial IP service
27364 380 396 Armstrong Cable Services
1239 376 940 Sprint
9583 368 529 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
701 351 1272 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 317 433 BellSouth Network Solutions,
20115 299 589 Charter Communications
6467 286 390 E.Spire Communications, Inc.
9929 271 340 China Netcom Corp.
6517 266 293 Yipes Communications, Inc.
21502 266 269 NUMERICABLE is a cabled netwo
13609 265 308 Choice One Communications Inc
3561 257 634 Cable & Wireless USA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:7 12:1402 13:1 15:1 16:2
17:3 18:1 20:6 24:724 32:68 33:2
38:79 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:521 62:508 63:1839
64:2542 65:2052 66:2504 67:415 68:547 69:721
70:80 80:530 81:553 82:309 83:174 84:32
111:1 128:114 129:169 130:87 131:185 132:34
134:187 135:17 136:180 137:55 138:181 139:39
140:187 141:188 142:123 143:69 144:163 145:42
146:325 147:94 148:396 149:108 150:87 151:65
152:153 153:68 154:2 155:128 156:57 157:73
158:142 159:163 160:57 161:71 162:374 163:80
164:213 165:161 166:118 167:222 168:357 169:120
170:280 171:9 192:5575 193:2903 194:2136 195:1518
196:647 198:3677 199:3287 200:3696 201:20 202:4872
203:5717 204:3330 205:2099 206:2435 207:2640 208:2276
209:2977 210:1488 211:631 212:1111 213:1191 214:131
215:31 216:3683 217:1046 218:175 219:101 220:256
221:37 222:43
End of report