Routing Table Report 04:00 +10GMT Fri 25 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156353
Prefixes after maximum aggregation: 91634
Unique aggregates announced to Internet: 75709
Total ASes present in the Internet Routing Table: 19018
Origin-only ASes present in the Internet Routing Table: 16536
Origin ASes announcing only one prefix: 7711
Transit ASes present in the Internet Routing Table: 2482
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1379138768
Equivalent to 82 /8s, 51 /16s and 252 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31206
Total APNIC prefixes after maximum aggregation: 15113
Prefixes being announced from the APNIC address blocks: 29237
Unique aggregates announced from the APNIC address blocks: 15269
APNIC Region origin ASes present in the Internet Routing Table: 2214
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 174881408
Equivalent to 10 /8s, 108 /16s and 122 /24s
Percentage of available APNIC address space announced: 64.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87190
Total ARIN prefixes after maximum aggregation: 52940
Prefixes being announced from the ARIN address blocks: 66533
Unique aggregates announced from the ARIN address blocks: 24346
ARIN Region origin ASes present in the Internet Routing Table: 9883
ARIN Region origin ASes announcing only one prefix: 3576
ARIN Region transit ASes present in the Internet Routing Table: 949
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 239625728
Equivalent to 14 /8s, 72 /16s and 102 /24s
Percentage of available ARIN address space announced: 71.4
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, 29696-30719, 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: 29710
Total RIPE prefixes after maximum aggregation: 20454
Prefixes being announced from the RIPE address blocks: 26591
Unique aggregates announced from the RIPE address blocks: 17636
RIPE Region origin ASes present in the Internet Routing Table: 6330
RIPE Region origin ASes announcing only one prefix: 3336
RIPE Region transit ASes present in the Internet Routing Table: 1080
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 193049408
Equivalent to 11 /8s, 129 /16s and 179 /24s
Percentage of available RIPE address space announced: 67.7
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: 6879
Total LACNIC prefixes after maximum aggregation: 2416
Prefixes being announced from the LACNIC address blocks: 6789
Unique aggregates announced from the LACNIC address blocks: 4018
LACNIC Region origin ASes present in the Internet Routing Table: 420
LACNIC Region origin ASes announcing only one prefix: 126
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17585408
Equivalent to 1 /8s, 12 /16s and 85 /24s
Percentage of available LACNIC address space announced: 52.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1357
Total AfriNIC prefixes after maximum aggregation: 711
Prefixes being announced from the AfriNIC address blocks: 908
Unique aggregates announced from the AfriNIC address blocks: 716
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177280
Equivalent to 0 /8s, 33 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 13.0
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 893 4712 174 Data Communications Bureau
1221 787 1185 559 Telstra Pty Ltd
9583 600 49 16 Satyam Infoway Ltd.,
4766 593 3416 284 Korea Internet Exchange for "
4755 467 241 99 Videsh Sanchar Nigam Ltd. Aut
7545 457 73 165 TPG Internet Pty Ltd
17676 400 6012 68 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 353 165 37 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 324 24 149 Pakistan Telecom
10036 296 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 274 355 215 UUNET
2764 258 238 206 connect.com.au pty ltd
9498 240 81 53 BHARTI BT INTERNET LTD.
9800 240 395 71 CHINA UNICOM
4808 237 170 129 CHINANET core WAN North
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
4802 229 28 138 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6609 969 AT&T WorldNet Services
721 1149 21835 319 DLA Systems Automation Center
701 1033 8309 880 UUNET Technologies, Inc.
4323 1028 668 219 Time Warner Telecom
1239 950 2872 656 Sprint
6197 866 379 405 BellSouth Network Solutions,
2386 822 496 611 AT&T Data Communications Serv
18566 767 208 6 Covad Communications
174 683 5487 587 PSINet Inc.
209 648 3466 499 Qwest
3356 591 10867 442 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 563 2374 419 Cable & Wireless USA
852 527 1126 399 Telus Advanced Communications
3602 500 120 93 Sprint Canada, Inc.
6478 494 822 106 AT&T Worldnet Services
22773 474 1090 24 Cox Communications, Inc. Atla
6198 467 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 450 91 20 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 2006 501 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 229 476 223 Song Networks
8708 219 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
3215 203 1025 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 178 47 142 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3300 164 185 84 AUCS Communications Services
3269 163 1424 72 TELECOM ITALIA
719 161 322 103 LANLINK autonomous system
25186 141 138 99 France Telecom Transpac's Tra
5400 139 234 123 BT Ignite European Backbone
9121 135 227 20 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 70 ImpSat
8151 335 501 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 101 55 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 151 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 118 146 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 90 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
6535 86 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 82 8 8 Telecommunications Services o
10481 81 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 85 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 42 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 30 3 2 UUNET Kenya
12455 30 6 7 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 16 2 3 Swift Global Kenya Ltd.Is an
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1149 830 DLA Systems Automation Center
4323 1028 809 Time Warner Telecom
18566 767 761 Covad Communications
4134 893 719 Data Communications Bureau
9583 600 584 Satyam Infoway Ltd.,
6197 866 461 BellSouth Network Solutions,
22773 474 450 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 450 430 Century Telephone
3602 500 407 Sprint Canada, Inc.
6478 494 388 AT&T Worldnet Services
4755 467 368 Videsh Sanchar Nigam Ltd. Aut
17676 400 332 XTAGE CORPORATION
6467 360 327 E.Spire Communications, Inc.
9929 353 316 China Netcom Corp.
4766 593 309 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
1239 950 294 Sprint
7545 457 292 TPG Internet Pty Ltd
6140 361 291 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
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 /10:8 /11:14 /12:62
/13:148 /14:305 /15:564 /16:8272 /17:2422 /18:4127
/19:10083 /20:10722 /21:8560 /22:11831 /23:13071 /24:85347
/25:264 /26:239 /27:97 /28:49 /29:24 /30:81
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 752 767 Covad Communications
6197 709 866 BellSouth Network Solutions,
7018 632 1459 AT&T WorldNet Services
2386 586 822 AT&T Data Communications Serv
4323 479 1028 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 422 600 Satyam Infoway Ltd.,
4766 404 593 Korea Internet Exchange for "
5668 381 450 Century Telephone
702 372 610 UUNET - Commercial IP service
1239 370 950 Sprint
6198 334 467 BellSouth Network Solutions,
10036 296 296 C&M Communication Co. Ltd.
6517 286 308 Yipes Communications, Inc.
9929 278 353 China Netcom Corp.
6467 273 360 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 245 1033 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1488 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:65 33:4
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:3 60:21 61:705 62:527
63:1863 64:2582 65:2050 66:2719 67:520 68:504
69:917 70:64 71:9 72:72 80:544 81:517
82:331 83:273 84:131 85:122 128:139 129:162
130:95 131:279 132:36 133:1 134:142 135:30
136:192 137:65 138:160 139:53 140:198 141:101
142:140 143:128 144:173 145:44 146:278 147:100
148:264 149:164 150:95 151:63 152:110 153:81
154:3 155:143 156:63 157:81 158:151 159:164
160:67 161:59 162:420 163:84 164:216 165:157
166:130 167:226 168:403 169:133 170:314 171:9
192:5692 193:3081 194:2263 195:1597 196:636 198:3854
199:3285 200:3979 201:52 202:5201 203:6036 204:3658
205:2013 206:2294 207:2696 208:2087 209:3191 210:1572
211:786 212:1172 213:1269 214:243 215:31 216:3643
217:1078 218:189 219:113 220:365 221:85 222:75
End of report