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Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 11 Apr, 2003
Analysis Summary
----------------
BGP routing table entries examined: 124049
Prefixes after maximum aggregation: 78292
Unique aggregates announced to Internet: 59307
Total ASes present in the Internet Routing Table: 14970
Origin-only ASes present in the Internet Routing Table: 12977
Origin ASes announcing only one prefix: 5887
Transit ASes present in the Internet Routing Table: 1993
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 20
Number of addresses announced to Internet: 1206880288
Equivalent to 71 /8s, 239 /16s and 136 /24s
Percentage of available address space announced: 32.6
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 58512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20748
Total APNIC prefixes after maximum aggregation: 12172
Prefixes being announced from the APNIC address blocks: 19182
Unique aggregates announced from the APNIC address blocks: 11860
APNIC Region origin ASes present in the Internet Routing Table: 1766
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 290
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 109842432
Equivalent to 6 /8s, 140 /16s and 16 /24s
Percentage of available APNIC address space announced: 59.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76640
Total ARIN prefixes after maximum aggregation: 48173
Prefixes being announced from the ARIN address blocks: 54924
Unique aggregates announced from the ARIN address blocks: 16806
ARIN Region origin ASes present in the Internet Routing Table: 8306
ARIN Region origin ASes announcing only one prefix: 2829
ARIN Region transit ASes present in the Internet Routing Table: 793
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190251264
Equivalent to 11 /8s, 87 /16s and 1 /24s
Percentage of available ARIN address space announced: 70.9
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21362
Total RIPE prefixes after maximum aggregation: 15737
Prefixes being announced from the RIPE address blocks: 17881
Unique aggregates announced from the RIPE address blocks: 11986
RIPE Region origin ASes present in the Internet Routing Table: 4498
RIPE Region origin ASes announcing only one prefix: 2454
RIPE Region transit ASes present in the Internet Routing Table: 811
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 128928000
Equivalent to 7 /8s, 175 /16s and 73 /24s
Percentage of available RIPE address space announced: 76.8
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
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5297
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 4681
Unique aggregates announced from the LACNIC address blocks: 2960
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12420096
Equivalent to 0 /8s, 189 /16s and 132 /24s
Percentage of available LACNIC address space announced: 37.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1100 1105 790 Telstra Pty Ltd
703 394 365 313 UUNET
2907 379 1974 358 SINET Japan
17557 378 28 142 Pakistan Telecom
2764 323 341 291 connect.com.au pty ltd
7474 271 276 207 Optus Communications Pty Ltd
4814 270 79 15 China Telecom (Group)
3786 245 775 212 DACOM Corporation
17676 239 3686 26 XTAGE CORPORATION
4755 236 135 75 Videsh Sanchar Nigam Ltd. Aut
4134 235 1999 122 Data Communications Bureau
9583 220 33 14 Satyam Infoway Ltd.,
4766 210 2078 159 Korea Internet Exchange for "
9443 180 58 79 Primus Telecommunications
9800 175 244 53 CHINA UNICOM
9238 140 8 17 TATA ISP
7476 137 182 29 The University of Queensland
4739 129 57 118 Commerical Internet eXchange
4716 128 731 122 TTnet
9498 126 9 10 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1596 8895 1124 UUNET Technologies, Inc.
7018 1360 7172 941 AT&T
1239 967 3120 681 Sprint
3908 933 1571 475 Supernet, Inc.
7132 802 6148 414 Southwestern Bell Internet Se
1 772 2846 493 GENUITY
189 706 341 291 Genuity
4151 691 691 58 USDA
7843 645 401 163 Adelphia Corp.
3561 585 2351 337 Cable & Wireless USA
4323 568 498 165 Time Warner Communications, I
852 549 1110 430 Telus Advanced Communications
18566 540 128 6 Covad Communications
209 535 2140 302 Qwest
2386 508 482 269 AT&T Data Communications Serv
690 495 73 316 Merit Network
705 487 229 215 UUNET Technologies, Inc.
7066 485 204 255 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
6198 455 226 174 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 779 2203 646 UUNET - Commercial IP service
3215 320 851 175 France Telecom Transpac
3301 309 1157 299 TeliaNet Sweden
3320 269 1997 231 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 216 327 190 SWIPnet Swedish IP Network
5400 196 97 110 BT Ignite European Backbone
5515 196 779 168 Sonera Solution Autonomous Sy
719 195 307 125 LANLINK autonomous system
786 180 1874 180 The JANET IP Service
8220 169 298 159 COLT Internet - International
20858 161 17 3 This AS will be used to conne
8708 155 44 151 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
12302 126 18 33 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 112 755 63 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 294 99 105 ImpSat
7303 242 36 61 Telecom Argentina Stet-France
8151 217 334 119 UniNet S.A. de C.V.
11172 163 66 33 Servicios Alestra S.A de C.V
6503 154 207 108 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 106 3 34 Red Universitaria Nacional
6147 90 62 20 Telefonica Del Peru
11992 90 9 36 Integrated Systems
1916 75 306 45 Fundacao de Amparo a Pesquisa
8065 75 6 15 Empresas Publicas de Medellin
6535 74 5 19 Chilesat Servicios Empresari
13999 74 36 8 Mega Cable S.A. de C.V.
15311 72 28 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
11830 65 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 691 633 USDA
18566 540 534 Covad Communications
7843 645 482 Adelphia Corp.
3908 933 458 Supernet, Inc.
7018 1360 419 AT&T
189 706 415 Genuity
4323 568 403 Time Warner Communications, I
7132 802 388 Southwestern Bell Internet Se
1221 1100 310 Telstra Pty Ltd
1239 967 286 Sprint
6347 368 286 SAVVIS Communications Corpora
6198 455 281 BellSouth Network Solutions,
6197 476 280 BellSouth Network Solutions,
1 772 279 GENUITY
705 487 272 UUNET Technologies, Inc.
4355 373 272 EarthLink, Inc.
22927 286 272 TELEFONICA DE ARGENTINA
4814 270 255 China Telecom (Group)
3561 585 248 Cable & Wireless USA
27364 266 248 Armstrong Cable Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:13 /12:47
/13:92 /14:251 /15:464 /16:7379 /17:1636 /18:2952
/19:8309 /20:8210 /21:5922 /22:8847 /23:10647 /24:68727
/25:158 /26:193 /27:52 /28:26 /29:13 /30:44
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 592 933 Supernet, Inc.
18566 534 540 Covad Communications
702 485 779 UUNET - Commercial IP service
701 476 1596 UUNET Technologies, Inc.
7018 476 1360 AT&T
690 444 495 Merit Network
7843 392 645 Adelphia Corp.
7066 384 485 Virginia Polytechnic Institut
1239 367 967 Sprint
6198 359 455 BellSouth Network Solutions,
6197 355 476 BellSouth Network Solutions,
11305 318 341 Interland Incorporated
2386 304 508 AT&T Data Communications Serv
20115 299 426 Charter Communications
22927 285 286 TELEFONICA DE ARGENTINA
6140 281 294 ImpSat
1 272 772 GENUITY
27364 259 266 Armstrong Cable Services
3215 243 320 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:677 13:1 15:4 17:3 20:9
24:801 25:1 32:86 38:63 40:18 44:2
55:1 57:17 61:407 62:519 63:1883 64:1557
65:1916 66:2357 67:161 68:338 69:102 80:329
81:128 128:150 129:180 130:45 131:135 132:11
133:2 134:151 135:4 136:113 137:110 138:105
139:66 140:118 141:91 142:95 143:46 144:113
145:16 146:269 147:93 148:277 149:71 150:46
151:68 152:246 153:57 154:2 155:107 156:46
157:44 158:124 159:141 160:36 161:75 162:129
163:78 164:309 165:134 166:75 167:328 168:396
169:56 170:316 171:7 192:5349 193:2414 194:1985
195:994 196:464 198:3558 199:3386 200:2912 202:3673
203:5077 204:3066 205:2012 206:2426 207:2424 208:2665
209:2883 210:750 211:339 212:983 213:776 214:20
215:21 216:3301 217:635 218:85 219:13 220:54
End of report
-----
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