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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 28 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121927
Prefixes after maximum aggregation: 77477
Unique aggregates announced to Internet: 58082
Total ASes present in the Internet Routing Table: 14730
Origin-only ASes present in the Internet Routing Table: 12801
Origin ASes announcing only one prefix: 5774
Transit ASes present in the Internet Routing Table: 1929
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 20
Number of addresses announced to Internet: 1200020621
Equivalent to 71 /8s, 134 /16s and 220 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57021
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20463
Total APNIC prefixes after maximum aggregation: 12056
Prefixes being announced from the APNIC address blocks: 18982
Unique aggregates announced from the APNIC address blocks: 11657
APNIC Region origin ASes present in the Internet Routing Table: 1743
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106683880
Equivalent to 6 /8s, 91 /16s and 221 /24s
Percentage of available APNIC address space announced: 56.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75025
Total ARIN prefixes after maximum aggregation: 47680
Prefixes being announced from the ARIN address blocks: 53234
Unique aggregates announced from the ARIN address blocks: 16611
ARIN Region origin ASes present in the Internet Routing Table: 8196
ARIN Region origin ASes announcing only one prefix: 2768
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187856256
Equivalent to 11 /8s, 50 /16s and 117 /24s
Percentage of available ARIN address space announced: 70.0
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
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: 21126
Total RIPE prefixes after maximum aggregation: 15545
Prefixes being announced from the RIPE address blocks: 17658
Unique aggregates announced from the RIPE address blocks: 11063
RIPE Region origin ASes present in the Internet Routing Table: 4397
RIPE Region origin ASes announcing only one prefix: 2397
RIPE Region transit ASes present in the Internet Routing Table: 785
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127445504
Equivalent to 7 /8s, 152 /16s and 170 /24s
Percentage of available RIPE address space announced: 76.0
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: 5303
Total LACNIC prefixes after maximum aggregation: 2196
Prefixes being announced from the LACNIC address blocks: 4671
Unique aggregates announced from the LACNIC address blocks: 3035
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12088064
Equivalent to 0 /8s, 184 /16s and 115 /24s
Percentage of available LACNIC address space announced: 72.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1113 1119 808 Telstra Pty Ltd
703 410 368 316 UUNET
2907 388 1960 367 SINET Japan
17557 346 25 138 Pakistan Telecom
2764 325 341 293 connect.com.au pty ltd
7474 306 276 208 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 264 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 235 134 75 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 223 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 136 8 17 TATA ISP
4716 128 735 122 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1613 8888 1149 UUNET Technologies, Inc.
7018 1387 7151 958 AT&T
3908 1244 1590 485 Supernet, Inc.
1239 979 3138 692 Sprint
1 669 8087 435 GENUITY
852 600 1107 444 Telus Advanced Communications
7046 559 826 243 UUNET Technologies, Inc.
7843 554 405 197 Adelphia Corp.
4323 534 473 168 Time Warner Communications, I
4151 531 691 58 USDA
209 529 2092 335 Qwest
690 498 73 308 Merit Network
3561 498 2327 339 Cable & Wireless USA
18566 491 114 7 Covad Communications
7066 490 204 254 Virginia Polytechnic Institut
6197 483 554 110 BellSouth Network Solutions,
2386 478 477 249 AT&T Data Communications Serv
376 460 375 111 Reseau Interordinateurs Scien
705 450 165 196 UUNET Technologies, Inc.
6198 437 195 201 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2250 653 UUNET - Commercial IP service
3215 315 818 173 France Telecom Transpac
3301 315 1142 303 TeliaNet Sweden
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 202 307 129 LANLINK autonomous system
5400 197 70 97 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 42 149 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
8220 125 182 116 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1299 108 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 360 101 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 285 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 213 325 115 UniNet S.A. de C.V.
11172 160 66 32 Servicios Alestra S.A de C.V
6503 157 207 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 75 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
11992 69 7 30 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 62 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1244 759 Supernet, Inc.
18566 491 484 Covad Communications
4151 531 473 USDA
7018 1387 429 AT&T
6197 483 373 BellSouth Network Solutions,
4323 534 366 Time Warner Communications, I
7843 554 357 Adelphia Corp.
376 460 349 Reseau Interordinateurs Scien
7046 559 316 UUNET Technologies, Inc.
11492 309 308 Cable One
1221 1113 305 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 979 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
7066 490 236 Virginia Polytechnic Institut
6198 437 236 BellSouth Network Solutions,
1 669 234 GENUITY
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
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
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
192.44.0.0/19 702 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
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
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 /8:18 /9:3 /10:8 /11:12 /12:46
/13:93 /14:238 /15:445 /16:7353 /17:1598 /18:2900
/19:8169 /20:8092 /21:5812 /22:8818 /23:10536 /24:66934
/25:170 /26:185 /27:113 /28:88 /29:63 /30:133
/31:4 /32:96
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 815 1244 Supernet, Inc.
702 493 790 UUNET - Commercial IP service
7018 491 1387 AT&T
18566 486 491 Covad Communications
701 476 1613 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 389 490 Virginia Polytechnic Institut
1239 365 979 Sprint
6197 356 483 BellSouth Network Solutions,
6198 347 437 BellSouth Network Solutions,
7843 320 554 Adelphia Corp.
11492 308 309 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 274 478 AT&T Data Communications Serv
6140 272 285 ImpSat
7046 263 559 UUNET Technologies, Inc.
20115 257 383 Charter Communications
3215 240 315 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:653 13:1 15:4 17:2 20:9 24:837
25:1 32:83 34:1 38:57 40:18 44:2
55:1 57:16 61:453 62:508 63:1904 64:1391
65:1904 66:1463 67:214 68:280 69:52 80:319
81:99 128:144 129:189 130:40 131:81 132:13
133:2 134:145 135:4 136:121 137:117 138:106
139:74 140:132 141:123 142:94 143:46 144:111
145:18 146:264 147:85 148:267 149:73 150:44
151:110 152:252 153:51 154:3 155:107 156:42
157:41 158:124 159:142 160:34 161:58 162:135
163:84 164:269 165:140 166:80 167:317 168:387
169:54 170:306 171:8 192:5288 193:2422 194:1998
195:946 196:469 198:3598 199:3209 200:2895 202:3600
203:5097 204:3049 205:2027 206:2407 207:2386 208:2691
209:2761 210:737 211:336 212:958 213:745 214:21
215:21 216:3220 217:598 218:80 219:14 220:52
End of report
-----
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