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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 09 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120538
Prefixes after maximum aggregation: 77003
Unique aggregates announced to Internet: 58160
Total ASes present in the Internet Routing Table: 14573
Origin-only ASes present in the Internet Routing Table: 12651
Origin ASes announcing only one prefix: 5714
Transit ASes present in the Internet Routing Table: 1922
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1192017229
Equivalent to 71 /8s, 12 /16s and 189 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 56066
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20327
Total APNIC prefixes after maximum aggregation: 11988
Prefixes being announced from the APNIC address blocks: 18844
Unique aggregates announced from the APNIC address blocks: 11549
APNIC Region origin ASes present in the Internet Routing Table: 1724
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 295
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 105110432
Equivalent to 6 /8s, 67 /16s and 219 /24s
Percentage of available APNIC address space announced: 69.1
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74207
Total ARIN prefixes after maximum aggregation: 47470
Prefixes being announced from the ARIN address blocks: 52636
Unique aggregates announced from the ARIN address blocks: 16274
ARIN Region origin ASes present in the Internet Routing Table: 8124
ARIN Region origin ASes announcing only one prefix: 2745
ARIN Region transit ASes present in the Internet Routing Table: 759
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186621888
Equivalent to 11 /8s, 31 /16s and 159 /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
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: 20769
Total RIPE prefixes after maximum aggregation: 15344
Prefixes being announced from the RIPE address blocks: 17394
Unique aggregates announced from the RIPE address blocks: 11611
RIPE Region origin ASes present in the Internet Routing Table: 4333
RIPE Region origin ASes announcing only one prefix: 2367
RIPE Region transit ASes present in the Internet Routing Table: 784
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123216832
Equivalent to 7 /8s, 88 /16s and 35 /24s
Percentage of available RIPE address space announced: 73.4
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
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: 5224
Total LACNIC prefixes after maximum aggregation: 2201
Prefixes being announced from the LACNIC address blocks: 4569
Unique aggregates announced from the LACNIC address blocks: 2961
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11969024
Equivalent to 0 /8s, 182 /16s and 162 /24s
Percentage of available LACNIC address space announced: 71.3
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 1126 1183 822 Telstra Pty Ltd
703 409 368 320 UUNET
2907 387 1975 366 SINET Japan
17557 337 24 129 Pakistan Telecom
2764 331 340 300 connect.com.au pty ltd
7474 302 276 210 Optus Communications Pty Ltd
4134 298 2505 97 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 250 134 78 Videsh Sanchar Nigam Ltd. Aut
3786 241 775 207 DACOM Corporation
17676 224 3477 26 XTAGE CORPORATION
9583 213 33 13 Satyam Infoway Ltd.,
4766 199 2071 148 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 13 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
4739 125 57 114 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1608 8936 1183 UUNET Technologies, Inc.
7018 1424 7125 965 AT&T
3908 1221 1602 492 Supernet, Inc.
1239 962 3141 676 Sprint
852 684 1107 446 Telus Advanced Communications
1 668 8092 433 GENUITY
7843 579 401 219 Adelphia Corp.
7046 576 820 253 UUNET Technologies, Inc.
209 532 2107 339 Qwest
4323 529 472 168 Time Warner Communications, I
690 498 73 308 Merit Network
7066 491 204 253 Virginia Polytechnic Institut
6197 474 555 113 BellSouth Network Solutions,
18566 459 114 7 Covad Communications
3561 446 2245 377 Cable & Wireless USA
2386 437 469 236 AT&T Data Communications Serv
705 436 150 187 UUNET Technologies, Inc.
6198 430 191 197 BellSouth Network Solutions,
4355 404 309 114 EarthLink, Inc.
15290 392 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 797 2266 661 UUNET - Commercial IP service
3215 312 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 261 1995 224 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 212 384 197 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 204 306 130 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5400 157 69 95 BT Ignite European Backbone
8708 150 42 147 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 123 174 114 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3246 118 378 115 Song Networks
3269 111 751 61 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 103 ImpSat
7303 233 36 54 Telecom Argentina Stet-France
8151 208 316 115 UniNet S.A. de C.V.
11172 159 82 33 Servicios Alestra S.A de C.V
6503 154 191 108 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 111 3 39 Red Universitaria Nacional
10620 106 7 32 TVCABLE BOGOTA
6147 79 62 21 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
8065 69 6 15 Empresas Publicas de Medellin
11992 69 7 30 Integrated Systems
7080 64 4 1 Electronica y Comunicaciones
7984 60 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1221 729 Supernet, Inc.
7018 1424 459 AT&T
18566 459 452 Covad Communications
4323 529 361 Time Warner Communications, I
6197 474 361 BellSouth Network Solutions,
7843 579 360 Adelphia Corp.
7046 576 323 UUNET Technologies, Inc.
11492 307 306 Cable One
1221 1126 304 Telstra Pty Ltd
4151 359 301 USDA
4355 404 290 EarthLink, Inc.
6347 368 289 SAVVIS Communications Corpora
1239 962 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 436 249 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
852 684 238 Telus Advanced Communications
7066 491 238 Virginia Polytechnic Institut
1 668 235 GENUITY
6198 430 233 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64520 PRIVATE 158.15.0.0/16 721 DLA Systems Automati
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
192.31.242.0/24 771 NASA Ames Research Center
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
192.139.62.0/24 6539 GT Group Telecom Services Cor
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 /8:17 /9:3 /10:8 /11:12 /12:44
/13:92 /14:241 /15:440 /16:7322 /17:1567 /18:2860
/19:8075 /20:7966 /21:5708 /22:8680 /23:10405 /24:66368
/25:171 /26:178 /27:94 /28:82 /29:58 /30:101
/31:2 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 798 1221 Supernet, Inc.
7018 517 1424 AT&T
702 494 797 UUNET - Commercial IP service
18566 454 459 Covad Communications
690 447 498 Merit Network
701 429 1608 UUNET Technologies, Inc.
7066 390 491 Virginia Polytechnic Institut
1239 353 962 Sprint
6197 350 474 BellSouth Network Solutions,
7843 349 579 Adelphia Corp.
6198 341 430 BellSouth Network Solutions,
11492 306 307 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 277 576 UUNET Technologies, Inc.
6140 272 284 ImpSat
2386 239 437 AT&T Data Communications Serv
3215 238 312 France Telecom Transpac
20115 236 357 Charter Communications
7303 232 233 Telecom Argentina Stet-France
4355 228 404 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:634 13:1 15:6 17:2 20:9 24:815
25:1 32:82 34:1 38:40 40:19 44:1
55:1 57:15 61:473 62:494 63:1891 64:1393
65:1853 66:1394 67:212 68:258 69:44 80:316
81:86 128:144 129:185 130:38 131:73 132:11
133:2 134:144 135:4 136:190 137:114 138:103
139:70 140:131 141:110 142:93 143:45 144:72
145:17 146:262 147:86 148:261 149:76 150:41
151:96 152:253 153:44 154:3 155:105 156:39
157:44 158:120 159:137 160:32 161:52 162:134
163:80 164:266 165:140 166:84 167:296 168:391
169:57 170:293 171:8 192:5347 193:2413 194:2002
195:931 196:454 198:3583 199:3058 200:2816 202:3633
203:5063 204:3016 205:2098 206:2390 207:2410 208:2706
209:2790 210:711 211:323 212:942 213:726 214:22
215:21 216:3213 217:574 218:76 219:18 220:45
End of report
