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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120803
Prefixes after maximum aggregation: 77095
Unique aggregates announced to Internet: 58373
Total ASes present in the Internet Routing Table: 14615
Origin-only ASes present in the Internet Routing Table: 12676
Origin ASes announcing only one prefix: 5723
Transit ASes present in the Internet Routing Table: 1939
Transit-only ASes present in the Internet Routing Table: 68
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: 1194109645
Equivalent to 71 /8s, 44 /16s and 170 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 56260
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20436
Total APNIC prefixes after maximum aggregation: 12020
Prefixes being announced from the APNIC address blocks: 18931
Unique aggregates announced from the APNIC address blocks: 11570
APNIC Region origin ASes present in the Internet Routing Table: 1728
APNIC Region origin ASes announcing only one prefix: 520
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: 105912352
Equivalent to 6 /8s, 80 /16s and 24 /24s
Percentage of available APNIC address space announced: 69.7
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: 74235
Total ARIN prefixes after maximum aggregation: 47469
Prefixes being announced from the ARIN address blocks: 52603
Unique aggregates announced from the ARIN address blocks: 16463
ARIN Region origin ASes present in the Internet Routing Table: 8140
ARIN Region origin ASes announcing only one prefix: 2749
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186851264
Equivalent to 11 /8s, 35 /16s and 31 /24s
Percentage of available ARIN address space announced: 69.6
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: 20842
Total RIPE prefixes after maximum aggregation: 15401
Prefixes being announced from the RIPE address blocks: 17468
Unique aggregates announced from the RIPE address blocks: 11641
RIPE Region origin ASes present in the Internet Routing Table: 4353
RIPE Region origin ASes announcing only one prefix: 2371
RIPE Region transit ASes present in the Internet Routing Table: 787
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123898560
Equivalent to 7 /8s, 98 /16s and 138 /24s
Percentage of available RIPE address space announced: 73.8
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: 5279
Total LACNIC prefixes after maximum aggregation: 2205
Prefixes being announced from the LACNIC address blocks: 4600
Unique aggregates announced from the LACNIC address blocks: 2983
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12021248
Equivalent to 0 /8s, 183 /16s and 110 /24s
Percentage of available LACNIC address space announced: 71.7
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 1123 1167 817 Telstra Pty Ltd
703 409 366 319 UUNET
2907 394 1993 371 SINET Japan
17557 339 24 130 Pakistan Telecom
2764 328 340 296 connect.com.au pty ltd
4134 306 2661 102 Data Communications Bureau
7474 304 276 211 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 242 775 208 DACOM Corporation
4755 232 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 226 3509 24 XTAGE CORPORATION
9583 215 33 13 Satyam Infoway Ltd.,
4766 205 2072 152 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 14 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
4716 129 737 123 TTnet
9768 129 384 64 Korea Telecom
4739 125 57 114 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1594 8918 1173 UUNET Technologies, Inc.
7018 1426 7126 965 AT&T
3908 1215 1605 482 Supernet, Inc.
1239 959 3148 672 Sprint
1 667 8093 432 GENUITY
852 607 1107 446 Telus Advanced Communications
7843 568 401 213 Adelphia Corp.
7046 566 827 243 UUNET Technologies, Inc.
4323 529 472 168 Time Warner Communications, I
209 528 2108 336 Qwest
4151 521 691 58 USDA
690 498 73 308 Merit Network
7066 489 204 254 Virginia Polytechnic Institut
6197 476 555 113 BellSouth Network Solutions,
18566 475 114 7 Covad Communications
3561 466 2322 329 Cable & Wireless USA
705 446 166 195 UUNET Technologies, Inc.
2386 439 470 230 AT&T Data Communications Serv
6198 432 193 199 BellSouth Network Solutions,
4355 406 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 797 2282 661 UUNET - Commercial IP service
3301 313 1141 301 TeliaNet Sweden
3215 311 818 172 France Telecom Transpac
3320 264 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 214 385 198 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 202 306 129 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 151 42 148 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 121 1299 111 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 358 101 Song Networks
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 285 98 104 ImpSat
7303 233 36 49 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 161 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 107 7 31 TVCABLE BOGOTA
6147 84 62 21 Telefonica Del Peru
1916 73 306 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
7984 65 11 41 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
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 1215 733 Supernet, Inc.
18566 475 468 Covad Communications
4151 521 463 USDA
7018 1426 461 AT&T
6197 476 363 BellSouth Network Solutions,
4323 529 361 Time Warner Communications, I
7843 568 355 Adelphia Corp.
7046 566 323 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1123 306 Telstra Pty Ltd
4355 406 294 EarthLink, Inc.
6347 369 290 SAVVIS Communications Corpora
1239 959 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 446 251 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
1 667 235 GENUITY
7066 489 235 Virginia Polytechnic Institut
6198 432 233 BellSouth Network Solutions,
22291 242 223 Charter Communications
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
/13:93 /14:240 /15:445 /16:7337 /17:1578 /18:2865
/19:8104 /20:8010 /21:5711 /22:8702 /23:10426 /24:66480
/25:168 /26:173 /27:97 /28:83 /29:58 /30:102
/31:2 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 792 1215 Supernet, Inc.
7018 522 1426 AT&T
702 492 797 UUNET - Commercial IP service
18566 470 475 Covad Communications
690 447 498 Merit Network
701 424 1594 UUNET Technologies, Inc.
7066 388 489 Virginia Polytechnic Institut
1239 359 959 Sprint
6197 352 476 BellSouth Network Solutions,
6198 340 432 BellSouth Network Solutions,
7843 338 568 Adelphia Corp.
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 273 285 ImpSat
7046 266 566 UUNET Technologies, Inc.
20115 240 363 Charter Communications
2386 239 439 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
4355 233 406 EarthLink, Inc.
7303 232 233 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:640 13:1 15:4 17:2 20:9 24:799
25:1 32:82 34:1 38:41 40:19 44:2
55:1 57:15 61:476 62:495 63:1901 64:1389
65:1857 66:1407 67:214 68:273 69:47 80:318
81:87 128:143 129:178 130:40 131:73 132:11
133:2 134:145 135:4 136:194 137:116 138:103
139:71 140:130 141:109 142:91 143:44 144:103
145:17 146:262 147:84 148:264 149:74 150:42
151:96 152:252 153:44 154:3 155:105 156:43
157:41 158:125 159:137 160:33 161:54 162:134
163:89 164:262 165:140 166:83 167:305 168:389
169:57 170:298 171:8 192:5334 193:2423 194:2000
195:942 196:457 198:3600 199:3212 200:2833 202:3647
203:5074 204:2989 205:2042 206:2322 207:2366 208:2685
209:2767 210:729 211:320 212:949 213:728 214:20
215:22 216:3214 217:585 218:79 219:14 220:48
End of report
