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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 05 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76722
Unique aggregates announced to Internet: 57820
Total ASes present in the Internet Routing Table: 14538
Origin-only ASes present in the Internet Routing Table: 12618
Origin ASes announcing only one prefix: 5704
Transit ASes present in the Internet Routing Table: 1920
Transit-only ASes present in the Internet Routing Table: 67
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: 25
Number of addresses announced to Internet: 1186498949
Equivalent to 70 /8s, 184 /16s and 137 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20158
Total APNIC prefixes after maximum aggregation: 11893
Prefixes being announced from the APNIC address blocks: 18670
Unique aggregates announced from the APNIC address blocks: 11481
APNIC Region origin ASes present in the Internet Routing Table: 1725
APNIC Region origin ASes announcing only one prefix: 531
APNIC Region transit ASes present in the Internet Routing Table: 294
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 100283296
Equivalent to 5 /8s, 250 /16s and 51 /24s
Percentage of available APNIC address space announced: 66.0
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: 74013
Total ARIN prefixes after maximum aggregation: 47374
Prefixes being announced from the ARIN address blocks: 52412
Unique aggregates announced from the ARIN address blocks: 16164
ARIN Region origin ASes present in the Internet Routing Table: 8103
ARIN Region origin ASes announcing only one prefix: 2733
ARIN Region transit ASes present in the Internet Routing Table: 762
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186153152
Equivalent to 11 /8s, 24 /16s and 120 /24s
Percentage of available ARIN address space announced: 69.3
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: 20589
Total RIPE prefixes after maximum aggregation: 15264
Prefixes being announced from the RIPE address blocks: 17236
Unique aggregates announced from the RIPE address blocks: 11525
RIPE Region origin ASes present in the Internet Routing Table: 4314
RIPE Region origin ASes announcing only one prefix: 2355
RIPE Region transit ASes present in the Internet Routing Table: 780
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122793408
Equivalent to 7 /8s, 81 /16s and 173 /24s
Percentage of available RIPE address space announced: 73.2
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: 5230
Total LACNIC prefixes after maximum aggregation: 2191
Prefixes being announced from the LACNIC address blocks: 4582
Unique aggregates announced from the LACNIC address blocks: 2977
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11929344
Equivalent to 0 /8s, 182 /16s and 7 /24s
Percentage of available LACNIC address space announced: 71.1
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 1132 1185 828 Telstra Pty Ltd
703 410 368 321 UUNET
2907 391 1975 367 SINET Japan
17557 336 24 133 Pakistan Telecom
2764 334 340 304 connect.com.au pty ltd
7474 301 276 210 Optus Communications Pty Ltd
4134 295 2405 94 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 242 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 236 711 205 DACOM Corporation
17676 213 3301 27 XTAGE CORPORATION
9583 208 33 13 Satyam Infoway Ltd.,
4766 190 1466 141 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
4765 148 9 13 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
9768 130 384 64 Korea Telecom
9800 130 189 32 CHINA UNICOM
4716 129 737 123 TTnet
4739 124 57 113 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1599 8936 1177 UUNET Technologies, Inc.
7018 1434 7124 971 AT&T
3908 1067 1599 486 Supernet, Inc.
1239 963 3142 674 Sprint
852 695 1125 456 Telus Advanced Communications
1 669 8093 435 GENUITY
7843 588 400 229 Adelphia Corp.
7046 551 826 252 UUNET Technologies, Inc.
4323 530 472 168 Time Warner Communications, I
209 526 2103 334 Qwest
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 470 555 110 BellSouth Network Solutions,
705 457 151 207 UUNET Technologies, Inc.
18566 451 114 7 Covad Communications
3561 436 2227 372 Cable & Wireless USA
2386 435 469 234 AT&T Data Communications Serv
6198 423 187 199 BellSouth Network Solutions,
4355 409 309 114 EarthLink, Inc.
15290 391 215 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 802 2300 667 UUNET - Commercial IP service
3301 312 1141 300 TeliaNet Sweden
3215 311 818 172 France Telecom Transpac
3320 261 1995 224 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 214 400 199 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 204 306 130 LANLINK autonomous system
786 178 1874 178 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 155 42 146 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 122 174 113 COLT Internet - International
2856 119 1299 109 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 286 98 103 ImpSat
7303 232 36 54 Telecom Argentina Stet-France
8151 209 333 115 UniNet S.A. de C.V.
11172 159 82 33 Servicios Alestra S.A de C.V
6503 156 191 107 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 104 7 34 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 71 286 43 Fundacao de Amparo a Pesquisa
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
11992 69 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
8065 68 6 15 Empresas Publicas de Medellin
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 1067 581 Supernet, Inc.
7018 1434 463 AT&T
18566 451 444 Covad Communications
4323 530 362 Time Warner Communications, I
6197 470 360 BellSouth Network Solutions,
7843 588 359 Adelphia Corp.
1221 1132 304 Telstra Pty Ltd
11492 303 302 Cable One
7046 551 299 UUNET Technologies, Inc.
6347 377 298 SAVVIS Communications Corpora
4355 409 295 EarthLink, Inc.
1239 963 289 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 329 271 USDA
705 457 250 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 351 241 Reseau Interordinateurs Scien
852 695 239 Telus Advanced Communications
7066 492 239 Virginia Polytechnic Institut
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
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
100.100.100.0/24 852 Telus Advanced Communications
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
/13:88 /14:236 /15:435 /16:7300 /17:1561 /18:2853
/19:8049 /20:7913 /21:5679 /22:8633 /23:10330 /24:66097
/25:165 /26:179 /27:101 /28:85 /29:66 /30:100
/31:2 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 650 1067 Supernet, Inc.
7018 515 1434 AT&T
702 496 802 UUNET - Commercial IP service
690 447 498 Merit Network
18566 446 451 Covad Communications
701 424 1599 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 360 588 Adelphia Corp.
1239 356 963 Sprint
6197 349 470 BellSouth Network Solutions,
6198 336 423 BellSouth Network Solutions,
11492 302 303 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 274 286 ImpSat
7046 252 551 UUNET Technologies, Inc.
2386 237 435 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
7303 231 232 Telecom Argentina Stet-France
20115 231 352 Charter Communications
4355 230 409 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:634 13:1 15:6 17:2 20:8 24:791
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:471 62:495 63:1848 64:1376
65:1808 66:1407 67:197 68:244 69:42 80:316
81:83 100:1 128:126 129:185 130:38 131:72
132:13 133:4 134:144 135:4 136:194 137:113
138:102 139:70 140:132 141:104 142:95 143:45
144:70 145:17 146:262 147:85 148:262 149:75
150:42 151:96 152:254 153:42 154:3 155:104
156:42 157:44 158:122 159:136 160:29 161:54
162:135 163:80 164:272 165:141 166:86 167:305
168:393 169:55 170:292 171:8 192:5340 193:2393
194:1960 195:901 196:458 198:3602 199:3035 200:2856
202:3635 203:5087 204:3017 205:2104 206:2392 207:2439
208:2704 209:2769 210:707 211:320 212:937 213:714
214:22 215:22 216:3193 217:564 218:73 219:18
End of report
