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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76730
Unique aggregates announced to Internet: 57586
Total ASes present in the Internet Routing Table: 14524
Origin-only ASes present in the Internet Routing Table: 12600
Origin ASes announcing only one prefix: 5701
Transit ASes present in the Internet Routing Table: 1924
Transit-only ASes present in the Internet Routing Table: 68
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 24
Number of addresses announced to Internet: 1172687949
Equivalent to 69 /8s, 229 /16s and 204 /24s
Percentage of available address space announced: 31.6
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55912
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19727
Total APNIC prefixes after maximum aggregation: 11685
Prefixes being announced from the APNIC address blocks: 18240
Unique aggregates announced from the APNIC address blocks: 11141
APNIC Region origin ASes present in the Internet Routing Table: 1690
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 85780640
Equivalent to 5 /8s, 28 /16s and 232 /24s
Percentage of available APNIC address space announced: 56.4
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: 74333
Total ARIN prefixes after maximum aggregation: 47546
Prefixes being announced from the ARIN address blocks: 52629
Unique aggregates announced from the ARIN address blocks: 16175
ARIN Region origin ASes present in the Internet Routing Table: 8114
ARIN Region origin ASes announcing only one prefix: 2740
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186572224
Equivalent to 11 /8s, 30 /16s and 221 /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: 20710
Total RIPE prefixes after maximum aggregation: 15312
Prefixes being announced from the RIPE address blocks: 17332
Unique aggregates announced from the RIPE address blocks: 11589
RIPE Region origin ASes present in the Internet Routing Table: 4324
RIPE Region origin ASes announcing only one prefix: 2361
RIPE Region transit ASes present in the Internet Routing Table: 782
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123063488
Equivalent to 7 /8s, 85 /16s and 204 /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: 5220
Total LACNIC prefixes after maximum aggregation: 2187
Prefixes being announced from the LACNIC address blocks: 4568
Unique aggregates announced from the LACNIC address blocks: 2974
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 86
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: 11927808
Equivalent to 0 /8s, 182 /16s and 1 /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
703 408 364 319 UUNET
2907 391 1975 367 SINET Japan
17557 336 24 133 Pakistan Telecom
2764 333 340 303 connect.com.au pty ltd
7474 300 276 209 Optus Communications Pty Ltd
4134 277 2212 79 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 236 711 205 DACOM Corporation
4755 224 101 70 Videsh Sanchar Nigam Ltd. Aut
9583 208 33 13 Satyam Infoway Ltd.,
4766 190 1463 141 Korea Internet Exchange for "
9443 183 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 126 732 120 TTnet
4739 124 57 113 Commerical Internet eXchange
7657 122 25 84 The Internet Group Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1596 8984 1173 UUNET Technologies, Inc.
7018 1435 7123 972 AT&T
3908 1213 1601 495 Supernet, Inc.
1239 965 3142 676 Sprint
852 684 1107 445 Telus Advanced Communications
1 668 8092 434 GENUITY
7843 582 399 232 Adelphia Corp.
7046 550 818 252 UUNET Technologies, Inc.
4323 529 472 168 Time Warner Communications, I
209 528 2103 336 Qwest
690 498 73 308 Merit Network
7066 493 204 253 Virginia Polytechnic Institut
6197 470 555 110 BellSouth Network Solutions,
705 460 151 207 UUNET Technologies, Inc.
18566 455 114 7 Covad Communications
3561 436 2227 372 Cable & Wireless USA
2386 434 469 240 AT&T Data Communications Serv
6198 424 187 199 BellSouth Network Solutions,
4355 409 309 114 EarthLink, Inc.
15290 389 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 799 2268 663 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 123 174 114 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 229 36 53 Telecom Argentina Stet-France
8151 208 317 115 UniNet S.A. de C.V.
6503 157 191 108 AVANTEL, S.A.
11172 157 82 33 Servicios Alestra S.A de C.V
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
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
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 1213 718 Supernet, Inc.
7018 1435 463 AT&T
18566 455 448 Covad Communications
4323 529 361 Time Warner Communications, I
6197 470 360 BellSouth Network Solutions,
7843 582 350 Adelphia Corp.
1221 1132 304 Telstra Pty Ltd
11492 303 302 Cable One
7046 550 298 UUNET Technologies, Inc.
6347 377 298 SAVVIS Communications Corpora
4355 409 295 EarthLink, Inc.
1239 965 289 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 336 278 USDA
705 460 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 352 241 Reseau Interordinateurs Scien
7066 493 240 Virginia Polytechnic Institut
852 684 239 Telus Advanced Communications
1 668 234 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
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 /14:233 /15:424 /16:7152 /17:1536 /18:2830
/19:7984 /20:7834 /21:5677 /22:8641 /23:10351 /24:66424
/25:165 /26:177 /27:99 /28:87 /29:66 /30:100
/31:2 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 790 1213 Supernet, Inc.
7018 517 1435 AT&T
702 495 799 UUNET - Commercial IP service
18566 450 455 Covad Communications
690 447 498 Merit Network
701 424 1596 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
1239 357 965 Sprint
7843 354 582 Adelphia Corp.
6197 349 470 BellSouth Network Solutions,
6198 337 424 BellSouth Network Solutions,
11492 302 303 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 274 286 ImpSat
7046 252 550 UUNET Technologies, Inc.
3215 237 311 France Telecom Transpac
2386 236 434 AT&T Data Communications Serv
20115 231 352 Charter Communications
4355 230 409 EarthLink, Inc.
7303 228 229 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:636 13:1 15:6 17:2 20:8 24:788
25:1 32:82 34:1 38:100 40:19 44:1
55:1 57:15 61:472 62:497 63:1907 64:1382
65:1849 66:1389 67:208 68:245 69:42 80:316
81:84 128:141 129:185 130:38 131:73 132:11
133:4 134:144 135:4 136:194 137:113 138:102
139:70 140:132 141:104 142:95 143:45 144:69
145:17 146:263 147:85 148:261 149:75 150:42
151:96 152:254 153:43 154:3 155:105 156:42
157:44 158:122 159:137 160:32 161:54 162:135
163:80 164:275 165:142 166:86 167:305 168:393
169:58 170:294 171:8 192:5356 193:2408 194:1990
195:926 196:463 198:3603 199:3040 200:2846 202:3649
203:5048 204:3027 205:2097 206:2387 207:2456 208:2709
209:2801 210:708 211:321 212:941 213:715 214:22
215:21 216:3227 217:563 218:73
End of report
