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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 03 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121915
Prefixes after maximum aggregation: 77565
Unique aggregates announced to Internet: 58111
Total ASes present in the Internet Routing Table: 14738
Origin-only ASes present in the Internet Routing Table: 12793
Origin ASes announcing only one prefix: 5779
Transit ASes present in the Internet Routing Table: 1945
Transit-only ASes present in the Internet Routing Table: 63
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1199227021
Equivalent to 71 /8s, 122 /16s and 192 /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: 56987
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20440
Total APNIC prefixes after maximum aggregation: 12028
Prefixes being announced from the APNIC address blocks: 18968
Unique aggregates announced from the APNIC address blocks: 11657
APNIC Region origin ASes present in the Internet Routing Table: 1742
APNIC Region origin ASes announcing only one prefix: 520
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: 106694376
Equivalent to 6 /8s, 92 /16s and 6 /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: 74965
Total ARIN prefixes after maximum aggregation: 47759
Prefixes being announced from the ARIN address blocks: 53251
Unique aggregates announced from the ARIN address blocks: 16666
ARIN Region origin ASes present in the Internet Routing Table: 8200
ARIN Region origin ASes announcing only one prefix: 2768
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187198336
Equivalent to 11 /8s, 40 /16s and 107 /24s
Percentage of available ARIN address space announced: 69.7
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: 21195
Total RIPE prefixes after maximum aggregation: 15567
Prefixes being announced from the RIPE address blocks: 17735
Unique aggregates announced from the RIPE address blocks: 11054
RIPE Region origin ASes present in the Internet Routing Table: 4406
RIPE Region origin ASes announcing only one prefix: 2405
RIPE Region transit ASes present in the Internet Routing Table: 789
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127449600
Equivalent to 7 /8s, 152 /16s and 186 /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: 5305
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 4667
Unique aggregates announced from the LACNIC address blocks: 3030
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12184576
Equivalent to 0 /8s, 185 /16s and 236 /24s
Percentage of available LACNIC address space announced: 72.6
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 1114 1119 809 Telstra Pty Ltd
703 409 368 315 UUNET
2907 388 1960 367 SINET Japan
17557 349 25 131 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 233 118 74 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
4766 208 2074 155 Korea Internet Exchange for "
9583 204 33 13 Satyam Infoway Ltd.,
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 1602 8872 1138 UUNET Technologies, Inc.
7018 1384 7151 959 AT&T
3908 1243 1589 484 Supernet, Inc.
1239 978 3122 691 Sprint
1 648 8086 433 GENUITY
852 600 1107 444 Telus Advanced Communications
7843 560 405 198 Adelphia Corp.
7046 559 826 243 UUNET Technologies, Inc.
4323 536 473 168 Time Warner Communications, I
4151 530 691 58 USDA
209 529 2092 336 Qwest
3561 500 2328 340 Cable & Wireless USA
690 499 73 309 Merit Network
6197 492 555 113 BellSouth Network Solutions,
18566 492 114 7 Covad Communications
7066 490 204 254 Virginia Polytechnic Institut
2386 478 477 249 AT&T Data Communications Serv
705 450 165 196 UUNET Technologies, Inc.
6198 438 195 202 BellSouth Network Solutions,
4355 403 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2250 653 UUNET - Commercial IP service
3215 315 819 174 France Telecom Transpac
3301 314 1142 302 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
719 201 307 127 LANLINK autonomous system
5400 198 86 98 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 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 284 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 325 116 UniNet S.A. de C.V.
11172 161 66 33 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
11992 75 8 33 Integrated Systems
6147 74 62 20 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 21 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 67 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
11830 61 4 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1243 759 Supernet, Inc.
18566 492 485 Covad Communications
4151 530 472 USDA
7018 1384 425 AT&T
6197 492 379 BellSouth Network Solutions,
4323 536 368 Time Warner Communications, I
7843 560 362 Adelphia Corp.
7046 559 316 UUNET Technologies, Inc.
11492 311 308 Cable One
1221 1114 305 Telstra Pty Ltd
4355 403 291 EarthLink, Inc.
6347 369 291 SAVVIS Communications Corpora
1239 978 287 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 438 236 BellSouth Network Solutions,
2386 478 229 AT&T Data Communications Serv
22291 243 224 Charter Communications
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
192.153.136.0/21 568 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
/13:92 /14:238 /15:444 /16:7351 /17:1605 /18:2895
/19:8175 /20:8103 /21:5808 /22:8817 /23:10541 /24:67038
/25:166 /26:188 /27:108 /28:81 /29:61 /30:59
/31:4 /32:54
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 814 1243 Supernet, Inc.
702 493 790 UUNET - Commercial IP service
7018 487 1384 AT&T
18566 487 492 Covad Communications
701 474 1602 UUNET Technologies, Inc.
690 448 499 Merit Network
7066 389 490 Virginia Polytechnic Institut
1239 365 978 Sprint
6197 361 492 BellSouth Network Solutions,
6198 348 438 BellSouth Network Solutions,
7843 326 560 Adelphia Corp.
11492 310 311 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 274 478 AT&T Data Communications Serv
6140 271 284 ImpSat
7046 263 559 UUNET Technologies, Inc.
20115 256 384 Charter Communications
3215 240 315 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 230 403 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:655 13:1 15:4 17:2 20:9 24:840
25:1 32:83 34:1 38:61 40:18 44:2
55:1 57:16 61:451 62:508 63:1906 64:1406
65:1891 66:1466 67:215 68:284 69:53 80:330
81:96 128:144 129:189 130:40 131:81 132:11
133:2 134:145 135:4 136:121 137:117 138:106
139:74 140:132 141:121 142:94 143:47 144:117
145:18 146:264 147:85 148:252 149:73 150:43
151:110 152:253 153:51 154:3 155:107 156:42
157:41 158:124 159:141 160:34 161:58 162:135
163:83 164:307 165:140 166:80 167:321 168:387
169:54 170:306 171:8 192:5291 193:2429 194:2011
195:973 196:471 198:3591 199:3210 200:2889 202:3599
203:5096 204:3045 205:2036 206:2402 207:2387 208:2683
209:2779 210:727 211:336 212:965 213:744 214:21
215:21 216:3219 217:602 218:80 219:14 220:52
End of report
