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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 18 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120925
Prefixes after maximum aggregation: 77165
Unique aggregates announced to Internet: 57718
Total ASes present in the Internet Routing Table: 14642
Origin-only ASes present in the Internet Routing Table: 12706
Origin ASes announcing only one prefix: 5728
Transit ASes present in the Internet Routing Table: 1936
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: 14
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: 1196607245
Equivalent to 71 /8s, 82 /16s and 199 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56296
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20320
Total APNIC prefixes after maximum aggregation: 11944
Prefixes being announced from the APNIC address blocks: 18895
Unique aggregates announced from the APNIC address blocks: 11586
APNIC Region origin ASes present in the Internet Routing Table: 1728
APNIC Region origin ASes announcing only one prefix: 517
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: 106143648
Equivalent to 6 /8s, 83 /16s and 159 /24s
Percentage of available APNIC address space announced: 56.3
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: 74432
Total ARIN prefixes after maximum aggregation: 47564
Prefixes being announced from the ARIN address blocks: 52842
Unique aggregates announced from the ARIN address blocks: 16459
ARIN Region origin ASes present in the Internet Routing Table: 8157
ARIN Region origin ASes announcing only one prefix: 2753
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: 187092672
Equivalent to 11 /8s, 38 /16s and 206 /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: 20871
Total RIPE prefixes after maximum aggregation: 15436
Prefixes being announced from the RIPE address blocks: 17464
Unique aggregates announced from the RIPE address blocks: 10958
RIPE Region origin ASes present in the Internet Routing Table: 4366
RIPE Region origin ASes announcing only one prefix: 2376
RIPE Region transit ASes present in the Internet Routing Table: 791
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 125963648
Equivalent to 7 /8s, 130 /16s and 13 /24s
Percentage of available RIPE address space announced: 75.1
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: 5289
Total LACNIC prefixes after maximum aggregation: 2221
Prefixes being announced from the LACNIC address blocks: 4614
Unique aggregates announced from the LACNIC address blocks: 2987
LACNIC Region origin ASes present in the Internet Routing Table: 328
LACNIC Region origin ASes announcing only one prefix: 82
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: 12033536
Equivalent to 0 /8s, 183 /16s and 158 /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 1117 1150 816 Telstra Pty Ltd
703 414 368 324 UUNET
2907 394 1993 371 SINET Japan
17557 338 24 133 Pakistan Telecom
2764 328 340 295 connect.com.au pty ltd
4134 306 2661 102 Data Communications Bureau
7474 304 276 209 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 242 775 208 DACOM Corporation
4755 233 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 226 3509 24 XTAGE CORPORATION
9583 217 33 13 Satyam Infoway Ltd.,
4766 204 2071 151 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 149 9 14 World Net & Services Co., Ltd
9238 132 8 19 TATA ISP
4716 129 737 123 TTnet
9768 128 384 64 Korea Telecom
4739 127 57 115 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1568 8915 1156 UUNET Technologies, Inc.
7018 1421 7146 964 AT&T
3908 1214 1605 481 Supernet, Inc.
1239 966 3151 680 Sprint
1 665 8084 432 GENUITY
852 607 1107 446 Telus Advanced Communications
7843 571 401 213 Adelphia Corp.
7046 563 827 243 UUNET Technologies, Inc.
4323 531 472 168 Time Warner Communications, I
209 529 2108 336 Qwest
4151 521 691 59 USDA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
6197 476 555 113 BellSouth Network Solutions,
18566 474 113 6 Covad Communications
3561 466 2322 329 Cable & Wireless USA
705 447 165 194 UUNET Technologies, Inc.
2386 437 470 228 AT&T Data Communications Serv
6198 429 193 199 BellSouth Network Solutions,
4355 402 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 795 2281 661 UUNET - Commercial IP service
3301 312 1141 300 TeliaNet Sweden
3215 310 818 171 France Telecom Transpac
3320 264 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 215 385 199 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 188 781 162 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 150 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 122 174 113 COLT Internet - International
2856 120 1299 111 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 358 102 Song Networks
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 286 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 156 191 109 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 83 62 20 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 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 61 11 40 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 1214 733 Supernet, Inc.
18566 474 468 Covad Communications
4151 521 462 USDA
7018 1421 457 AT&T
4323 531 363 Time Warner Communications, I
6197 476 363 BellSouth Network Solutions,
7843 571 358 Adelphia Corp.
7046 563 320 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1117 301 Telstra Pty Ltd
4355 402 290 EarthLink, Inc.
6347 367 288 SAVVIS Communications Corpora
1239 966 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 447 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 665 233 GENUITY
6198 429 230 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
65520 PRIVATE 202.36.16.0/21 9889 Web InterNet, ISP
65520 PRIVATE 202.36.24.0/22 9889 Web InterNet, ISP
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 /8:18 /9:3 /10:8 /11:12 /12:44
/13:93 /14:240 /15:446 /16:7333 /17:1579 /18:2871
/19:8110 /20:8008 /21:5730 /22:8723 /23:10432 /24:66545
/25:168 /26:172 /27:98 /28:84 /29:58 /30:102
/31:2 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 792 1214 Supernet, Inc.
7018 523 1421 AT&T
702 491 795 UUNET - Commercial IP service
18566 469 474 Covad Communications
690 447 498 Merit Network
701 420 1568 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
1239 360 966 Sprint
6197 352 476 BellSouth Network Solutions,
7843 341 571 Adelphia Corp.
6198 337 429 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 274 286 ImpSat
7046 266 563 UUNET Technologies, Inc.
20115 240 363 Charter Communications
2386 237 437 AT&T Data Communications Serv
3215 236 310 France Telecom Transpac
7303 232 233 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:640 13:1 15:4 17:2 20:9 24:799
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:459 62:497 63:1905 64:1384
65:1863 66:1411 67:215 68:281 69:47 80:318
81:90 128:143 129:187 130:40 131:81 132:11
133:2 134:144 135:4 136:194 137:116 138:104
139:70 140:101 141:109 142:93 143:46 144:105
145:18 146:262 147:85 148:267 149:74 150:43
151:96 152:252 153:44 154:3 155:106 156:42
157:41 158:122 159:137 160:34 161:55 162:134
163:82 164:266 165:139 166:81 167:306 168:394
169:55 170:303 171:8 192:5283 193:2399 194:2002
195:949 196:457 198:3591 199:3194 200:2848 202:3646
203:5046 204:3017 205:2023 206:2400 207:2400 208:2689
209:2790 210:729 211:320 212:950 213:724 214:21
215:22 216:3230 217:589 218:77 219:14 220:48
End of report
