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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 01 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76643
Unique aggregates announced to Internet: 57506
Total ASes present in the Internet Routing Table: 14526
Origin-only ASes present in the Internet Routing Table: 12621
Origin ASes announcing only one prefix: 5694
Transit ASes present in the Internet Routing Table: 1905
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: 24
Number of addresses announced to Internet: 1179969353
Equivalent to 70 /8s, 84 /16s and 231 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55719
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19979
Total APNIC prefixes after maximum aggregation: 11808
Prefixes being announced from the APNIC address blocks: 18477
Unique aggregates announced from the APNIC address blocks: 11276
APNIC Region origin ASes present in the Internet Routing Table: 1714
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 90036384
Equivalent to 5 /8s, 93 /16s and 216 /24s
Percentage of available APNIC address space announced: 59.2
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: 74101
Total ARIN prefixes after maximum aggregation: 47323
Prefixes being announced from the ARIN address blocks: 52528
Unique aggregates announced from the ARIN address blocks: 16034
ARIN Region origin ASes present in the Internet Routing Table: 8094
ARIN Region origin ASes announcing only one prefix: 2725
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 189065920
Equivalent to 11 /8s, 68 /16s and 234 /24s
Percentage of available ARIN address space announced: 70.4
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: 20701
Total RIPE prefixes after maximum aggregation: 15326
Prefixes being announced from the RIPE address blocks: 17321
Unique aggregates announced from the RIPE address blocks: 11548
RIPE Region origin ASes present in the Internet Routing Table: 4322
RIPE Region origin ASes announcing only one prefix: 2362
RIPE Region transit ASes present in the Internet Routing Table: 781
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122980032
Equivalent to 7 /8s, 84 /16s and 134 /24s
Percentage of available RIPE address space announced: 73.3
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: 5209
Total LACNIC prefixes after maximum aggregation: 2186
Prefixes being announced from the LACNIC address blocks: 4556
Unique aggregates announced from the LACNIC address blocks: 2969
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 83
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: 14
Number of LACNIC addresses announced to Internet: 11948288
Equivalent to 0 /8s, 182 /16s and 81 /24s
Percentage of available LACNIC address space announced: 71.2
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 1127 1184 821 Telstra Pty Ltd
703 408 368 320 UUNET
2907 389 1975 365 SINET Japan
2764 333 340 303 connect.com.au pty ltd
17557 330 24 130 Pakistan Telecom
7474 301 276 211 Optus Communications Pty Ltd
4134 277 2212 79 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 242 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 235 709 204 DACOM Corporation
9583 207 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 130 8 18 TATA ISP
9768 130 384 64 Korea Telecom
9800 130 189 32 CHINA UNICOM
4716 129 737 123 TTnet
4739 123 57 112 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 1604 8999 1182 UUNET Technologies, Inc.
7018 1428 7108 966 AT&T
3908 1193 1604 502 Supernet, Inc.
1239 960 3143 673 Sprint
852 683 1124 447 Telus Advanced Communications
1 667 8077 434 GENUITY
7843 582 400 229 Adelphia Corp.
7046 551 826 252 UUNET Technologies, Inc.
4323 529 472 168 Time Warner Communications, I
209 527 2103 335 Qwest
690 505 74 311 Merit Network
7066 493 204 253 Virginia Polytechnic Institut
6197 472 555 110 BellSouth Network Solutions,
705 456 151 206 UUNET Technologies, Inc.
18566 451 114 7 Covad Communications
2386 437 469 230 AT&T Data Communications Serv
6198 423 185 199 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
15290 394 215 177 AT&T Canada IES
3549 393 707 291 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 804 2301 668 UUNET - Commercial IP service
3215 311 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 265 1996 228 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 214 400 199 SWIPnet Swedish IP Network
5515 213 783 174 Sonera Solution Autonomous Sy
719 205 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
5400 160 69 97 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 123 18 30 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 119 1299 109 BTnet UK Regional network
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 177 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 287 98 103 ImpSat
7303 226 36 54 Telecom Argentina Stet-France
8151 207 333 113 UniNet S.A. de C.V.
11172 157 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 105 7 31 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 71 27 36 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
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 1193 691 Supernet, Inc.
7018 1428 462 AT&T
18566 451 444 Covad Communications
6197 472 362 BellSouth Network Solutions,
4323 529 361 Time Warner Communications, I
7843 582 353 Adelphia Corp.
1221 1127 306 Telstra Pty Ltd
7046 551 299 UUNET Technologies, Inc.
11492 300 299 Cable One
6347 377 298 SAVVIS Communications Corpora
4355 410 295 EarthLink, Inc.
1239 960 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 329 271 USDA
705 456 250 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 351 241 Reseau Interordinateurs Scien
7066 493 240 Virginia Polytechnic Institut
852 683 236 Telus Advanced Communications
1 667 233 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 /8:18 /9:3 /10:8 /11:12 /12:44
/13:87 /14:232 /15:428 /16:7211 /17:1551 /18:2845
/19:8037 /20:7906 /21:5687 /22:8640 /23:10336 /24:66240
/25:161 /26:178 /27:97 /28:77 /29:60 /30:96
/31:2 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1193 Supernet, Inc.
7018 510 1428 AT&T
702 496 804 UUNET - Commercial IP service
690 454 505 Merit Network
18566 446 451 Covad Communications
701 425 1604 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
7843 354 582 Adelphia Corp.
1239 353 960 Sprint
6197 351 472 BellSouth Network Solutions,
6198 337 423 BellSouth Network Solutions,
11492 299 300 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 275 287 ImpSat
7046 252 551 UUNET Technologies, Inc.
2386 239 437 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
20115 231 352 Charter Communications
4355 230 410 EarthLink, Inc.
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:638 13:1 15:6 17:2 20:8 24:787
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:471 62:492 63:1905 64:1389
65:1818 66:1404 67:205 68:239 69:36 80:319
81:83 128:130 129:185 130:38 131:73 132:11
133:4 134:143 135:4 136:194 137:112 138:101
139:70 140:121 141:103 142:98 143:45 144:73
145:16 146:262 147:85 148:261 149:75 150:42
151:95 152:254 153:43 154:3 155:104 156:41
157:45 158:120 159:136 160:29 161:57 162:135
163:81 164:275 165:142 166:84 167:304 168:392
169:58 170:288 171:8 192:5360 193:2417 194:1992
195:908 196:460 198:3596 199:3030 200:2840 202:3650
203:5049 204:3040 205:2099 206:2381 207:2452 208:2706
209:2763 210:702 211:318 212:930 213:713 214:22
215:22 216:3233 217:569 218:73 219:14
End of report
