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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 04 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76639
Unique aggregates announced to Internet: 57588
Total ASes present in the Internet Routing Table: 14530
Origin-only ASes present in the Internet Routing Table: 12615
Origin ASes announcing only one prefix: 5707
Transit ASes present in the Internet Routing Table: 1915
Transit-only ASes present in the Internet Routing Table: 67
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: 25
Number of addresses announced to Internet: 1176416589
Equivalent to 70 /8s, 30 /16s and 177 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 57.7
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: 19972
Total APNIC prefixes after maximum aggregation: 11754
Prefixes being announced from the APNIC address blocks: 18479
Unique aggregates announced from the APNIC address blocks: 11234
APNIC Region origin ASes present in the Internet Routing Table: 1707
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 89316256
Equivalent to 5 /8s, 82 /16s and 219 /24s
Percentage of available APNIC address space announced: 58.7
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: 74136
Total ARIN prefixes after maximum aggregation: 47385
Prefixes being announced from the ARIN address blocks: 52522
Unique aggregates announced from the ARIN address blocks: 16159
ARIN Region origin ASes present in the Internet Routing Table: 8104
ARIN Region origin ASes announcing only one prefix: 2735
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: 186455488
Equivalent to 11 /8s, 29 /16s and 21 /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: 20673
Total RIPE prefixes after maximum aggregation: 15312
Prefixes being announced from the RIPE address blocks: 17302
Unique aggregates announced from the RIPE address blocks: 11543
RIPE Region origin ASes present in the Internet Routing Table: 4325
RIPE Region origin ASes announcing only one prefix: 2364
RIPE Region transit ASes present in the Internet Routing Table: 778
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122978240
Equivalent to 7 /8s, 84 /16s and 127 /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: 2188
Prefixes being announced from the LACNIC address blocks: 4555
Unique aggregates announced from the LACNIC address blocks: 2962
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 72
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 1127 1184 823 Telstra Pty Ltd
703 410 368 321 UUNET
2907 391 1975 367 SINET Japan
2764 332 340 302 connect.com.au pty ltd
17557 332 24 132 Pakistan Telecom
7474 301 276 211 Optus Communications Pty Ltd
4134 276 2212 79 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 244 134 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 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 1600 8936 1178 UUNET Technologies, Inc.
7018 1431 7124 969 AT&T
3908 1193 1604 502 Supernet, Inc.
1239 961 3142 672 Sprint
852 696 1125 457 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
209 527 2103 335 Qwest
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 472 555 110 BellSouth Network Solutions,
705 457 151 207 UUNET Technologies, Inc.
18566 454 114 7 Covad Communications
2386 437 469 230 AT&T Data Communications Serv
3561 434 2227 371 Cable & Wireless USA
6198 423 187 199 BellSouth Network Solutions,
4355 411 313 115 EarthLink, Inc.
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 799 2300 665 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
719 205 306 130 LANLINK autonomous system
786 178 1874 178 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 152 42 145 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 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 102 177 81 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 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 71 306 42 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 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 1431 462 AT&T
18566 454 447 Covad Communications
4323 530 362 Time Warner Communications, I
6197 472 362 BellSouth Network Solutions,
7843 588 359 Adelphia Corp.
1221 1127 304 Telstra Pty Ltd
11492 302 301 Cable One
7046 551 299 UUNET Technologies, Inc.
6347 377 298 SAVVIS Communications Corpora
4355 411 296 EarthLink, Inc.
1239 961 289 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 330 271 USDA
705 457 250 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 351 241 Reseau Interordinateurs Scien
852 696 239 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
/13:87 /14:232 /15:428 /16:7200 /17:1549 /18:2845
/19:8013 /20:7878 /21:5680 /22:8652 /23:10330 /24:66271
/25:165 /26:178 /27:105 /28:87 /29:66 /30:100
/31:2 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1193 Supernet, Inc.
7018 512 1431 AT&T
702 493 799 UUNET - Commercial IP service
18566 449 454 Covad Communications
690 447 498 Merit Network
701 424 1600 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 360 588 Adelphia Corp.
1239 355 961 Sprint
6197 351 472 BellSouth Network Solutions,
6198 336 423 BellSouth Network Solutions,
11492 301 302 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
4355 231 411 EarthLink, Inc.
20115 231 352 Charter Communications
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 24:788
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:469 62:492 63:1884 64:1371
65:1834 66:1406 67:206 68:243 69:38 80:317
81:83 100:1 128:126 129:185 130:38 131:73
132:11 133:4 134:144 135:4 136:194 137:113
138:102 139:70 140:132 141:104 142:95 143:45
144:76 145:16 146:262 147:85 148:262 149:75
150:42 151:96 152:254 153:43 154:3 155:105
156:41 157:45 158:122 159:136 160:29 161:54
162:134 163:80 164:273 165:141 166:86 167:305
168:393 169:58 170:290 171:8 192:5352 193:2406
194:1994 195:908 196:458 198:3607 199:3035 200:2837
202:3672 203:5073 204:3024 205:2106 206:2386 207:2441
208:2701 209:2779 210:705 211:318 212:933 213:714
214:22 215:22 216:3226 217:568 218:72 219:13
End of report
