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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119851
Prefixes after maximum aggregation: 76633
Unique aggregates announced to Internet: 57808
Total ASes present in the Internet Routing Table: 14497
Origin-only ASes present in the Internet Routing Table: 12603
Origin ASes announcing only one prefix: 5667
Transit ASes present in the Internet Routing Table: 1894
Transit-only ASes present in the Internet Routing Table: 61
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: 26
Number of addresses announced to Internet: 1191844969
Equivalent to 71 /8s, 10 /16s and 28 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20262
Total APNIC prefixes after maximum aggregation: 11947
Prefixes being announced from the APNIC address blocks: 18765
Unique aggregates announced from the APNIC address blocks: 11463
APNIC Region origin ASes present in the Internet Routing Table: 1723
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104894368
Equivalent to 6 /8s, 64 /16s and 143 /24s
Percentage of available APNIC address space announced: 69.0
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: 73870
Total ARIN prefixes after maximum aggregation: 47236
Prefixes being announced from the ARIN address blocks: 52357
Unique aggregates announced from the ARIN address blocks: 16158
ARIN Region origin ASes present in the Internet Routing Table: 8086
ARIN Region origin ASes announcing only one prefix: 2714
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186060480
Equivalent to 11 /8s, 23 /16s and 14 /24s
Percentage of available ARIN address space announced: 69.3
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: 20527
Total RIPE prefixes after maximum aggregation: 15275
Prefixes being announced from the RIPE address blocks: 17144
Unique aggregates announced from the RIPE address blocks: 11510
RIPE Region origin ASes present in the Internet Routing Table: 4306
RIPE Region origin ASes announcing only one prefix: 2351
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: 122822336
Equivalent to 7 /8s, 82 /16s and 30 /24s
Percentage of available RIPE address space announced: 73.2
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: 5182
Total LACNIC prefixes after maximum aggregation: 2175
Prefixes being announced from the LACNIC address blocks: 4537
Unique aggregates announced from the LACNIC address blocks: 2983
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11932672
Equivalent to 0 /8s, 182 /16s and 20 /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 1113 1184 813 Telstra Pty Ltd
703 408 368 319 UUNET
2907 391 1975 367 SINET Japan
2764 332 339 303 connect.com.au pty ltd
17557 330 24 130 Pakistan Telecom
4134 301 2545 98 Data Communications Bureau
7474 298 277 208 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 245 134 76 Videsh Sanchar Nigam Ltd. Aut
3786 240 773 206 DACOM Corporation
17676 225 3493 26 XTAGE CORPORATION
9583 210 33 13 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 13 World Net & Services Co., Ltd
9238 130 8 18 TATA ISP
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
4713 122 1064 102 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1603 8999 1181 UUNET Technologies, Inc.
7018 1441 7108 967 AT&T
3908 1187 1619 499 Supernet, Inc.
1239 961 3143 674 Sprint
852 682 1124 447 Telus Advanced Communications
1 667 8076 433 GENUITY
7843 592 400 225 Adelphia Corp.
7046 552 826 253 UUNET Technologies, Inc.
4323 528 472 168 Time Warner Communications, I
209 525 2103 334 Qwest
690 509 74 315 Merit Network
7066 491 204 253 Virginia Polytechnic Institut
6197 465 554 107 BellSouth Network Solutions,
18566 449 114 7 Covad Communications
705 437 150 191 UUNET Technologies, Inc.
2386 428 468 231 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
15290 393 215 176 AT&T Canada IES
3549 392 691 291 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 806 2301 670 UUNET - Commercial IP service
3215 311 818 172 France Telecom Transpac
3301 311 1141 298 TeliaNet Sweden
3320 254 1995 227 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 173 306 130 LANLINK autonomous system
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
2856 130 1302 117 BTnet UK Regional network
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
5511 105 193 83 France Telecom
3233 103 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 319 98 104 ImpSat
7303 226 36 54 Telecom Argentina Stet-France
8151 208 333 114 UniNet S.A. de C.V.
6503 156 191 107 AVANTEL, S.A.
11172 156 81 32 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 112 3 41 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 72 27 37 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 69 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 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 1187 688 Supernet, Inc.
7018 1441 474 AT&T
18566 449 442 Covad Communications
7843 592 367 Adelphia Corp.
4323 528 360 Time Warner Communications, I
6197 465 358 BellSouth Network Solutions,
1221 1113 300 Telstra Pty Ltd
7046 552 299 UUNET Technologies, Inc.
11492 300 299 Cable One
4355 410 295 EarthLink, Inc.
6347 375 295 SAVVIS Communications Corpora
1239 961 287 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 437 246 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 350 241 Reseau Interordinateurs Scien
7066 491 238 Virginia Polytechnic Institut
852 682 235 Telus Advanced Communications
1 667 234 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
172.0.193.128/26 3549 Global Crossing
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
192.140.0.0/16 5511 France Telecom
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
/13:91 /14:240 /15:442 /16:7331 /17:1572 /18:2852
/19:8040 /20:7910 /21:5688 /22:8593 /23:10307 /24:65995
/25:162 /26:177 /27:91 /28:76 /29:60 /30:95
/31:2 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1187 Supernet, Inc.
7018 521 1441 AT&T
702 498 806 UUNET - Commercial IP service
690 458 509 Merit Network
18566 444 449 Covad Communications
701 425 1603 UUNET Technologies, Inc.
7066 390 491 Virginia Polytechnic Institut
7843 363 592 Adelphia Corp.
1239 354 961 Sprint
6197 344 465 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 307 319 ImpSat
11492 299 300 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 252 552 UUNET Technologies, Inc.
3215 237 311 France Telecom Transpac
2386 231 428 AT&T Data Communications Serv
4355 230 410 EarthLink, Inc.
20115 230 351 Charter Communications
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:635 13:1 15:6 17:2 20:7 24:793
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:450 62:486 63:1888 64:1391
65:1806 66:1398 67:206 68:235 69:36 80:314
81:78 128:130 129:185 130:22 131:73 132:11
133:4 134:144 135:6 136:191 137:112 138:102
139:68 140:121 141:103 142:98 143:45 144:75
145:16 146:264 147:85 148:265 149:75 150:42
151:94 152:255 153:43 154:7 155:105 156:41
157:48 158:120 159:136 160:29 161:56 162:135
163:80 164:273 165:139 166:86 167:303 168:379
169:56 170:288 171:8 192:5356 193:2385 194:1957
195:909 196:456 198:3595 199:3029 200:2835 202:3650
203:5053 204:3027 205:2099 206:2360 207:2430 208:2687
209:2761 210:705 211:320 212:934 213:708 214:19
215:22 216:3217 217:536 218:75 219:18 220:44
End of report
