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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120662
Prefixes after maximum aggregation: 77018
Unique aggregates announced to Internet: 58106
Total ASes present in the Internet Routing Table: 14588
Origin-only ASes present in the Internet Routing Table: 12653
Origin ASes announcing only one prefix: 5722
Transit ASes present in the Internet Routing Table: 1935
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: 22
Number of addresses announced to Internet: 1192787789
Equivalent to 71 /8s, 24 /16s and 127 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 56152
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20310
Total APNIC prefixes after maximum aggregation: 11987
Prefixes being announced from the APNIC address blocks: 18804
Unique aggregates announced from the APNIC address blocks: 11528
APNIC Region origin ASes present in the Internet Routing Table: 1723
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 299
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 105413280
Equivalent to 6 /8s, 72 /16s and 122 /24s
Percentage of available APNIC address space announced: 69.3
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74321
Total ARIN prefixes after maximum aggregation: 47492
Prefixes being announced from the ARIN address blocks: 52721
Unique aggregates announced from the ARIN address blocks: 16279
ARIN Region origin ASes present in the Internet Routing Table: 8134
ARIN Region origin ASes announcing only one prefix: 2752
ARIN Region transit ASes present in the Internet Routing Table: 764
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186628544
Equivalent to 11 /8s, 31 /16s and 185 /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: 20788
Total RIPE prefixes after maximum aggregation: 15352
Prefixes being announced from the RIPE address blocks: 17405
Unique aggregates announced from the RIPE address blocks: 11547
RIPE Region origin ASes present in the Internet Routing Table: 4340
RIPE Region origin ASes announcing only one prefix: 2368
RIPE Region transit ASes present in the Internet Routing Table: 787
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123381184
Equivalent to 7 /8s, 90 /16s and 165 /24s
Percentage of available RIPE address space announced: 73.5
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: 5232
Total LACNIC prefixes after maximum aggregation: 2187
Prefixes being announced from the LACNIC address blocks: 4576
Unique aggregates announced from the LACNIC address blocks: 2968
LACNIC Region origin ASes present in the Internet Routing Table: 326
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11933440
Equivalent to 0 /8s, 182 /16s and 23 /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 1122 1183 819 Telstra Pty Ltd
703 408 368 319 UUNET
2907 388 1975 367 SINET Japan
17557 336 24 133 Pakistan Telecom
2764 326 340 294 connect.com.au pty ltd
4134 303 2567 102 Data Communications Bureau
7474 302 276 210 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 241 775 207 DACOM Corporation
4755 241 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 225 3493 26 XTAGE CORPORATION
9583 213 33 13 Satyam Infoway Ltd.,
4766 202 2072 149 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 147 9 13 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
4716 129 737 123 TTnet
9768 129 384 64 Korea Telecom
4739 125 57 114 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1607 8936 1182 UUNET Technologies, Inc.
7018 1425 7125 967 AT&T
3908 1221 1602 492 Supernet, Inc.
1239 957 3141 672 Sprint
852 677 1107 444 Telus Advanced Communications
1 666 8092 432 GENUITY
7843 569 401 225 Adelphia Corp.
7046 562 819 241 UUNET Technologies, Inc.
209 532 2107 339 Qwest
4323 529 472 168 Time Warner Communications, I
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 475 555 113 BellSouth Network Solutions,
3561 462 2322 327 Cable & Wireless USA
18566 460 114 7 Covad Communications
705 440 150 189 UUNET Technologies, Inc.
2386 439 470 238 AT&T Data Communications Serv
6198 430 191 197 BellSouth Network Solutions,
4355 406 309 114 EarthLink, Inc.
15290 392 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 799 2282 663 UUNET - Commercial IP service
3215 312 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 261 1995 224 Deutsche Telekom AG
680 242 2166 237 DFN-IP service G-WiN
1257 212 384 197 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 204 306 130 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5400 157 69 95 BT Ignite European Backbone
8708 149 42 147 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 125 18 26 MobiFon S.A.
8220 123 174 114 COLT Internet - International
2856 121 1299 111 BTnet UK Regional network
3246 118 378 115 Song Networks
3269 111 751 61 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 103 ImpSat
7303 234 36 49 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 159 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 79 62 21 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
8065 69 6 15 Empresas Publicas de Medellin
11992 69 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
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 1221 729 Supernet, Inc.
7018 1425 458 AT&T
18566 460 453 Covad Communications
6197 475 362 BellSouth Network Solutions,
4323 529 361 Time Warner Communications, I
7843 569 344 Adelphia Corp.
7046 562 321 UUNET Technologies, Inc.
4151 373 312 USDA
11492 307 306 Cable One
1221 1122 303 Telstra Pty Ltd
4355 406 292 EarthLink, Inc.
6347 368 289 SAVVIS Communications Corpora
1239 957 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 440 251 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 492 239 Virginia Polytechnic Institut
1 666 234 GENUITY
852 677 233 Telus Advanced Communications
6198 430 233 BellSouth Network Solutions,
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
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 /8:17 /9:3 /10:8 /11:12 /12:44
/13:92 /14:241 /15:443 /16:7330 /17:1568 /18:2864
/19:8089 /20:7974 /21:5715 /22:8693 /23:10398 /24:66441
/25:171 /26:178 /27:95 /28:82 /29:57 /30:101
/31:2 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 798 1221 Supernet, Inc.
7018 518 1425 AT&T
702 495 799 UUNET - Commercial IP service
18566 455 460 Covad Communications
690 447 498 Merit Network
701 429 1607 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
1239 357 957 Sprint
6197 351 475 BellSouth Network Solutions,
6198 341 430 BellSouth Network Solutions,
7843 339 569 Adelphia Corp.
11492 306 307 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 272 284 ImpSat
7046 263 562 UUNET Technologies, Inc.
2386 239 439 AT&T Data Communications Serv
3215 238 312 France Telecom Transpac
20115 236 357 Charter Communications
7303 233 234 Telecom Argentina Stet-France
4355 230 406 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:638 13:1 15:6 17:2 20:9 24:800
25:1 32:82 34:1 38:40 40:19 44:1
55:1 57:15 61:468 62:493 63:1898 64:1397
65:1852 66:1394 67:206 68:252 69:44 80:321
81:85 128:144 129:185 130:38 131:73 132:11
133:2 134:144 135:4 136:189 137:114 138:103
139:74 140:131 141:110 142:90 143:46 144:72
145:17 146:262 147:86 148:262 149:76 150:41
151:96 152:254 153:44 154:3 155:105 156:40
157:44 158:122 159:137 160:32 161:55 162:134
163:90 164:266 165:140 166:84 167:305 168:392
169:57 170:298 171:8 192:5353 193:2415 194:1994
195:937 196:454 198:3590 199:3070 200:2831 202:3597
203:5050 204:3015 205:2089 206:2410 207:2429 208:2707
209:2825 210:711 211:323 212:941 213:719 214:21
215:22 216:3212 217:580 218:77 219:17 220:46
End of report
