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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122730
Prefixes after maximum aggregation: 77950
Unique aggregates announced to Internet: 59140
Total ASes present in the Internet Routing Table: 14777
Origin-only ASes present in the Internet Routing Table: 12827
Origin ASes announcing only one prefix: 5786
Transit ASes present in the Internet Routing Table: 1950
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 18
Number of addresses announced to Internet: 1200257669
Equivalent to 71 /8s, 138 /16s and 122 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57533
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20702
Total APNIC prefixes after maximum aggregation: 12168
Prefixes being announced from the APNIC address blocks: 19150
Unique aggregates announced from the APNIC address blocks: 11701
APNIC Region origin ASes present in the Internet Routing Table: 1751
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107016608
Equivalent to 6 /8s, 96 /16s and 241 /24s
Percentage of available APNIC address space announced: 56.7
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75454
Total ARIN prefixes after maximum aggregation: 47984
Prefixes being announced from the ARIN address blocks: 53703
Unique aggregates announced from the ARIN address blocks: 16839
ARIN Region origin ASes present in the Internet Routing Table: 8208
ARIN Region origin ASes announcing only one prefix: 2766
ARIN Region transit ASes present in the Internet Routing Table: 781
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187342016
Equivalent to 11 /8s, 42 /16s and 156 /24s
Percentage of available ARIN address space announced: 69.8
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: 21266
Total RIPE prefixes after maximum aggregation: 15585
Prefixes being announced from the RIPE address blocks: 17767
Unique aggregates announced from the RIPE address blocks: 11843
RIPE Region origin ASes present in the Internet Routing Table: 4426
RIPE Region origin ASes announcing only one prefix: 2414
RIPE Region transit ASes present in the Internet Routing Table: 800
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 127789568
Equivalent to 7 /8s, 157 /16s and 234 /24s
Percentage of available RIPE address space announced: 76.2
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: 5298
Total LACNIC prefixes after maximum aggregation: 2213
Prefixes being announced from the LACNIC address blocks: 4678
Unique aggregates announced from the LACNIC address blocks: 3041
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12341504
Equivalent to 0 /8s, 188 /16s and 81 /24s
Percentage of available LACNIC address space announced: 73.6
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 1096 1106 800 Telstra Pty Ltd
703 406 370 315 UUNET
2907 387 1959 366 SINET Japan
17557 367 26 141 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 304 275 206 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 247 772 209 DACOM Corporation
17676 232 3574 24 XTAGE CORPORATION
4755 227 133 73 Videsh Sanchar Nigam Ltd. Aut
9583 217 33 13 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 57 77 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
7539 129 180 121 TANet2, sponsored by NSC, TAI
4716 128 733 122 TTnet
4739 128 57 116 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1574 8855 1130 UUNET Technologies, Inc.
7018 1375 7150 955 AT&T
3908 1262 1590 490 Supernet, Inc.
1239 982 3154 696 Sprint
1 664 8088 433 GENUITY
7843 608 413 198 Adelphia Corp.
4323 557 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
4151 537 691 59 USDA
209 531 2091 340 Qwest
18566 518 119 10 Covad Communications
690 503 73 313 Merit Network
3561 495 2303 341 Cable & Wireless USA
6197 490 556 112 BellSouth Network Solutions,
2386 479 478 241 AT&T Data Communications Serv
7066 478 204 254 Virginia Polytechnic Institut
705 449 165 195 UUNET Technologies, Inc.
6198 443 196 199 BellSouth Network Solutions,
3549 405 695 309 Global Crossing
20115 393 166 262 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 786 2232 650 UUNET - Commercial IP service
3301 314 1143 304 TeliaNet Sweden
3215 307 818 172 France Telecom Transpac
3320 266 1996 229 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
5400 219 78 102 BT Ignite European Backbone
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 128 182 119 COLT Internet - International
12302 122 17 29 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 110 750 60 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 100 654 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 341 116 UniNet S.A. de C.V.
11172 159 66 33 Servicios Alestra S.A de C.V
6503 157 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 59 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1262 772 Supernet, Inc.
18566 518 508 Covad Communications
4151 537 478 USDA
7018 1375 420 AT&T
7843 608 410 Adelphia Corp.
4323 557 385 Time Warner Communications, I
6197 490 378 BellSouth Network Solutions,
11492 323 319 Cable One
1221 1096 296 Telstra Pty Ltd
6347 370 290 SAVVIS Communications Corpora
1239 982 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 391 279 EarthLink, Inc.
705 449 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
6198 443 244 BellSouth Network Solutions,
27364 258 240 Armstrong Cable Services
2386 479 238 AT&T Data Communications Serv
1 664 231 GENUITY
17557 367 226 Pakistan Telecom
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
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
192.44.0.0/19 702 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
192.136.135.0/24 1239 Sprint
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 /11:13 /12:46
/13:89 /14:238 /15:447 /16:7346 /17:1606 /18:2908
/19:8229 /20:8162 /21:5830 /22:8867 /23:10648 /24:67509
/25:168 /26:195 /27:109 /28:87 /29:63 /30:78
/31:4 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 831 1262 Supernet, Inc.
18566 513 518 Covad Communications
702 491 786 UUNET - Commercial IP service
7018 478 1375 AT&T
690 452 503 Merit Network
701 452 1574 UUNET Technologies, Inc.
7066 377 478 Virginia Polytechnic Institut
1239 371 982 Sprint
7843 366 608 Adelphia Corp.
6197 361 490 BellSouth Network Solutions,
6198 353 443 BellSouth Network Solutions,
11492 322 323 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 279 479 AT&T Data Communications Serv
6140 277 290 ImpSat
20115 269 393 Charter Communications
27364 250 258 Armstrong Cable Services
7303 239 240 Telecom Argentina Stet-France
3215 232 307 France Telecom Transpac
209 219 531 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:659 13:1 15:4 17:2 20:9 24:916
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:15 61:451 62:501 63:1926 64:1425
65:1913 66:1517 67:219 68:292 69:55 80:332
81:100 128:150 129:224 130:41 131:83 132:11
133:11 134:147 135:4 136:114 137:116 138:106
139:73 140:145 141:124 142:94 143:47 144:95
145:18 146:263 147:86 148:269 149:73 150:43
151:110 152:253 153:51 154:2 155:108 156:43
157:44 158:123 159:139 160:35 161:60 162:126
163:86 164:292 165:142 166:75 167:320 168:394
169:55 170:309 171:9 192:5300 193:2392 194:2004
195:983 196:475 198:3605 199:3232 200:2894 202:3662
203:5089 204:3075 205:2024 206:2407 207:2418 208:2677
209:2811 210:738 211:332 212:970 213:770 214:21
215:22 216:3241 217:601 218:82 219:9 220:52
End of report
