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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 23 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122886
Prefixes after maximum aggregation: 78109
Unique aggregates announced to Internet: 59109
Total ASes present in the Internet Routing Table: 14840
Origin-only ASes present in the Internet Routing Table: 12874
Origin ASes announcing only one prefix: 5818
Transit ASes present in the Internet Routing Table: 1966
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: 20
Number of addresses announced to Internet: 1218173221
Equivalent to 72 /8s, 155 /16s and 217 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20598
Total APNIC prefixes after maximum aggregation: 12161
Prefixes being announced from the APNIC address blocks: 19080
Unique aggregates announced from the APNIC address blocks: 11783
APNIC Region origin ASes present in the Internet Routing Table: 1748
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107729600
Equivalent to 6 /8s, 107 /16s and 210 /24s
Percentage of available APNIC address space announced: 57.1
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: 75732
Total ARIN prefixes after maximum aggregation: 48125
Prefixes being announced from the ARIN address blocks: 53901
Unique aggregates announced from the ARIN address blocks: 16854
ARIN Region origin ASes present in the Internet Routing Table: 8248
ARIN Region origin ASes announcing only one prefix: 2792
ARIN Region transit ASes present in the Internet Routing Table: 794
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187931456
Equivalent to 11 /8s, 51 /16s and 155 /24s
Percentage of available ARIN address space announced: 70.0
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: 21302
Total RIPE prefixes after maximum aggregation: 15613
Prefixes being announced from the RIPE address blocks: 17824
Unique aggregates announced from the RIPE address blocks: 11860
RIPE Region origin ASes present in the Internet Routing Table: 4448
RIPE Region origin ASes announcing only one prefix: 2426
RIPE Region transit ASes present in the Internet Routing Table: 802
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 128272384
Equivalent to 7 /8s, 165 /16s and 72 /24s
Percentage of available RIPE address space announced: 76.5
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: 5243
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 4637
Unique aggregates announced from the LACNIC address blocks: 2929
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: 70
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12398592
Equivalent to 0 /8s, 189 /16s and 48 /24s
Percentage of available LACNIC address space announced: 73.9
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 1102 1106 805 Telstra Pty Ltd
703 406 370 314 UUNET
2907 391 1992 368 SINET Japan
17557 376 27 139 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 310 2668 102 Data Communications Bureau
7474 306 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 250 772 212 DACOM Corporation
17676 235 3614 26 XTAGE CORPORATION
4755 228 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 215 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 178 57 77 Primus Telecommunications
9800 167 205 42 CHINA UNICOM
9238 134 8 17 TATA ISP
4716 128 717 122 TTnet
4739 127 57 116 Commerical Internet eXchange
9498 125 9 9 BHARTI BT INTERNET LTD.
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1578 8844 1123 UUNET Technologies, Inc.
7018 1357 7143 943 AT&T
3908 1249 1588 481 Supernet, Inc.
1239 977 3167 694 Sprint
1 711 8071 427 GENUITY
7843 630 403 184 Adelphia Corp.
3561 591 2352 344 Cable & Wireless USA
852 554 1107 436 Telus Advanced Communications
4323 553 490 171 Time Warner Communications, I
4151 544 691 60 USDA
18566 541 122 11 Covad Communications
209 529 2091 338 Qwest
690 503 73 313 Merit Network
2386 499 481 247 AT&T Data Communications Serv
7066 489 204 254 Virginia Polytechnic Institut
6197 475 338 196 BellSouth Network Solutions,
705 458 186 204 UUNET Technologies, Inc.
6198 447 221 174 BellSouth Network Solutions,
3549 409 695 312 Global Crossing
20115 408 168 265 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 784 2236 649 UUNET - Commercial IP service
3301 312 1174 302 TeliaNet Sweden
3215 310 835 174 France Telecom Transpac
3320 267 1996 230 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
5400 218 77 104 BT Ignite European Backbone
1257 217 344 191 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 151 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 136 215 127 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 112 753 62 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 106 10 19 RNC - Romanian Natioanal R&D
3352 103 702 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 106 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 217 349 116 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
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 75 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 40 Global One Colombia
13999 60 36 8 Mega Cable S.A. de C.V.
7738 59 170 11 Telecomunicacoes da Bahia S.A
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1249 768 Supernet, Inc.
18566 541 530 Covad Communications
4151 544 484 USDA
7843 630 446 Adelphia Corp.
7018 1357 414 AT&T
4323 553 382 Time Warner Communications, I
1221 1102 297 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1 711 284 GENUITY
1239 977 283 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
6197 475 279 BellSouth Network Solutions,
6198 447 273 BellSouth Network Solutions,
4355 387 273 EarthLink, Inc.
27364 278 260 Armstrong Cable Services
705 458 254 UUNET Technologies, Inc.
2386 499 252 AT&T Data Communications Serv
4814 264 249 China Telecom (Group)
3561 591 247 Cable & Wireless USA
17557 376 237 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
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
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
160.225.160.0/19 5676 Pacific Bell Internet Service
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
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
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 /11:13 /12:46
/13:89 /14:241 /15:450 /16:7350 /17:1634 /18:2916
/19:8239 /20:8228 /21:5855 /22:8825 /23:10602 /24:67493
/25:195 /26:197 /27:126 /28:116 /29:78 /30:91
/31:4 /32:69
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 817 1249 Supernet, Inc.
18566 536 541 Covad Communications
702 487 784 UUNET - Commercial IP service
7018 466 1357 AT&T
701 456 1578 UUNET Technologies, Inc.
690 453 503 Merit Network
7066 388 489 Virginia Polytechnic Institut
7843 383 630 Adelphia Corp.
1239 373 977 Sprint
6198 355 447 BellSouth Network Solutions,
6197 354 475 BellSouth Network Solutions,
2386 299 499 AT&T Data Communications Serv
22927 294 295 TELEFONICA DE ARGENTINA
20115 283 408 Charter Communications
6140 278 291 ImpSat
27364 272 278 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 234 310 France Telecom Transpac
209 226 529 Qwest
4355 213 387 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:663 13:1 15:4 17:2 20:10
24:792 25:1 32:92 34:1 38:61 40:18
44:2 55:1 57:15 61:452 62:507 63:1922
64:1471 65:1921 66:1583 67:222 68:324 69:65
80:335 81:103 128:150 129:225 130:45 131:83
132:11 133:11 134:144 135:4 136:113 137:116
138:106 139:67 140:147 141:99 142:97 143:46
144:98 145:18 146:265 147:90 148:270 149:74
150:42 151:87 152:249 153:51 154:2 155:107
156:46 157:45 158:123 159:138 160:33 161:61
162:126 163:89 164:297 165:145 166:74 167:322
168:408 169:55 170:311 171:6 192:5298 193:2388
194:1994 195:972 196:479 198:3625 199:3238 200:2878
202:3656 203:5031 204:3069 205:2028 206:2399 207:2431
208:2675 209:2812 210:734 211:326 212:976 213:781
214:21 215:22 216:3246 217:604 218:82 219:9
220:54
End of report
