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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 02 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121798
Prefixes after maximum aggregation: 77475
Unique aggregates announced to Internet: 58091
Total ASes present in the Internet Routing Table: 14729
Origin-only ASes present in the Internet Routing Table: 12786
Origin ASes announcing only one prefix: 5769
Transit ASes present in the Internet Routing Table: 1943
Transit-only ASes present in the Internet Routing Table: 66
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1199226765
Equivalent to 71 /8s, 122 /16s and 191 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56939
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20413
Total APNIC prefixes after maximum aggregation: 12006
Prefixes being announced from the APNIC address blocks: 18950
Unique aggregates announced from the APNIC address blocks: 11634
APNIC Region origin ASes present in the Internet Routing Table: 1739
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 289
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106655464
Equivalent to 6 /8s, 91 /16s and 110 /24s
Percentage of available APNIC address space announced: 56.6
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: 74927
Total ARIN prefixes after maximum aggregation: 47701
Prefixes being announced from the ARIN address blocks: 53251
Unique aggregates announced from the ARIN address blocks: 16653
ARIN Region origin ASes present in the Internet Routing Table: 8194
ARIN Region origin ASes announcing only one prefix: 2764
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187230592
Equivalent to 11 /8s, 40 /16s and 233 /24s
Percentage of available ARIN address space announced: 69.7
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: 21146
Total RIPE prefixes after maximum aggregation: 15559
Prefixes being announced from the RIPE address blocks: 17694
Unique aggregates announced from the RIPE address blocks: 11066
RIPE Region origin ASes present in the Internet Routing Table: 4402
RIPE Region origin ASes announcing only one prefix: 2399
RIPE Region transit ASes present in the Internet Routing Table: 791
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127408896
Equivalent to 7 /8s, 152 /16s and 27 /24s
Percentage of available RIPE address space announced: 75.9
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: 5302
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 4668
Unique aggregates announced from the LACNIC address blocks: 3031
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12180992
Equivalent to 0 /8s, 185 /16s and 222 /24s
Percentage of available LACNIC address space announced: 72.6
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 1115 1119 810 Telstra Pty Ltd
703 409 368 315 UUNET
2907 388 1960 367 SINET Japan
17557 349 25 131 Pakistan Telecom
2764 325 341 293 connect.com.au pty ltd
7474 306 276 208 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 264 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 234 134 75 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 216 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 165 204 43 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 136 8 17 TATA ISP
4716 128 735 122 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1603 8872 1139 UUNET Technologies, Inc.
7018 1383 7150 958 AT&T
3908 1242 1589 483 Supernet, Inc.
1239 982 3138 695 Sprint
1 648 8086 433 GENUITY
852 600 1107 444 Telus Advanced Communications
7843 560 405 198 Adelphia Corp.
7046 559 826 243 UUNET Technologies, Inc.
4323 536 473 168 Time Warner Communications, I
4151 529 691 58 USDA
209 528 2092 336 Qwest
3561 500 2328 340 Cable & Wireless USA
690 499 73 309 Merit Network
6197 492 555 113 BellSouth Network Solutions,
18566 492 114 7 Covad Communications
7066 490 204 254 Virginia Polytechnic Institut
2386 478 477 249 AT&T Data Communications Serv
705 447 165 193 UUNET Technologies, Inc.
6198 438 195 202 BellSouth Network Solutions,
4355 402 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2250 653 UUNET - Commercial IP service
3215 316 819 174 France Telecom Transpac
3301 314 1142 302 TeliaNet Sweden
3320 251 1987 219 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 201 307 127 LANLINK autonomous system
5400 197 70 97 BT Ignite European Backbone
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 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
8220 125 182 116 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1299 108 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 360 101 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 325 116 UniNet S.A. de C.V.
11172 161 66 33 Servicios Alestra S.A de C.V
6503 157 207 109 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
11992 75 8 33 Integrated Systems
6147 74 62 20 Telefonica Del Peru
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 21 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
1916 70 286 43 Fundacao de Amparo a Pesquisa
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 61 4 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1242 759 Supernet, Inc.
18566 492 485 Covad Communications
4151 529 471 USDA
7018 1383 425 AT&T
6197 492 379 BellSouth Network Solutions,
4323 536 368 Time Warner Communications, I
7843 560 362 Adelphia Corp.
7046 559 316 UUNET Technologies, Inc.
11492 309 308 Cable One
1221 1115 305 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 982 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 447 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
7066 490 236 Virginia Polytechnic Institut
6198 438 236 BellSouth Network Solutions,
2386 478 229 AT&T Data Communications Serv
22291 243 224 Charter Communications
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
192.153.136.0/21 568 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 /8:18 /9:3 /10:8 /11:12 /12:46
/13:92 /14:238 /15:444 /16:7352 /17:1602 /18:2892
/19:8168 /20:8101 /21:5807 /22:8808 /23:10529 /24:66959
/25:164 /26:188 /27:108 /28:81 /29:61 /30:59
/31:4 /32:54
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 813 1242 Supernet, Inc.
702 493 790 UUNET - Commercial IP service
7018 487 1383 AT&T
18566 487 492 Covad Communications
701 474 1603 UUNET Technologies, Inc.
690 448 499 Merit Network
7066 389 490 Virginia Polytechnic Institut
1239 367 982 Sprint
6197 361 492 BellSouth Network Solutions,
6198 348 438 BellSouth Network Solutions,
7843 326 560 Adelphia Corp.
11492 308 309 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 274 478 AT&T Data Communications Serv
6140 271 284 ImpSat
7046 263 559 UUNET Technologies, Inc.
20115 256 384 Charter Communications
3215 241 316 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:655 13:1 15:4 17:2 20:9 24:838
25:1 32:83 34:1 38:60 40:17 44:2
55:1 57:16 61:452 62:508 63:1905 64:1405
65:1894 66:1462 67:215 68:285 69:51 80:322
81:99 128:144 129:189 130:40 131:81 132:11
133:2 134:145 135:4 136:121 137:117 138:106
139:74 140:132 141:123 142:94 143:47 144:117
145:18 146:264 147:85 148:252 149:73 150:43
151:110 152:253 153:51 154:3 155:107 156:42
157:41 158:124 159:141 160:34 161:58 162:135
163:83 164:270 165:140 166:80 167:321 168:387
169:51 170:306 171:8 192:5285 193:2422 194:2009
195:970 196:470 198:3592 199:3204 200:2891 202:3593
203:5086 204:3043 205:2026 206:2395 207:2386 208:2684
209:2778 210:734 211:336 212:955 213:740 214:21
215:21 216:3255 217:602 218:80 219:14 220:52
End of report
