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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 01 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128047
Prefixes after maximum aggregation: 80036
Unique aggregates announced to Internet: 61837
Total ASes present in the Internet Routing Table: 15894
Origin-only ASes present in the Internet Routing Table: 13787
Origin ASes announcing only one prefix: 6265
Transit ASes present in the Internet Routing Table: 2107
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1227874596
Equivalent to 73 /8s, 47 /16s and 225 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56579
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22776
Total APNIC prefixes after maximum aggregation: 12827
Prefixes being announced from the APNIC address blocks: 21172
Unique aggregates announced from the APNIC address blocks: 12475
APNIC Region origin ASes present in the Internet Routing Table: 1903
APNIC Region origin ASes announcing only one prefix: 549
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 123077632
Equivalent to 7 /8s, 86 /16s and 4 /24s
Percentage of available APNIC address space announced: 66.3
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77207
Total ARIN prefixes after maximum aggregation: 48329
Prefixes being announced from the ARIN address blocks: 55008
Unique aggregates announced from the ARIN address blocks: 17272
ARIN Region origin ASes present in the Internet Routing Table: 8704
ARIN Region origin ASes announcing only one prefix: 3002
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197487904
Equivalent to 11 /8s, 197 /16s and 109 /24s
Percentage of available ARIN address space announced: 73.6
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, 29695 - 30719
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: 22626
Total RIPE prefixes after maximum aggregation: 16601
Prefixes being announced from the RIPE address blocks: 19147
Unique aggregates announced from the RIPE address blocks: 12959
RIPE Region origin ASes present in the Internet Routing Table: 4871
RIPE Region origin ASes announcing only one prefix: 2612
RIPE Region transit ASes present in the Internet Routing Table: 857
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136861504
Equivalent to 8 /8s, 40 /16s and 87 /24s
Percentage of available RIPE address space announced: 74.2
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: 5433
Total LACNIC prefixes after maximum aggregation: 2279
Prefixes being announced from the LACNIC address blocks: 4924
Unique aggregates announced from the LACNIC address blocks: 3203
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13308928
Equivalent to 0 /8s, 203 /16s and 20 /24s
Percentage of available LACNIC address space announced: 39.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 970 1109 686 Telstra Pty Ltd
4755 385 133 73 Videsh Sanchar Nigam Ltd. Aut
2907 374 1879 348 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 295 290 258 connect.com.au pty ltd
17557 292 21 141 Pakistan Telecom
9583 275 38 26 Satyam Infoway Ltd.,
17676 271 3996 32 XTAGE CORPORATION
7474 265 306 208 Optus Communications Pty Ltd
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9929 190 160 36 China Netcom Corp.
9942 189 69 111 COMindico Australia
9443 183 58 83 Primus Telecommunications
9498 183 20 17 BHARTI BT INTERNET LTD.
4538 180 1682 22 China Education and Research
17642 156 40 117 RequestDSL BGP AS# for Sydney
4739 141 58 130 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1461 8703 1017 UUNET Technologies, Inc.
7018 1402 7141 974 AT&T
6197 979 443 246 BellSouth Network Solutions,
3908 922 1574 493 Supernet, Inc.
1239 904 3028 650 Sprint
18566 695 176 8 Covad Communications
4323 670 575 195 Time Warner Communications, I
3356 585 10796 488 Level 3 Communications, LLC
6198 558 330 196 BellSouth Network Solutions,
7843 528 468 134 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 504 2127 291 Qwest
7066 498 205 263 Virginia Polytechnic Institut
20115 472 204 293 Charter Communications
690 411 59 276 Merit Network
705 410 185 251 UUNET Technologies, Inc.
4355 395 334 109 EarthLink, Inc.
2386 375 507 194 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 354 397 81 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 709 2120 588 UUNET - Commercial IP service
3301 294 1169 283 TeliaNet Sweden
3320 272 1989 232 Deutsche Telekom AG
8220 259 435 246 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
3215 188 737 106 France Telecom Transpac
5400 184 173 133 BT Ignite European Backbone
5515 184 778 146 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 158 110 154 Romania Data Systems S.A.
3303 148 540 141 Swisscom Ltd
3246 127 376 125 Song Networks
12302 127 18 34 MobiFon S.A.
3269 119 853 65 TELECOM ITALIA
2856 112 1291 103 BTnet UK Regional network
25186 105 128 72 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 104 101 ImpSat
8151 234 367 122 UniNet S.A. de C.V.
7303 216 40 58 Telecom Argentina Stet-France
11172 187 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
10620 130 8 26 TVCABLE BOGOTA
6503 129 189 93 AVANTEL, S.A.
11340 100 2 33 Red Universitaria Nacional
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6505 81 84 70 Global One Communicaoes Ltda
6535 75 5 18 Chilesat Servicios Empresari
11992 75 8 35 Integrated Systems
15311 75 14 38 Telefonica Empresas
11830 73 21 28 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6197 979 733 BellSouth Network Solutions,
18566 695 687 Covad Communications
4323 670 475 Time Warner Communications, I
3908 922 429 Supernet, Inc.
7018 1402 428 AT&T
7843 528 394 Adelphia Corp.
6198 558 362 BellSouth Network Solutions,
4755 385 312 Videsh Sanchar Nigam Ltd. Aut
5668 308 293 Century Telephone
27364 314 291 Armstrong Cable Services
4355 395 286 EarthLink, Inc.
1221 970 284 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 354 273 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 904 254 Sprint
22773 287 251 Cox Communications, Inc. Atla
9583 275 249 Satyam Infoway Ltd.,
376 361 246 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65093 PRIVATE 148.170.28.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.32.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.92.0/22 7991 Savvis Communication
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
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
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:267 /15:471 /16:7441 /17:1762 /18:3146
/19:8543 /20:8849 /21:6501 /22:9321 /23:10710 /24:70221
/25:147 /26:202 /27:169 /28:20 /29:9 /30:52
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6197 839 979 BellSouth Network Solutions,
18566 689 695 Covad Communications
3908 583 922 Supernet, Inc.
7018 502 1402 AT&T
701 437 1461 UUNET Technologies, Inc.
6198 434 558 BellSouth Network Solutions,
702 425 709 UUNET - Commercial IP service
7066 393 498 Virginia Polytechnic Institut
690 371 411 Merit Network
20115 317 472 Charter Communications
1239 313 904 Sprint
27364 308 314 Armstrong Cable Services
3356 279 585 Level 3 Communications, LLC
5668 274 308 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
4355 213 395 EarthLink, Inc.
3320 211 272 Deutsche Telekom AG
7843 211 528 Adelphia Corp.
209 200 504 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:706 13:1 15:4 16:1 17:3
20:6 24:829 25:1 32:84 38:47 40:23
43:1 44:2 55:1 57:14 61:315 62:421
63:1883 64:1758 65:2057 66:2228 67:337 68:414
69:268 80:423 81:158 82:17 128:142 129:167
130:62 131:81 132:18 133:1 134:165 135:9
136:178 137:117 138:129 139:49 140:163 141:138
142:102 143:44 144:87 145:14 146:276 147:65
148:299 149:78 150:121 151:66 152:212 153:58
154:7 155:130 156:58 157:55 158:134 159:142
160:45 161:69 162:362 163:68 164:319 165:147
166:103 167:304 168:178 169:97 170:324 171:9
192:5322 193:2446 194:1983 195:1158 196:473 198:3572
199:2845 200:3035 202:4012 203:5287 204:2994 205:2052
206:2306 207:2508 208:2601 209:2730 210:942 211:372
212:928 213:931 214:16 215:22 216:3282 217:728
218:109 219:41 220:117 221:12 222:1
End of report
