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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 12 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129379
Prefixes after maximum aggregation: 80533
Unique aggregates announced to Internet: 62119
Total ASes present in the Internet Routing Table: 15954
Origin-only ASes present in the Internet Routing Table: 13838
Origin ASes announcing only one prefix: 6285
Transit ASes present in the Internet Routing Table: 2116
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1246144808
Equivalent to 74 /8s, 70 /16s and 169 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57636
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22877
Total APNIC prefixes after maximum aggregation: 12860
Prefixes being announced from the APNIC address blocks: 21287
Unique aggregates announced from the APNIC address blocks: 12389
APNIC Region origin ASes present in the Internet Routing Table: 1909
APNIC Region origin ASes announcing only one prefix: 546
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123601920
Equivalent to 7 /8s, 94 /16s and 4 /24s
Percentage of available APNIC address space announced: 66.6
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: 78253
Total ARIN prefixes after maximum aggregation: 48734
Prefixes being announced from the ARIN address blocks: 55804
Unique aggregates announced from the ARIN address blocks: 17404
ARIN Region origin ASes present in the Internet Routing Table: 8724
ARIN Region origin ASes announcing only one prefix: 2998
ARIN Region transit ASes present in the Internet Routing Table: 850
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 198125088
Equivalent to 11 /8s, 207 /16s and 38 /24s
Percentage of available ARIN address space announced: 73.8
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, 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: 22775
Total RIPE prefixes after maximum aggregation: 16676
Prefixes being announced from the RIPE address blocks: 19294
Unique aggregates announced from the RIPE address blocks: 13000
RIPE Region origin ASes present in the Internet Routing Table: 4904
RIPE Region origin ASes announcing only one prefix: 2636
RIPE Region transit ASes present in the Internet Routing Table: 856
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 137079872
Equivalent to 8 /8s, 43 /16s and 172 /24s
Percentage of available RIPE address space announced: 74.3
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
30720 - 31743
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: 5468
Total LACNIC prefixes after maximum aggregation: 2263
Prefixes being announced from the LACNIC address blocks: 4982
Unique aggregates announced from the LACNIC address blocks: 3210
LACNIC Region origin ASes present in the Internet Routing Table: 352
LACNIC Region origin ASes announcing only one prefix: 105
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: 12
Number of LACNIC addresses announced to Internet: 13347328
Equivalent to 0 /8s, 203 /16s and 170 /24s
Percentage of available LACNIC address space announced: 39.8
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 971 1110 688 Telstra Pty Ltd
4755 396 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 368 1879 345 SINET Japan
4134 360 2230 109 Data Communications Bureau
703 332 356 265 UUNET
17557 301 25 148 Pakistan Telecom
2764 297 290 260 connect.com.au pty ltd
17676 272 4012 33 XTAGE CORPORATION
7474 262 305 208 Optus Communications Pty Ltd
4766 241 2462 176 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
9583 232 43 9 Satyam Infoway Ltd.,
4538 209 1714 21 China Education and Research
9800 203 332 52 CHINA UNICOM
9942 194 69 119 COMindico Australia
9929 190 160 36 China Netcom Corp.
9498 185 20 18 BHARTI BT INTERNET LTD.
9443 183 62 82 Primus Telecommunications
17642 154 40 116 RequestDSL BGP AS# for Sydney
4739 143 58 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1452 8670 1008 UUNET Technologies, Inc.
7018 1392 7110 973 AT&T
6198 1217 330 196 BellSouth Network Solutions,
6197 995 442 247 BellSouth Network Solutions,
3908 945 1577 511 Supernet, Inc.
1239 924 3003 667 Sprint
18566 707 176 8 Covad Communications
4323 677 575 197 Time Warner Communications, I
3356 591 10829 494 Level 3 Communications, LLC
7843 532 473 138 Adelphia Corp.
852 517 1123 411 Telus Advanced Communications
209 509 2146 292 Qwest
7066 506 206 267 Virginia Polytechnic Institut
20115 473 206 288 Charter Communications
690 411 59 276 Merit Network
705 400 184 244 UUNET Technologies, Inc.
4355 393 332 108 EarthLink, Inc.
2386 383 508 200 AT&T Data Communications Serv
376 359 359 115 Reseau Interordinateurs Scien
6347 345 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 714 2101 593 UUNET - Commercial IP service
3301 298 1169 286 TeliaNet Sweden
3320 274 2004 235 Deutsche Telekom AG
8220 256 435 245 COLT Internet - International
1257 243 438 191 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
719 193 307 123 LANLINK autonomous system
3215 193 721 100 France Telecom Transpac
5400 187 173 135 BT Ignite European Backbone
5515 185 778 147 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 149 556 142 Swisscom Ltd
3246 128 376 126 Song Networks
12302 127 18 34 MobiFon S.A.
3269 119 853 65 TELECOM ITALIA
2856 114 1293 105 BTnet UK Regional network
25186 113 160 77 France Telecom Transpac's Tra
2647 101 4225 49 SITA
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 103 98 ImpSat
8151 235 367 123 UniNet S.A. de C.V.
7303 219 41 49 Telecom Argentina Stet-France
11172 184 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6503 129 205 93 AVANTEL, S.A.
10620 123 8 26 TVCABLE BOGOTA
11340 104 3 30 Red Universitaria Nacional
6147 86 70 19 Telefonica Del Peru
11992 86 24 30 Integrated Systems
8065 83 8 17 Empresas Publicas de Medellin
6505 82 84 70 Global One Communicaoes Ltda
15311 77 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 75 22 24 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 66 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
10292 58 5 26 TELECOMMUNICATIONS OF JAMAICA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6198 1217 1021 BellSouth Network Solutions,
6197 995 748 BellSouth Network Solutions,
18566 707 699 Covad Communications
4323 677 480 Time Warner Communications, I
3908 945 434 Supernet, Inc.
7018 1392 419 AT&T
7843 532 394 Adelphia Corp.
4755 396 324 Videsh Sanchar Nigam Ltd. Aut
5668 308 292 Century Telephone
27364 314 291 Armstrong Cable Services
4355 393 285 EarthLink, Inc.
22909 299 284 Comcast Cable Corporation
1221 971 283 Telstra Pty Ltd
6347 345 265 SAVVIS Communications Corpora
1239 924 257 Sprint
22773 289 252 Cox Communications, Inc. Atla
4134 360 251 Data Communications Bureau
376 359 244 Reseau Interordinateurs Scien
6140 339 241 ImpSat
25844 243 241 Skadden, Arps, Slate, Meagher
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65158 PRIVATE 24.166.0.0/20 12262 RoadRunner-Cincinatt
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65158 PRIVATE 65.29.64.0/19 12262 RoadRunner-Cincinatt
65158 PRIVATE 66.61.160.0/19 12262 RoadRunner-Cincinatt
65400 PRIVATE 149.165.240.0/21 11537 University Corporati
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 /8:19 /9:4 /10:6 /11:12 /12:55
/13:98 /14:268 /15:470 /16:7429 /17:1779 /18:3193
/19:8494 /20:8918 /21:6554 /22:9383 /23:10785 /24:71219
/25:163 /26:206 /27:156 /28:43 /29:24 /30:58
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1093 1217 BellSouth Network Solutions,
6197 855 995 BellSouth Network Solutions,
18566 701 707 Covad Communications
3908 602 945 Supernet, Inc.
7018 495 1392 AT&T
701 442 1452 UUNET Technologies, Inc.
702 430 714 UUNET - Commercial IP service
7066 400 506 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 328 924 Sprint
20115 316 473 Charter Communications
27364 308 314 Armstrong Cable Services
3356 283 591 Level 3 Communications, LLC
5668 274 308 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 216 274 Deutsche Telekom AG
4355 215 393 EarthLink, Inc.
7843 212 532 Adelphia Corp.
209 203 509 Qwest
14824 201 228 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:711 13:1 15:6 16:1 17:3
20:6 24:822 25:1 32:83 38:50 40:23
43:1 44:2 55:1 57:14 61:328 62:435
63:1870 64:1809 65:2120 66:2298 67:439 68:857
69:279 80:418 81:174 82:17 128:149 129:153
130:64 131:83 132:18 134:166 135:10 136:180
137:120 138:131 139:50 140:165 141:137 142:101
143:48 144:89 145:21 146:279 147:68 148:302
149:79 150:121 151:65 152:212 153:58 154:7
155:130 156:58 157:53 158:140 159:143 160:45
161:69 162:362 163:68 164:317 165:153 166:100
167:305 168:176 169:96 170:315 171:9 192:5431
193:2439 194:1987 195:1177 196:472 198:3583 199:2835
200:3024 202:4062 203:5300 204:2994 205:2047 206:2292
207:2520 208:2629 209:2764 210:907 211:379 212:938
213:936 214:15 215:22 216:3248 217:753 218:109
219:41 220:115 221:13 222:1
End of report
