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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 10 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129375
Prefixes after maximum aggregation: 80466
Unique aggregates announced to Internet: 62172
Total ASes present in the Internet Routing Table: 15948
Origin-only ASes present in the Internet Routing Table: 13838
Origin ASes announcing only one prefix: 6286
Transit ASes present in the Internet Routing Table: 2110
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1245729832
Equivalent to 74 /8s, 64 /16s and 84 /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: 57659
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22881
Total APNIC prefixes after maximum aggregation: 12853
Prefixes being announced from the APNIC address blocks: 21289
Unique aggregates announced from the APNIC address blocks: 12372
APNIC Region origin ASes present in the Internet Routing Table: 1907
APNIC Region origin ASes announcing only one prefix: 543
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123418880
Equivalent to 7 /8s, 91 /16s and 57 /24s
Percentage of available APNIC address space announced: 66.5
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: 78208
Total ARIN prefixes after maximum aggregation: 48667
Prefixes being announced from the ARIN address blocks: 55800
Unique aggregates announced from the ARIN address blocks: 17395
ARIN Region origin ASes present in the Internet Routing Table: 8720
ARIN Region origin ASes announcing only one prefix: 3001
ARIN Region transit ASes present in the Internet Routing Table: 848
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197823264
Equivalent to 11 /8s, 202 /16s and 139 /24s
Percentage of available ARIN address space announced: 73.7
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, 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: 22800
Total RIPE prefixes after maximum aggregation: 16675
Prefixes being announced from the RIPE address blocks: 19327
Unique aggregates announced from the RIPE address blocks: 13001
RIPE Region origin ASes present in the Internet Routing Table: 4904
RIPE Region origin ASes announcing only one prefix: 2638
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: 19
Number of RIPE addresses announced to Internet: 137120064
Equivalent to 8 /8s, 44 /16s and 73 /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: 5483
Total LACNIC prefixes after maximum aggregation: 2271
Prefixes being announced from the LACNIC address blocks: 4976
Unique aggregates announced from the LACNIC address blocks: 3296
LACNIC Region origin ASes present in the Internet Routing Table: 350
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13363200
Equivalent to 0 /8s, 203 /16s and 232 /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 71 Videsh Sanchar Nigam Ltd. Aut
2907 368 1879 345 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
17557 302 25 146 Pakistan Telecom
2764 297 290 260 connect.com.au pty ltd
17676 272 4012 33 XTAGE CORPORATION
7474 261 305 207 Optus Communications Pty Ltd
4766 240 2462 176 Korea Internet Exchange for "
9583 234 43 9 Satyam Infoway Ltd.,
3786 233 773 203 DACOM Corporation
4538 209 1714 21 China Education and Research
9800 203 332 52 CHINA UNICOM
9942 191 69 112 COMindico Australia
9929 190 160 36 China Netcom Corp.
9498 184 20 17 BHARTI BT INTERNET LTD.
9443 183 62 82 Primus Telecommunications
17642 154 40 116 RequestDSL BGP AS# for Sydney
4739 142 58 131 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1455 8670 1010 UUNET Technologies, Inc.
7018 1400 7127 975 AT&T
6198 1216 330 195 BellSouth Network Solutions,
6197 989 467 231 BellSouth Network Solutions,
3908 945 1577 511 Supernet, Inc.
1239 925 3003 669 Sprint
18566 708 176 8 Covad Communications
4323 676 559 195 Time Warner Communications, I
3356 590 10828 493 Level 3 Communications, LLC
7843 532 473 138 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
7066 506 206 267 Virginia Polytechnic Institut
209 504 2146 289 Qwest
20115 469 204 285 Charter Communications
690 411 59 276 Merit Network
705 401 184 245 UUNET Technologies, Inc.
4355 392 332 108 EarthLink, Inc.
2386 383 508 200 AT&T Data Communications Serv
376 359 359 115 Reseau Interordinateurs Scien
6347 348 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 715 2101 594 UUNET - Commercial IP service
3301 294 1169 283 TeliaNet Sweden
3320 280 2005 240 Deutsche Telekom AG
8220 257 435 246 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 192 721 99 France Telecom Transpac
5400 187 173 135 BT Ignite European Backbone
5515 186 779 148 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 118 853 64 TELECOM ITALIA
2856 114 1293 105 BTnet UK Regional network
25186 113 160 77 France Telecom Transpac's Tra
2647 100 4225 48 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 339 104 99 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 151 10 17 NSS, S.A.
6503 130 205 94 AVANTEL, S.A.
10620 122 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 82 8 17 Empresas Publicas de Medellin
6505 81 84 69 Global One Communicaoes Ltda
15311 77 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 74 22 25 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 61 270 41 Fundacao de Amparo a Pesquisa
10292 57 5 28 TELECOMMUNICATIONS OF JAMAICA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6198 1216 1021 BellSouth Network Solutions,
6197 989 758 BellSouth Network Solutions,
18566 708 700 Covad Communications
4323 676 481 Time Warner Communications, I
3908 945 434 Supernet, Inc.
7018 1400 425 AT&T
7843 532 394 Adelphia Corp.
4755 396 325 Videsh Sanchar Nigam Ltd. Aut
27364 314 291 Armstrong Cable Services
5668 307 291 Century Telephone
4355 392 284 EarthLink, Inc.
1221 971 283 Telstra Pty Ltd
22909 298 280 Comcast Cable Corporation
6347 348 268 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 925 256 Sprint
22773 288 252 Cox Communications, Inc. Atla
376 359 244 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
6140 339 240 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
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 /15:469 /16:7428 /17:1774 /18:3182
/19:8497 /20:8905 /21:6541 /22:9389 /23:10779 /24:71257
/25:166 /26:205 /27:155 /28:40 /29:24 /30:59
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1092 1216 BellSouth Network Solutions,
6197 848 989 BellSouth Network Solutions,
18566 702 708 Covad Communications
3908 602 945 Supernet, Inc.
7018 503 1400 AT&T
701 441 1455 UUNET Technologies, Inc.
702 431 715 UUNET - Commercial IP service
7066 400 506 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 328 925 Sprint
20115 314 469 Charter Communications
27364 308 314 Armstrong Cable Services
3356 282 590 Level 3 Communications, LLC
5668 273 307 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 214 392 EarthLink, Inc.
7843 212 532 Adelphia Corp.
209 201 504 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:710 13:1 15:4 16:1 17:3
20:6 24:820 25:1 32:84 38:49 40:23
43:1 44:2 55:1 57:13 61:328 62:435
63:1879 64:1814 65:2113 66:2285 67:436 68:849
69:277 80:421 81:174 82:17 128:144 129:156
130:64 131:83 132:17 134:166 135:9 136:183
137:120 138:131 139:50 140:163 141:137 142:101
143:48 144:87 145:21 146:279 147:68 148:302
149:78 150:121 151:66 152:212 153:58 154:7
155:131 156:58 157:55 158:140 159:143 160:45
161:69 162:362 163:68 164:317 165:149 166:99
167:304 168:176 169:96 170:316 171:9 192:5425
193:2437 194:1985 195:1184 196:476 198:3582 199:2849
200:3023 202:4049 203:5304 204:2996 205:2049 206:2303
207:2515 208:2639 209:2788 210:920 211:379 212:942
213:943 214:15 215:22 216:3241 217:754 218:109
219:41 220:116 221:13 222:1
End of report
