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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129241
Prefixes after maximum aggregation: 80402
Unique aggregates announced to Internet: 62137
Total ASes present in the Internet Routing Table: 15930
Origin-only ASes present in the Internet Routing Table: 13816
Origin ASes announcing only one prefix: 6272
Transit ASes present in the Internet Routing Table: 2114
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1245679144
Equivalent to 74 /8s, 63 /16s and 142 /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: 57575
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22855
Total APNIC prefixes after maximum aggregation: 12831
Prefixes being announced from the APNIC address blocks: 21261
Unique aggregates announced from the APNIC address blocks: 12352
APNIC Region origin ASes present in the Internet Routing Table: 1904
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: 123399936
Equivalent to 7 /8s, 90 /16s and 239 /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: 78153
Total ARIN prefixes after maximum aggregation: 48635
Prefixes being announced from the ARIN address blocks: 55749
Unique aggregates announced from the ARIN address blocks: 17400
ARIN Region origin ASes present in the Internet Routing Table: 8711
ARIN Region origin ASes announcing only one prefix: 2993
ARIN Region transit ASes present in the Internet Routing Table: 846
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197770784
Equivalent to 11 /8s, 201 /16s and 190 /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: 22751
Total RIPE prefixes after maximum aggregation: 16662
Prefixes being announced from the RIPE address blocks: 19263
Unique aggregates announced from the RIPE address blocks: 12988
RIPE Region origin ASes present in the Internet Routing Table: 4896
RIPE Region origin ASes announcing only one prefix: 2631
RIPE Region transit ASes present in the Internet Routing Table: 860
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 137082432
Equivalent to 8 /8s, 43 /16s and 182 /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: 5480
Total LACNIC prefixes after maximum aggregation: 2274
Prefixes being announced from the LACNIC address blocks: 4979
Unique aggregates announced from the LACNIC address blocks: 3287
LACNIC Region origin ASes present in the Internet Routing Table: 351
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: 13355520
Equivalent to 0 /8s, 203 /16s and 202 /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 970 1110 687 Telstra Pty Ltd
4755 397 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 368 1879 345 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 334 372 266 UUNET
17557 302 25 145 Pakistan Telecom
2764 297 290 260 connect.com.au pty ltd
17676 272 4012 33 XTAGE CORPORATION
7474 260 305 206 Optus Communications Pty Ltd
4766 241 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 1457 8686 1012 UUNET Technologies, Inc.
7018 1402 7143 976 AT&T
6198 1201 330 195 BellSouth Network Solutions,
6197 985 467 231 BellSouth Network Solutions,
3908 945 1577 511 Supernet, Inc.
1239 923 3002 666 Sprint
18566 706 176 8 Covad Communications
4323 676 559 195 Time Warner Communications, I
3356 587 10812 490 Level 3 Communications, LLC
7843 532 473 138 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
209 506 2145 294 Qwest
7066 506 206 267 Virginia Polytechnic Institut
20115 469 204 285 Charter Communications
690 411 59 276 Merit Network
705 399 184 243 UUNET Technologies, Inc.
4355 396 332 108 EarthLink, Inc.
2386 381 508 198 AT&T Data Communications Serv
6347 349 381 80 SAVVIS Communications Corpora
3549 344 680 279 Global Crossing
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
3215 194 737 100 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5400 188 174 135 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 119 853 65 TELECOM ITALIA
2856 114 1293 105 BTnet UK Regional network
25186 111 145 78 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 218 40 51 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 103 3 29 Red Universitaria Nacional
6147 86 70 19 Telefonica Del Peru
11992 83 24 34 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
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6198 1201 1006 BellSouth Network Solutions,
6197 985 754 BellSouth Network Solutions,
18566 706 698 Covad Communications
4323 676 481 Time Warner Communications, I
3908 945 434 Supernet, Inc.
7018 1402 426 AT&T
7843 532 394 Adelphia Corp.
4755 397 326 Videsh Sanchar Nigam Ltd. Aut
5668 308 292 Century Telephone
27364 314 291 Armstrong Cable Services
4355 396 288 EarthLink, Inc.
1221 970 283 Telstra Pty Ltd
22909 298 280 Comcast Cable Corporation
6347 349 269 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 923 257 Sprint
22773 287 251 Cox Communications, Inc. Atla
25844 243 241 Skadden, Arps, Slate, Meagher
6140 339 240 ImpSat
7066 506 239 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
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 /18:3180
/19:8491 /20:8899 /21:6536 /22:9382 /23:10764 /24:71168
/25:165 /26:204 /27:154 /28:40 /29:24 /30:58
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1077 1201 BellSouth Network Solutions,
6197 844 985 BellSouth Network Solutions,
18566 700 706 Covad Communications
3908 602 945 Supernet, Inc.
7018 504 1402 AT&T
701 441 1457 UUNET Technologies, Inc.
702 431 715 UUNET - Commercial IP service
7066 400 506 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 328 923 Sprint
20115 314 469 Charter Communications
27364 308 314 Armstrong Cable Services
3356 282 587 Level 3 Communications, LLC
5668 274 308 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 217 396 EarthLink, Inc.
7843 212 532 Adelphia Corp.
209 201 506 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:709 13:1 15:4 16:1 17:3
20:6 24:822 25:1 32:84 38:49 40:23
43:1 44:2 55:1 57:14 61:329 62:429
63:1879 64:1819 65:2103 66:2279 67:421 68:833
69:277 80:417 81:170 82:17 128:143 129:156
130:64 131:83 132:42 134:166 135:9 136:185
137:120 138:132 139:50 140:163 141:137 142:101
143:48 144:87 145:14 146:278 147:68 148:302
149:78 150:121 151:66 152:212 153:58 154:7
155:131 156:58 157:55 158:139 159:143 160:45
161:69 162:361 163:68 164:318 165:149 166:99
167:305 168:176 169:96 170:317 171:9 192:5422
193:2434 194:1988 195:1165 196:473 198:3569 199:2850
200:3024 202:4045 203:5282 204:2992 205:2063 206:2301
207:2516 208:2639 209:2791 210:920 211:381 212:938
213:946 214:15 215:22 216:3233 217:755 218:109
219:41 220:116 221:13 222:1
End of report
