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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 05 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128779
Prefixes after maximum aggregation: 80275
Unique aggregates announced to Internet: 62056
Total ASes present in the Internet Routing Table: 15906
Origin-only ASes present in the Internet Routing Table: 13797
Origin ASes announcing only one prefix: 6264
Transit ASes present in the Internet Routing Table: 2109
Transit-only ASes present in the Internet Routing Table: 70
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: 1244893476
Equivalent to 74 /8s, 51 /16s and 145 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57314
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22712
Total APNIC prefixes after maximum aggregation: 12835
Prefixes being announced from the APNIC address blocks: 21105
Unique aggregates announced from the APNIC address blocks: 12462
APNIC Region origin ASes present in the Internet Routing Table: 1900
APNIC Region origin ASes announcing only one prefix: 546
APNIC Region transit ASes present in the Internet Routing Table: 304
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123255808
Equivalent to 7 /8s, 88 /16s and 188 /24s
Percentage of available APNIC address space announced: 66.4
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: 77949
Total ARIN prefixes after maximum aggregation: 48559
Prefixes being announced from the ARIN address blocks: 55663
Unique aggregates announced from the ARIN address blocks: 17361
ARIN Region origin ASes present in the Internet Routing Table: 8706
ARIN Region origin ASes announcing only one prefix: 2996
ARIN Region transit ASes present in the Internet Routing Table: 849
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197802784
Equivalent to 11 /8s, 202 /16s and 59 /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: 22692
Total RIPE prefixes after maximum aggregation: 16619
Prefixes being announced from the RIPE address blocks: 19196
Unique aggregates announced from the RIPE address blocks: 12939
RIPE Region origin ASes present in the Internet Routing Table: 4884
RIPE Region origin ASes announcing only one prefix: 2621
RIPE Region transit ASes present in the Internet Routing Table: 855
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136666688
Equivalent to 8 /8s, 37 /16s and 94 /24s
Percentage of available RIPE address space announced: 74.1
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: 5421
Total LACNIC prefixes after maximum aggregation: 2262
Prefixes being announced from the LACNIC address blocks: 4939
Unique aggregates announced from the LACNIC address blocks: 3249
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 101
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13329408
Equivalent to 0 /8s, 203 /16s and 100 /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 971 1109 688 Telstra Pty Ltd
4755 385 133 73 Videsh Sanchar Nigam Ltd. Aut
2907 367 1863 344 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 296 290 259 connect.com.au pty ltd
17557 290 21 142 Pakistan Telecom
17676 271 3996 32 XTAGE CORPORATION
7474 260 305 206 Optus Communications Pty Ltd
9583 241 43 9 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 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 58 83 Primus Telecommunications
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 8702 1015 UUNET Technologies, Inc.
7018 1403 7143 976 AT&T
6198 1216 330 195 BellSouth Network Solutions,
6197 986 467 231 BellSouth Network Solutions,
3908 941 1577 512 Supernet, Inc.
1239 895 3012 650 Sprint
18566 701 176 8 Covad Communications
4323 675 575 196 Time Warner Communications, I
3356 586 10796 489 Level 3 Communications, LLC
7843 531 473 137 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
209 503 2127 290 Qwest
7066 499 205 263 Virginia Polytechnic Institut
20115 465 202 283 Charter Communications
690 410 59 275 Merit Network
705 401 184 244 UUNET Technologies, Inc.
4355 394 332 108 EarthLink, Inc.
2386 376 507 193 AT&T Data Communications Serv
376 361 359 115 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
702 706 2089 586 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 235 358 183 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
719 193 307 123 LANLINK autonomous system
5400 187 174 134 BT Ignite European Backbone
3215 186 753 102 France Telecom Transpac
5515 186 779 148 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 159 111 155 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 113 1293 104 BTnet UK Regional network
25186 108 128 75 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 217 40 51 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
11992 88 24 36 Integrated Systems
6147 86 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6505 80 84 69 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 66 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 1216 1021 BellSouth Network Solutions,
6197 986 755 BellSouth Network Solutions,
18566 701 693 Covad Communications
4323 675 479 Time Warner Communications, I
3908 941 429 Supernet, Inc.
7018 1403 427 AT&T
7843 531 394 Adelphia Corp.
4755 385 312 Videsh Sanchar Nigam Ltd. Aut
5668 307 292 Century Telephone
27364 314 291 Armstrong Cable Services
4355 394 286 EarthLink, Inc.
1221 971 283 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 348 268 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
22773 288 251 Cox Communications, Inc. Atla
376 361 246 Reseau Interordinateurs Scien
1239 895 245 Sprint
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
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 /8:19 /9:4 /10:6 /11:12 /12:55
/13:99 /14:268 /15:469 /16:7420 /17:1756 /18:3149
/19:8454 /20:8871 /21:6527 /22:9326 /23:10718 /24:70990
/25:154 /26:204 /27:168 /28:20 /29:12 /30:53
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1092 1216 BellSouth Network Solutions,
6197 845 986 BellSouth Network Solutions,
18566 695 701 Covad Communications
3908 598 941 Supernet, Inc.
7018 505 1403 AT&T
701 441 1461 UUNET Technologies, Inc.
702 423 706 UUNET - Commercial IP service
7066 394 499 Virginia Polytechnic Institut
690 370 410 Merit Network
20115 311 465 Charter Communications
27364 308 314 Armstrong Cable Services
1239 307 895 Sprint
3356 282 586 Level 3 Communications, LLC
5668 273 307 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 215 394 EarthLink, Inc.
7843 211 531 Adelphia Corp.
209 200 503 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 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 61:300 62:423
63:1880 64:1823 65:2106 66:2280 67:430 68:847
69:270 80:418 81:170 82:19 128:141 129:156
130:64 131:81 132:18 134:152 135:9 136:168
137:118 138:130 139:50 140:164 141:137 142:98
143:46 144:84 145:14 146:276 147:65 148:300
149:77 150:121 151:66 152:212 153:58 154:7
155:129 156:58 157:55 158:139 159:142 160:45
161:67 162:362 163:67 164:320 165:148 166:99
167:304 168:176 169:96 170:322 171:9 192:5412
193:2439 194:1976 195:1169 196:473 198:3617 199:2847
200:3028 202:4024 203:5259 204:2991 205:2057 206:2287
207:2511 208:2643 209:2769 210:918 211:375 212:933
213:925 214:15 215:22 216:3238 217:749 218:108
219:41 220:117 221:13 222:1
End of report
