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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 08 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125537
Prefixes after maximum aggregation: 78447
Unique aggregates announced to Internet: 59441
Total ASes present in the Internet Routing Table: 15137
Origin-only ASes present in the Internet Routing Table: 13133
Origin ASes announcing only one prefix: 5961
Transit ASes present in the Internet Routing Table: 2004
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: 255
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1228910336
Equivalent to 73 /8s, 63 /16s and 175 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54491
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21262
Total APNIC prefixes after maximum aggregation: 12346
Prefixes being announced from the APNIC address blocks: 19707
Unique aggregates announced from the APNIC address blocks: 12062
APNIC Region origin ASes present in the Internet Routing Table: 1792
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 302
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 112868832
Equivalent to 6 /8s, 186 /16s and 61 /24s
Percentage of available APNIC address space announced: 60.8
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: 77284
Total ARIN prefixes after maximum aggregation: 48049
Prefixes being announced from the ARIN address blocks: 55323
Unique aggregates announced from the ARIN address blocks: 16504
ARIN Region origin ASes present in the Internet Routing Table: 8374
ARIN Region origin ASes announcing only one prefix: 2861
ARIN Region transit ASes present in the Internet Routing Table: 790
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191501824
Equivalent to 11 /8s, 106 /16s and 22 /24s
Percentage of available ARIN address space announced: 71.3
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: 21671
Total RIPE prefixes after maximum aggregation: 15824
Prefixes being announced from the RIPE address blocks: 18219
Unique aggregates announced from the RIPE address blocks: 12049
RIPE Region origin ASes present in the Internet Routing Table: 4570
RIPE Region origin ASes announcing only one prefix: 2492
RIPE Region transit ASes present in the Internet Routing Table: 812
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 130091392
Equivalent to 7 /8s, 193 /16s and 9 /24s
Percentage of available RIPE address space announced: 70.5
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: 5312
Total LACNIC prefixes after maximum aggregation: 2228
Prefixes being announced from the LACNIC address blocks: 4754
Unique aggregates announced from the LACNIC address blocks: 2983
LACNIC Region origin ASes present in the Internet Routing Table: 334
LACNIC Region origin ASes announcing only one prefix: 88
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12507136
Equivalent to 0 /8s, 190 /16s and 216 /24s
Percentage of available LACNIC address space announced: 37.3
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 1095 1104 782 Telstra Pty Ltd
4755 413 133 71 Videsh Sanchar Nigam Ltd. Aut
703 397 383 308 UUNET
2907 388 1993 365 SINET Japan
17557 367 26 144 Pakistan Telecom
2764 317 341 285 connect.com.au pty ltd
4814 294 85 21 China Telecom (Group)
7474 271 291 207 Optus Communications Pty Ltd
17676 247 3814 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 225 2022 115 Data Communications Bureau
9583 220 33 14 Satyam Infoway Ltd.,
4766 216 2478 162 Korea Internet Exchange for "
9443 183 58 82 Primus Telecommunications
9800 179 259 57 CHINA UNICOM
9238 139 8 17 TATA ISP
4739 136 57 125 Commerical Internet eXchange
9498 131 9 18 BHARTI BT INTERNET LTD.
4716 126 729 120 TTnet
9768 126 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1570 8904 1104 UUNET Technologies, Inc.
7018 1331 7154 921 AT&T
4151 1065 691 60 USDA
1239 973 3115 685 Sprint
7132 961 6475 207 Southwestern Bell Internet Se
3908 921 1571 473 Supernet, Inc.
1 728 2694 463 GENUITY
189 706 341 289 Genuity
7843 660 345 170 Adelphia Corp.
4323 585 514 169 Time Warner Communications, I
18566 577 160 8 Covad Communications
852 550 1156 431 Telus Advanced Communications
2386 546 483 285 AT&T Data Communications Serv
705 529 286 236 UUNET Technologies, Inc.
3561 506 2339 328 Cable & Wireless USA
209 494 2105 296 Qwest
7066 485 204 260 Virginia Polytechnic Institut
6197 483 340 193 BellSouth Network Solutions,
20115 478 192 297 Charter Communications
690 476 69 312 Merit Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 758 2171 639 UUNET - Commercial IP service
3320 347 2004 229 Deutsche Telekom AG
3301 307 1157 297 TeliaNet Sweden
3215 303 852 174 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 226 327 188 SWIPnet Swedish IP Network
5400 207 112 114 BT Ignite European Backbone
8220 201 366 190 COLT Internet - International
719 193 307 125 LANLINK autonomous system
5515 187 779 160 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
20858 165 17 3 This AS will be used to conne
8708 161 44 150 Romania Data Systems S.A.
3303 141 517 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 123 1299 112 BTnet UK Regional network
3269 114 787 62 TELECOM ITALIA
3246 109 383 106 Song Networks
3352 107 748 30 Ibernet, Internet Access Netw
2874 100 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 293 98 106 ImpSat
7303 255 36 64 Telecom Argentina Stet-France
8151 220 335 122 UniNet S.A. de C.V.
11172 166 66 36 Servicios Alestra S.A de C.V
6503 141 206 101 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 96 3 30 Red Universitaria Nacional
6147 91 62 20 Telefonica Del Peru
11992 87 8 36 Integrated Systems
8065 75 8 15 Empresas Publicas de Medellin
13999 74 36 8 Mega Cable S.A. de C.V.
1916 73 306 43 Fundacao de Amparo a Pesquisa
6535 72 5 21 Chilesat Servicios Empresari
15311 72 28 36 Telefonica Empresas
4270 67 18 9 Red de Interconexion Universi
11830 67 5 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 63 5 38 Global One Venezuela
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1065 1005 USDA
7132 961 754 Southwestern Bell Internet Se
18566 577 569 Covad Communications
7843 660 490 Adelphia Corp.
3908 921 448 Supernet, Inc.
189 706 417 Genuity
4323 585 416 Time Warner Communications, I
7018 1331 410 AT&T
4755 413 342 Videsh Sanchar Nigam Ltd. Aut
1221 1095 313 Telstra Pty Ltd
705 529 293 UUNET Technologies, Inc.
6197 483 290 BellSouth Network Solutions,
6347 371 290 SAVVIS Communications Corpora
1239 973 288 Sprint
6198 463 288 BellSouth Network Solutions,
4355 392 288 EarthLink, Inc.
4814 294 273 China Telecom (Group)
1 728 265 GENUITY
2386 546 261 AT&T Data Communications Serv
27364 270 252 Armstrong Cable Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64512 PRIVATE 194.67.32.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 194.67.33.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 194.67.53.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 194.67.54.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 195.218.176.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 195.218.177.0/24 3216 Teleross, Moscow, Ru
64512 PRIVATE 195.239.204.0/24 3216 Teleross, Moscow, Ru
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:13 /12:51
/13:93 /14:253 /15:466 /16:7410 /17:1673 /18:2969
/19:8379 /20:8402 /21:6012 /22:8974 /23:10626 /24:69711
/25:157 /26:182 /27:49 /28:25 /29:13 /30:22
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 576 921 Supernet, Inc.
18566 570 577 Covad Communications
702 467 758 UUNET - Commercial IP service
7018 464 1331 AT&T
701 437 1570 UUNET Technologies, Inc.
7843 426 660 Adelphia Corp.
690 425 476 Merit Network
7066 382 485 Virginia Polytechnic Institut
6198 362 463 BellSouth Network Solutions,
1239 360 973 Sprint
6197 360 483 BellSouth Network Solutions,
20115 341 478 Charter Communications
2386 328 546 AT&T Data Communications Serv
3320 290 347 Deutsche Telekom AG
4814 280 294 China Telecom (Group)
27364 263 270 Armstrong Cable Services
1 253 728 GENUITY
3215 226 303 France Telecom Transpac
22927 224 285 TELEFONICA DE ARGENTINA
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:694 13:1 15:4 17:3 20:8 24:817
25:1 32:87 38:120 40:19 44:2 55:1
57:16 61:443 62:599 63:1879 64:1648 65:1926
66:2426 67:167 68:366 69:118 80:362 81:155
128:154 129:178 130:45 131:81 132:11 133:1
134:148 135:4 136:113 137:106 138:108 139:65
140:141 141:111 142:98 143:43 144:101 145:17
146:269 147:95 148:288 149:72 150:44 151:78
152:243 153:57 154:2 155:108 156:46 157:42
158:127 159:146 160:38 161:73 162:143 163:77
164:306 165:141 166:95 167:331 168:396 169:62
170:308 171:7 192:5341 193:2421 194:1983 195:1043
196:456 198:3557 199:3713 200:2958 202:3797 203:5174
204:3040 205:2057 206:2362 207:2398 208:2612 209:2866
210:783 211:327 212:956 213:789 214:21 215:21
216:3233 217:617 218:89 219:22 220:94
End of report
