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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125419
Prefixes after maximum aggregation: 78379
Unique aggregates announced to Internet: 59062
Total ASes present in the Internet Routing Table: 15136
Origin-only ASes present in the Internet Routing Table: 13135
Origin ASes announcing only one prefix: 5964
Transit ASes present in the Internet Routing Table: 2001
Transit-only ASes present in the Internet Routing Table: 69
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: 1229240320
Equivalent to 73 /8s, 68 /16s and 184 /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: 54386
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21244
Total APNIC prefixes after maximum aggregation: 12337
Prefixes being announced from the APNIC address blocks: 19684
Unique aggregates announced from the APNIC address blocks: 12045
APNIC Region origin ASes present in the Internet Routing Table: 1794
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 300
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 112836576
Equivalent to 6 /8s, 185 /16s and 191 /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: 77188
Total ARIN prefixes after maximum aggregation: 48000
Prefixes being announced from the ARIN address blocks: 55201
Unique aggregates announced from the ARIN address blocks: 16370
ARIN Region origin ASes present in the Internet Routing Table: 8376
ARIN Region origin ASes announcing only one prefix: 2864
ARIN Region transit ASes present in the Internet Routing Table: 791
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191799552
Equivalent to 11 /8s, 110 /16s and 161 /24s
Percentage of available ARIN address space announced: 71.5
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: 21664
Total RIPE prefixes after maximum aggregation: 15811
Prefixes being announced from the RIPE address blocks: 18219
Unique aggregates announced from the RIPE address blocks: 12056
RIPE Region origin ASes present in the Internet Routing Table: 4563
RIPE Region origin ASes announcing only one prefix: 2489
RIPE Region transit ASes present in the Internet Routing Table: 810
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 130079872
Equivalent to 7 /8s, 192 /16s and 220 /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: 5315
Total LACNIC prefixes after maximum aggregation: 2231
Prefixes being announced from the LACNIC address blocks: 4754
Unique aggregates announced from the LACNIC address blocks: 2984
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: 12507392
Equivalent to 0 /8s, 190 /16s and 217 /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 1096 1104 783 Telstra Pty Ltd
4755 415 134 73 Videsh Sanchar Nigam Ltd. Aut
703 396 383 308 UUNET
2907 388 1993 365 SINET Japan
17557 374 27 141 Pakistan Telecom
2764 317 341 285 connect.com.au pty ltd
4814 297 85 23 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 217 2478 163 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 130 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 1571 8906 1105 UUNET Technologies, Inc.
7018 1334 7173 924 AT&T
4151 1047 691 60 USDA
1239 973 3114 687 Sprint
7132 961 6475 207 Southwestern Bell Internet Se
3908 920 1571 473 Supernet, Inc.
1 726 2709 462 GENUITY
189 706 341 289 Genuity
7843 666 346 169 Adelphia Corp.
4323 584 514 169 Time Warner Communications, I
18566 553 144 7 Covad Communications
2386 548 483 287 AT&T Data Communications Serv
852 547 1108 431 Telus Advanced Communications
705 531 285 235 UUNET Technologies, Inc.
3561 506 2339 328 Cable & Wireless USA
209 495 2105 293 Qwest
7066 485 204 260 Virginia Polytechnic Institut
690 482 69 315 Merit Network
6197 478 340 196 BellSouth Network Solutions,
20115 478 192 297 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 758 2173 639 UUNET - Commercial IP service
3320 347 2004 229 Deutsche Telekom AG
3301 306 1157 296 TeliaNet Sweden
3215 304 852 174 France Telecom Transpac
680 231 2051 228 DFN-IP service G-WiN
1257 226 327 188 SWIPnet Swedish IP Network
5400 207 112 114 BT Ignite European Backbone
8220 200 365 189 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 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 106 ImpSat
7303 254 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 89 8 37 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 64 5 39 Global One Venezuela
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1047 987 USDA
7132 961 754 Southwestern Bell Internet Se
18566 553 546 Covad Communications
7843 666 497 Adelphia Corp.
3908 920 447 Supernet, Inc.
189 706 417 Genuity
4323 584 415 Time Warner Communications, I
7018 1334 410 AT&T
4755 415 342 Videsh Sanchar Nigam Ltd. Aut
1221 1096 313 Telstra Pty Ltd
705 531 296 UUNET Technologies, Inc.
4355 395 289 EarthLink, Inc.
6347 370 289 SAVVIS Communications Corpora
6198 463 288 BellSouth Network Solutions,
1239 973 286 Sprint
6197 478 282 BellSouth Network Solutions,
22927 289 276 TELEFONICA DE ARGENTINA
4814 297 274 China Telecom (Group)
1 726 264 GENUITY
2386 548 261 AT&T Data Communications Serv
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 /8:19 /9:5 /10:8 /11:13 /12:51
/13:93 /14:253 /15:465 /16:7410 /17:1674 /18:2976
/19:8388 /20:8376 /21:6003 /22:8966 /23:10595 /24:69649
/25:159 /26:183 /27:47 /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 575 920 Supernet, Inc.
18566 547 553 Covad Communications
702 466 758 UUNET - Commercial IP service
7018 464 1334 AT&T
701 437 1571 UUNET Technologies, Inc.
7843 432 666 Adelphia Corp.
690 431 482 Merit Network
7066 382 485 Virginia Polytechnic Institut
6198 362 463 BellSouth Network Solutions,
1239 360 973 Sprint
6197 356 478 BellSouth Network Solutions,
20115 341 478 Charter Communications
2386 329 548 AT&T Data Communications Serv
3320 290 347 Deutsche Telekom AG
4814 284 297 China Telecom (Group)
27364 263 270 Armstrong Cable Services
1 253 726 GENUITY
3215 227 304 France Telecom Transpac
22927 227 289 TELEFONICA DE ARGENTINA
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:695 13:1 15:4 17:3 20:8 24:814
25:1 32:87 38:121 40:19 44:2 55:1
57:16 61:440 62:601 63:1885 64:1586 65:1925
66:2409 67:166 68:368 69:120 80:359 81:155
128:154 129:178 130:44 131:81 132:11 133:2
134:152 135:4 136:113 137:106 138:108 139:66
140:141 141:110 142:98 143:44 144:104 145:17
146:270 147:94 148:289 149:72 150:44 151:78
152:244 153:56 154:2 155:111 156:46 157:42
158:126 159:147 160:37 161:74 162:143 163:77
164:306 165:143 166:94 167:331 168:398 169:57
170:307 171:7 192:5341 193:2415 194:1991 195:1028
196:460 198:3566 199:3713 200:2959 202:3798 203:5178
204:3036 205:2045 206:2359 207:2403 208:2612 209:2865
210:776 211:326 212:974 213:788 214:21 215:21
216:3225 217:631 218:89 219:21 220:94
End of report
