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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 08 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129122
Prefixes after maximum aggregation: 80376
Unique aggregates announced to Internet: 62148
Total ASes present in the Internet Routing Table: 15935
Origin-only ASes present in the Internet Routing Table: 13817
Origin ASes announcing only one prefix: 6277
Transit ASes present in the Internet Routing Table: 2118
Transit-only ASes present in the Internet Routing Table: 71
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1246165796
Equivalent to 74 /8s, 70 /16s and 251 /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: 57487
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22832
Total APNIC prefixes after maximum aggregation: 12848
Prefixes being announced from the APNIC address blocks: 21232
Unique aggregates announced from the APNIC address blocks: 12391
APNIC Region origin ASes present in the Internet Routing Table: 1906
APNIC Region origin ASes announcing only one prefix: 546
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: 123431168
Equivalent to 7 /8s, 91 /16s and 105 /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: 78054
Total ARIN prefixes after maximum aggregation: 48600
Prefixes being announced from the ARIN address blocks: 55721
Unique aggregates announced from the ARIN address blocks: 17394
ARIN Region origin ASes present in the Internet Routing Table: 8713
ARIN Region origin ASes announcing only one prefix: 2998
ARIN Region transit ASes present in the Internet Routing Table: 852
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197783840
Equivalent to 11 /8s, 201 /16s and 241 /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: 22761
Total RIPE prefixes after maximum aggregation: 16653
Prefixes being announced from the RIPE address blocks: 19272
Unique aggregates announced from the RIPE address blocks: 12983
RIPE Region origin ASes present in the Internet Routing Table: 4897
RIPE Region origin ASes announcing only one prefix: 2630
RIPE Region transit ASes present in the Internet Routing Table: 859
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 137127488
Equivalent to 8 /8s, 44 /16s and 102 /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: 5472
Total LACNIC prefixes after maximum aggregation: 2275
Prefixes being announced from the LACNIC address blocks: 4965
Unique aggregates announced from the LACNIC address blocks: 3314
LACNIC Region origin ASes present in the Internet Routing Table: 349
LACNIC Region origin ASes announcing only one prefix: 103
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: 13313792
Equivalent to 0 /8s, 203 /16s and 39 /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 968 1109 686 Telstra Pty Ltd
4755 389 133 74 Videsh Sanchar Nigam Ltd. Aut
2907 368 1879 345 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
17557 304 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 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9583 234 43 9 Satyam Infoway Ltd.,
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 181 58 81 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 1459 8702 1014 UUNET Technologies, Inc.
7018 1402 7143 976 AT&T
6198 1197 330 195 BellSouth Network Solutions,
6197 980 467 231 BellSouth Network Solutions,
3908 945 1577 511 Supernet, Inc.
1239 912 3029 653 Sprint
18566 703 176 8 Covad Communications
4323 674 559 195 Time Warner Communications, I
3356 586 10828 489 Level 3 Communications, LLC
7843 531 473 137 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
209 506 2145 294 Qwest
7066 499 205 263 Virginia Polytechnic Institut
20115 468 203 284 Charter Communications
690 411 59 276 Merit Network
705 402 184 246 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
702 714 2101 593 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
719 192 307 122 LANLINK autonomous system
3215 188 753 102 France Telecom Transpac
5400 187 174 134 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 126 18 33 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 218 40 51 Telecom Argentina Stet-France
11172 187 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 129 189 93 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
11340 103 3 29 Red Universitaria Nacional
11992 89 24 37 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 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 1197 1002 BellSouth Network Solutions,
6197 980 749 BellSouth Network Solutions,
18566 703 695 Covad Communications
4323 674 479 Time Warner Communications, I
3908 945 434 Supernet, Inc.
7018 1402 426 AT&T
7843 531 394 Adelphia Corp.
4755 389 315 Videsh Sanchar Nigam Ltd. Aut
5668 309 293 Century Telephone
27364 314 291 Armstrong Cable Services
4355 396 288 EarthLink, Inc.
1221 968 282 Telstra Pty Ltd
22909 297 279 Comcast Cable Corporation
6347 349 269 SAVVIS Communications Corpora
1239 912 259 Sprint
4134 364 259 Data Communications Bureau
22773 287 251 Cox Communications, Inc. Atla
25844 243 241 Skadden, Arps, Slate, Meagher
6140 339 240 ImpSat
17676 272 239 XTAGE CORPORATION
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
31818 UNALLOCATED 208.50.77.0/24 13818 Phoenix Internationa
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 /15:470 /16:7435 /17:1775 /18:3180
/19:8483 /20:8901 /21:6542 /22:9373 /23:10759 /24:71134
/25:148 /26:203 /27:151 /28:18 /29:10 /30:53
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1073 1197 BellSouth Network Solutions,
6197 839 980 BellSouth Network Solutions,
18566 697 703 Covad Communications
3908 602 945 Supernet, Inc.
7018 504 1402 AT&T
701 440 1459 UUNET Technologies, Inc.
702 430 714 UUNET - Commercial IP service
7066 394 499 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 316 912 Sprint
20115 313 468 Charter Communications
27364 308 314 Armstrong Cable Services
3356 282 586 Level 3 Communications, LLC
5668 275 309 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 217 396 EarthLink, Inc.
7843 211 531 Adelphia Corp.
209 201 506 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:707 13:1 15:4 16:1 17:3
20:6 24:821 25:1 32:84 38:49 40:23
43:1 44:2 55:1 57:14 61:318 62:428
63:1883 64:1823 65:2104 66:2280 67:431 68:826
69:272 74:1 80:419 81:170 82:18 128:143
129:156 130:64 131:81 132:43 134:166 135:9
136:184 137:118 138:131 139:50 140:163 141:137
142:102 143:46 144:81 145:14 146:277 147:65
148:300 149:78 150:121 151:66 152:217 153:58
154:7 155:130 156:58 157:54 158:139 159:144
160:45 161:69 162:359 163:68 164:318 165:149
166:103 167:305 168:176 169:96 170:339 171:9
192:5422 193:2440 194:1983 195:1165 196:478 198:3568
199:2851 200:3015 202:4021 203:5280 204:2993 205:2063
206:2301 207:2512 208:2644 209:2785 210:915 211:382
212:932 213:948 214:15 215:22 216:3230 217:758
218:109 219:41 220:117 221:13 222:1
End of report
