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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 03 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128065
Prefixes after maximum aggregation: 80107
Unique aggregates announced to Internet: 61970
Total ASes present in the Internet Routing Table: 15905
Origin-only ASes present in the Internet Routing Table: 13792
Origin ASes announcing only one prefix: 6271
Transit ASes present in the Internet Routing Table: 2113
Transit-only ASes present in the Internet Routing Table: 67
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: 1228543780
Equivalent to 73 /8s, 58 /16s and 23 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56638
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22741
Total APNIC prefixes after maximum aggregation: 12837
Prefixes being announced from the APNIC address blocks: 21131
Unique aggregates announced from the APNIC address blocks: 12487
APNIC Region origin ASes present in the Internet Routing Table: 1899
APNIC Region origin ASes announcing only one prefix: 544
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: 15
Number of APNIC addresses announced to Internet: 123154176
Equivalent to 7 /8s, 87 /16s and 47 /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: 77212
Total ARIN prefixes after maximum aggregation: 48383
Prefixes being announced from the ARIN address blocks: 54972
Unique aggregates announced from the ARIN address blocks: 17295
ARIN Region origin ASes present in the Internet Routing Table: 8708
ARIN Region origin ASes announcing only one prefix: 3003
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: 197685792
Equivalent to 11 /8s, 200 /16s and 114 /24s
Percentage of available ARIN address space announced: 73.6
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: 22679
Total RIPE prefixes after maximum aggregation: 16612
Prefixes being announced from the RIPE address blocks: 19187
Unique aggregates announced from the RIPE address blocks: 12936
RIPE Region origin ASes present in the Internet Routing Table: 4884
RIPE Region origin ASes announcing only one prefix: 2622
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: 26
Number of RIPE addresses announced to Internet: 136988224
Equivalent to 8 /8s, 42 /16s and 70 /24s
Percentage of available RIPE address space announced: 74.2
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: 5428
Total LACNIC prefixes after maximum aggregation: 2275
Prefixes being announced from the LACNIC address blocks: 4933
Unique aggregates announced from the LACNIC address blocks: 3295
LACNIC Region origin ASes present in the Internet Routing Table: 348
LACNIC Region origin ASes announcing only one prefix: 102
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: 16
Number of LACNIC addresses announced to Internet: 13318400
Equivalent to 0 /8s, 203 /16s and 57 /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 970 1109 687 Telstra Pty Ltd
4755 385 133 73 Videsh Sanchar Nigam Ltd. Aut
2907 370 1879 345 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 296 290 259 connect.com.au pty ltd
17557 291 21 140 Pakistan Telecom
9583 277 38 26 Satyam Infoway Ltd.,
17676 271 3996 32 XTAGE CORPORATION
7474 258 305 204 Optus Communications Pty 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
9929 190 160 36 China Netcom Corp.
9942 190 69 112 COMindico Australia
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 1451 8700 1009 UUNET Technologies, Inc.
7018 1403 7143 976 AT&T
6197 986 469 233 BellSouth Network Solutions,
3908 921 1574 493 Supernet, Inc.
1239 910 3028 652 Sprint
18566 700 176 8 Covad Communications
4323 674 575 196 Time Warner Communications, I
3356 588 10796 491 Level 3 Communications, LLC
6198 559 330 195 BellSouth Network Solutions,
7843 530 472 136 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
209 504 2127 291 Qwest
7066 499 205 263 Virginia Polytechnic Institut
20115 476 204 293 Charter Communications
690 411 59 276 Merit Network
705 403 184 246 UUNET Technologies, Inc.
4355 395 334 109 EarthLink, Inc.
2386 378 507 195 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 349 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 709 2120 588 UUNET - Commercial IP service
3301 294 1169 283 TeliaNet Sweden
3320 280 2005 240 Deutsche Telekom AG
8220 257 435 246 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5400 187 174 134 BT Ignite European Backbone
5515 186 779 148 Sonera Solution Autonomous Sy
3215 183 753 102 France Telecom Transpac
786 179 1874 179 The JANET IP Service
8708 152 110 148 Romania Data Systems S.A.
3303 149 556 142 Swisscom Ltd
3246 127 376 125 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
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 104 100 ImpSat
8151 235 367 123 UniNet S.A. de C.V.
7303 217 40 55 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
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
11992 76 8 36 Integrated Systems
6535 75 5 18 Chilesat Servicios Empresari
11830 74 22 29 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
6197 986 753 BellSouth Network Solutions,
18566 700 692 Covad Communications
4323 674 478 Time Warner Communications, I
3908 921 428 Supernet, Inc.
7018 1403 427 AT&T
7843 530 394 Adelphia Corp.
6198 559 364 BellSouth Network Solutions,
4755 385 312 Videsh Sanchar Nigam Ltd. Aut
27364 314 291 Armstrong Cable Services
5668 305 290 Century Telephone
4355 395 286 EarthLink, Inc.
1221 970 283 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 349 269 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 910 258 Sprint
22773 288 251 Cox Communications, Inc. Atla
9583 277 251 Satyam Infoway Ltd.,
376 361 246 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
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 /8:18 /9:4 /10:6 /11:12 /12:55
/13:99 /14:268 /15:470 /16:7426 /17:1756 /18:3141
/19:8458 /20:8854 /21:6530 /22:9342 /23:10729 /24:70274
/25:152 /26:202 /27:167 /28:20 /29:9 /30:52
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6197 845 986 BellSouth Network Solutions,
18566 694 700 Covad Communications
3908 580 921 Supernet, Inc.
7018 505 1403 AT&T
6198 435 559 BellSouth Network Solutions,
701 432 1451 UUNET Technologies, Inc.
702 424 709 UUNET - Commercial IP service
7066 394 499 Virginia Polytechnic Institut
690 371 411 Merit Network
20115 321 476 Charter Communications
1239 314 910 Sprint
27364 308 314 Armstrong Cable Services
3356 281 588 Level 3 Communications, LLC
5668 271 305 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 214 395 EarthLink, Inc.
7843 211 530 Adelphia Corp.
209 200 504 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:708 13:1 15:4 16:1 17:3
20:6 24:829 25:1 32:84 38:49 40:23
43:1 44:2 55:1 57:14 61:301 62:422
63:1882 64:1771 65:2059 66:2229 67:339 68:430
69:268 80:419 81:162 82:18 128:141 129:155
130:63 131:81 132:18 133:1 134:166 135:9
136:183 137:119 138:129 139:49 140:164 141:137
142:102 143:44 144:88 145:14 146:275 147:65
148:299 149:78 150:121 151:66 152:212 153:58
154:7 155:130 156:58 157:55 158:139 159:142
160:45 161:69 162:360 163:68 164:321 165:147
166:97 167:302 168:177 169:95 170:323 171:9
192:5330 193:2439 194:1982 195:1156 196:473 198:3608
199:2848 200:3028 202:4042 203:5260 204:2991 205:2054
206:2300 207:2516 208:2598 209:2729 210:937 211:371
212:968 213:922 214:15 215:22 216:3265 217:730
218:108 219:41 220:117 221:13 222:1
End of report
