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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 29 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127996
Prefixes after maximum aggregation: 79986
Unique aggregates announced to Internet: 61681
Total ASes present in the Internet Routing Table: 15892
Origin-only ASes present in the Internet Routing Table: 13788
Origin ASes announcing only one prefix: 6257
Transit ASes present in the Internet Routing Table: 2104
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1227223588
Equivalent to 73 /8s, 37 /16s and 242 /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: 56527
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22735
Total APNIC prefixes after maximum aggregation: 12799
Prefixes being announced from the APNIC address blocks: 21137
Unique aggregates announced from the APNIC address blocks: 12393
APNIC Region origin ASes present in the Internet Routing Table: 1903
APNIC Region origin ASes announcing only one prefix: 548
APNIC Region transit ASes present in the Internet Routing Table: 305
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 122871808
Equivalent to 7 /8s, 82 /16s and 224 /24s
Percentage of available APNIC address space announced: 66.2
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: 77225
Total ARIN prefixes after maximum aggregation: 48336
Prefixes being announced from the ARIN address blocks: 55014
Unique aggregates announced from the ARIN address blocks: 17242
ARIN Region origin ASes present in the Internet Routing Table: 8705
ARIN Region origin ASes announcing only one prefix: 2997
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197274400
Equivalent to 11 /8s, 194 /16s and 43 /24s
Percentage of available ARIN address space announced: 73.5
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: 22615
Total RIPE prefixes after maximum aggregation: 16571
Prefixes being announced from the RIPE address blocks: 19130
Unique aggregates announced from the RIPE address blocks: 12930
RIPE Region origin ASes present in the Internet Routing Table: 4868
RIPE Region origin ASes announcing only one prefix: 2610
RIPE Region transit ASes present in the Internet Routing Table: 856
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136603712
Equivalent to 8 /8s, 36 /16s and 104 /24s
Percentage of available RIPE address space announced: 74.0
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: 5414
Total LACNIC prefixes after maximum aggregation: 2280
Prefixes being announced from the LACNIC address blocks: 4895
Unique aggregates announced from the LACNIC address blocks: 3191
LACNIC Region origin ASes present in the Internet Routing Table: 347
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: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13308416
Equivalent to 0 /8s, 203 /16s and 18 /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 975 1110 690 Telstra Pty Ltd
4755 384 135 72 Videsh Sanchar Nigam Ltd. Aut
2907 374 1879 348 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 333 372 265 UUNET
2764 297 322 260 connect.com.au pty ltd
17557 291 21 140 Pakistan Telecom
7474 269 306 209 Optus Communications Pty Ltd
17676 265 3980 26 XTAGE CORPORATION
9583 261 38 27 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9929 188 160 36 China Netcom Corp.
9942 188 69 110 COMindico Australia
9443 183 58 83 Primus Telecommunications
9498 182 20 16 BHARTI BT INTERNET LTD.
4538 176 1634 23 China Education and Research
17642 157 40 118 RequestDSL BGP AS# for Sydney
4739 139 58 128 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1459 8703 1016 UUNET Technologies, Inc.
7018 1395 7107 973 AT&T
6197 986 443 246 BellSouth Network Solutions,
3908 916 1573 492 Supernet, Inc.
1239 903 3029 650 Sprint
18566 694 176 8 Covad Communications
4323 671 575 195 Time Warner Communications, I
3356 570 10730 476 Level 3 Communications, LLC
6198 557 330 195 BellSouth Network Solutions,
7843 529 466 134 Adelphia Corp.
852 513 1123 407 Telus Advanced Communications
209 502 2127 289 Qwest
7066 493 205 263 Virginia Polytechnic Institut
20115 475 205 296 Charter Communications
690 411 59 276 Merit Network
705 411 185 252 UUNET Technologies, Inc.
4355 396 334 109 EarthLink, Inc.
2386 372 507 191 AT&T Data Communications Serv
376 360 359 115 Reseau Interordinateurs Scien
6347 356 397 81 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 710 2121 589 UUNET - Commercial IP service
3301 296 1169 283 TeliaNet Sweden
3320 272 1989 232 Deutsche Telekom AG
8220 254 433 243 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 226 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
3215 188 737 106 France Telecom Transpac
5515 186 779 148 Sonera Solution Autonomous Sy
5400 184 173 133 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 156 110 153 Romania Data Systems S.A.
3303 148 540 141 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 126 376 124 Song Networks
3269 119 853 65 TELECOM ITALIA
2856 113 1293 104 BTnet UK Regional network
25186 104 128 72 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 340 104 101 ImpSat
8151 233 366 121 UniNet S.A. de C.V.
7303 216 40 58 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 103 3 36 Red Universitaria Nacional
11992 88 8 37 Integrated Systems
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6505 78 81 68 Global One Communicaoes Ltda
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 73 21 28 Instituto Costarricense de El
7927 67 6 40 Global One Venezuela
4270 66 18 9 Red de Interconexion Universi
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 986 740 BellSouth Network Solutions,
18566 694 686 Covad Communications
4323 671 476 Time Warner Communications, I
3908 916 424 Supernet, Inc.
7018 1395 422 AT&T
7843 529 395 Adelphia Corp.
6198 557 362 BellSouth Network Solutions,
4755 384 312 Videsh Sanchar Nigam Ltd. Aut
27364 314 291 Armstrong Cable Services
4355 396 287 EarthLink, Inc.
1221 975 285 Telstra Pty Ltd
5668 300 284 Century Telephone
22909 295 278 Comcast Cable Corporation
6347 356 275 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 903 253 Sprint
22773 285 250 Cox Communications, Inc. Atla
376 360 245 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
6140 340 239 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
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
/13:97 /14:266 /15:471 /16:7439 /17:1759 /18:3144
/19:8541 /20:8841 /21:6485 /22:9320 /23:10689 /24:70224
/25:148 /26:204 /27:169 /28:20 /29:9 /30:53
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6197 845 986 BellSouth Network Solutions,
18566 688 694 Covad Communications
3908 577 916 Supernet, Inc.
7018 503 1395 AT&T
701 436 1459 UUNET Technologies, Inc.
6198 433 557 BellSouth Network Solutions,
702 426 710 UUNET - Commercial IP service
7066 388 493 Virginia Polytechnic Institut
690 371 411 Merit Network
20115 318 475 Charter Communications
1239 313 903 Sprint
27364 308 314 Armstrong Cable Services
3356 277 570 Level 3 Communications, LLC
5668 266 300 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
4355 214 396 EarthLink, Inc.
7843 213 529 Adelphia Corp.
3320 211 272 Deutsche Telekom AG
209 199 502 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 24:824 25:1 32:84 38:47 40:23
43:1 44:2 55:1 57:14 61:323 62:418
63:1876 64:1766 65:2063 66:2213 67:334 68:422
69:269 80:419 81:132 82:17 128:142 129:167
130:61 131:84 132:18 133:1 134:169 135:9
136:185 137:117 138:129 139:49 140:163 141:138
142:100 143:44 144:89 145:14 146:276 147:63
148:299 149:78 150:122 151:66 152:212 153:54
154:7 155:128 156:58 157:54 158:134 159:142
160:45 161:66 162:362 163:69 164:316 165:147
166:103 167:305 168:177 169:97 170:325 171:9
192:5332 193:2449 194:1986 195:1157 196:465 198:3598
199:2838 200:3005 202:4003 203:5293 204:2995 205:2047
206:2323 207:2507 208:2607 209:2726 210:925 211:374
212:967 213:931 214:16 215:22 216:3282 217:731
218:110 219:39 220:116 221:12 222:1
End of report
