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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 04 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117926
Prefixes after maximum aggregation: 75518
Unique aggregates announced to Internet: 56588
Total ASes present in the Internet Routing Table: 14169
Origin-only ASes present in the Internet Routing Table: 12277
Origin ASes announcing only one prefix: 5549
Transit ASes present in the Internet Routing Table: 1892
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1185514877
Equivalent to 70 /8s, 169 /16s and 133 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 53991
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19277
Total APNIC prefixes after maximum aggregation: 11451
Prefixes being announced from the APNIC address blocks: 17800
Unique aggregates announced from the APNIC address blocks: 11145
APNIC Region origin ASes present in the Internet Routing Table: 1653
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 295
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 100977840
Equivalent to 6 /8s, 4 /16s and 204 /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 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73603
Total ARIN prefixes after maximum aggregation: 46900
Prefixes being announced from the ARIN address blocks: 51131
Unique aggregates announced from the ARIN address blocks: 15726
ARIN Region origin ASes present in the Internet Routing Table: 7958
ARIN Region origin ASes announcing only one prefix: 2681
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 183754992
Equivalent to 10 /8s, 243 /16s and 224 /24s
Percentage of available ARIN address space announced: 68.5
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
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: 20124
Total RIPE prefixes after maximum aggregation: 15075
Prefixes being announced from the RIPE address blocks: 16764
Unique aggregates announced from the RIPE address blocks: 11189
RIPE Region origin ASes present in the Internet Routing Table: 4174
RIPE Region origin ASes announcing only one prefix: 2262
RIPE Region transit ASes present in the Internet Routing Table: 761
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 120870080
Equivalent to 7 /8s, 52 /16s and 84 /24s
Percentage of available RIPE address space announced: 80.0
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
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4922
Total LACNIC prefixes after maximum aggregation: 2092
Prefixes being announced from the LACNIC address blocks: 4299
Unique aggregates announced from the LACNIC address blocks: 2778
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11748352
Equivalent to 0 /8s, 179 /16s and 68 /24s
Percentage of available LACNIC address space announced: 70.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1161 1169 842 Telstra Pty Ltd
703 396 364 310 UUNET
2907 355 1751 334 SINET Japan
2764 343 341 312 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 306 280 203 Optus Communications Pty Ltd
4134 299 2377 100 Data Communications Bureau
4755 270 135 69 Videsh Sanchar Nigam Ltd. Aut
4814 247 79 15 China Telecom (Group)
17676 231 3586 28 XTAGE CORPORATION
4766 226 1807 150 Korea Internet Exchange for "
9583 186 33 12 Satyam Infoway Ltd.,
9443 184 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
9800 130 190 31 CHINA UNICOM
4716 129 723 123 TTnet
7657 127 26 90 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4515 112 102 47 Star Internet Services Ltd.
3786 111 681 92 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1746 9042 1247 UUNET Technologies, Inc.
7018 1390 7148 982 AT&T
3908 1241 1652 506 Supernet, Inc.
1239 916 3172 656 Sprint
1 663 8090 436 GENUITY
852 663 1145 463 Telus Advanced Communications
7843 647 395 280 Adelphia Corp.
7046 586 861 284 UUNET Technologies, Inc.
4323 526 455 167 Time Warner Communications, I
209 519 2047 333 Qwest
690 507 74 320 Merit Network
7066 490 204 258 Virginia Polytechnic Institut
6197 444 236 203 BellSouth Network Solutions,
705 439 134 199 UUNET Technologies, Inc.
3561 412 2230 353 Cable & Wireless USA
6198 411 177 197 BellSouth Network Solutions,
3549 405 742 296 Global Crossing
4355 403 313 118 EarthLink, Inc.
15290 387 213 172 AT&T Canada IES
18566 385 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 814 2327 678 UUNET - Commercial IP service
3301 378 1163 333 TeliaNet Sweden
3215 308 805 171 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 192 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 69 98 BT Ignite European Backbone
8708 147 42 141 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
20858 141 17 4 This AS will be used to conne
12302 124 18 31 MobiFon S.A.
8220 120 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3233 103 10 15 RNC - Romanian Natioanal R&D
3269 103 731 56 TELECOM ITALIA
5511 102 192 83 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 269 114 58 ImpSat USA, Inc.
8151 207 332 112 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 166 86 33 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 79 57 23 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 74 425 41 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 28 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 63 4 51 Telintar S.A.
15034 57 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1241 735 Supernet, Inc.
7018 1390 408 AT&T
18566 385 380 Covad Communications
7843 647 367 Adelphia Corp.
4323 526 359 Time Warner Communications, I
1221 1161 319 Telstra Pty Ltd
7046 586 302 UUNET Technologies, Inc.
1580 316 302 ANOSCEUR
4151 352 292 USDA
6347 366 289 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
22927 283 263 TELEFONICA DE ARGENTINA
1239 916 260 Sprint
11492 272 260 Cable One
6197 444 241 BellSouth Network Solutions,
705 439 240 UUNET Technologies, Inc.
376 342 238 Reseau Interordinateurs Scien
7066 490 232 Virginia Polytechnic Institut
4814 247 232 China Telecom (Group)
1 663 227 GENUITY
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
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
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 /8:17 /9:3 /10:8 /11:11 /12:46
/13:91 /14:239 /15:439 /16:7310 /17:1525 /18:2761
/19:7959 /20:7630 /21:5448 /22:8308 /23:9978 /24:65242
/25:145 /26:177 /27:90 /28:96 /29:71 /30:246
/31:19 /32:67
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 764 1241 Supernet, Inc.
701 511 1746 UUNET Technologies, Inc.
702 498 814 UUNET - Commercial IP service
690 456 507 Merit Network
7018 451 1390 AT&T
7843 438 647 Adelphia Corp.
7066 387 490 Virginia Polytechnic Institut
18566 378 385 Covad Communications
6197 333 444 BellSouth Network Solutions,
6198 330 411 BellSouth Network Solutions,
1239 308 916 Sprint
1580 301 316 ANOSCEUR
22927 282 283 TELEFONICA DE ARGENTINA
7046 278 586 UUNET Technologies, Inc.
11492 270 272 Cable One
6140 257 269 ImpSat USA, Inc.
3215 235 308 France Telecom Transpac
11537 226 232 University Corporation for Ad
3301 225 378 TeliaNet Sweden
4355 223 403 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:602 13:10 15:4 17:3 20:5
24:846 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:397 62:405 63:1866 64:1291
65:1654 66:1232 67:187 68:180 69:30 80:320
81:77 128:119 129:168 130:19 131:67 132:9
133:2 134:145 135:7 136:497 137:110 138:216
139:81 140:155 141:91 142:91 143:46 144:149
145:18 146:250 147:246 148:270 149:76 150:44
151:85 152:290 153:36 154:7 155:99 156:106
157:56 158:111 159:156 160:21 161:69 162:140
163:86 164:256 165:127 166:94 167:295 168:384
169:56 170:274 171:6 192:5414 193:2380 194:2006
195:858 196:456 198:3588 199:3072 200:2642 202:3544
203:4858 204:3233 205:2119 206:2361 207:2459 208:2570
209:2630 210:622 211:279 212:881 213:764 214:11
215:21 216:3032 217:515 218:66 219:13 220:1
End of report
