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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 05 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118409
Prefixes after maximum aggregation: 75556
Unique aggregates announced to Internet: 56591
Total ASes present in the Internet Routing Table: 14166
Origin-only ASes present in the Internet Routing Table: 12271
Origin ASes announcing only one prefix: 5549
Transit ASes present in the Internet Routing Table: 1895
Transit-only ASes present in the Internet Routing Table: 59
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1186060669
Equivalent to 70 /8s, 177 /16s and 217 /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: 54162
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19313
Total APNIC prefixes after maximum aggregation: 11464
Prefixes being announced from the APNIC address blocks: 17831
Unique aggregates announced from the APNIC address blocks: 11161
APNIC Region origin ASes present in the Internet Routing Table: 1654
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101032112
Equivalent to 6 /8s, 5 /16s and 160 /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: 73966
Total ARIN prefixes after maximum aggregation: 46890
Prefixes being announced from the ARIN address blocks: 51519
Unique aggregates announced from the ARIN address blocks: 15744
ARIN Region origin ASes present in the Internet Routing Table: 7952
ARIN Region origin ASes announcing only one prefix: 2681
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 183849968
Equivalent to 10 /8s, 245 /16s and 83 /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: 20201
Total RIPE prefixes after maximum aggregation: 15106
Prefixes being announced from the RIPE address blocks: 16826
Unique aggregates announced from the RIPE address blocks: 11217
RIPE Region origin ASes present in the Internet Routing Table: 4180
RIPE Region origin ASes announcing only one prefix: 2263
RIPE Region transit ASes present in the Internet Routing Table: 763
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121082048
Equivalent to 7 /8s, 55 /16s and 144 /24s
Percentage of available RIPE address space announced: 80.2
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
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: 4927
Total LACNIC prefixes after maximum aggregation: 2096
Prefixes being announced from the LACNIC address blocks: 4309
Unique aggregates announced from the LACNIC address blocks: 2785
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: 73
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11756032
Equivalent to 0 /8s, 179 /16s and 98 /24s
Percentage of available LACNIC address space announced: 70.1
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 1162 1185 844 Telstra Pty Ltd
703 392 364 307 UUNET
2907 355 1767 333 SINET Japan
2764 342 341 311 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 305 280 203 Optus Communications Pty Ltd
4134 299 2377 100 Data Communications Bureau
4755 279 136 75 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 231 3586 28 XTAGE CORPORATION
4766 226 1807 150 Korea Internet Exchange for "
9583 185 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
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
3786 111 681 92 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1745 9042 1247 UUNET Technologies, Inc.
3908 1684 1652 506 Supernet, Inc.
7018 1387 7148 980 AT&T
1239 922 3172 660 Sprint
852 663 1145 463 Telus Advanced Communications
1 662 8090 437 GENUITY
7843 646 395 287 Adelphia Corp.
7046 586 861 284 UUNET Technologies, Inc.
4323 527 455 168 Time Warner Communications, I
209 521 2047 335 Qwest
690 508 74 321 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 445 236 203 BellSouth Network Solutions,
705 429 133 190 UUNET Technologies, Inc.
3561 413 2230 354 Cable & Wireless USA
6198 411 177 197 BellSouth Network Solutions,
4355 403 313 118 EarthLink, Inc.
3549 402 741 294 Global Crossing
15290 388 213 173 AT&T Canada IES
18566 387 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 815 2327 679 UUNET - Commercial IP service
3301 379 1163 334 TeliaNet Sweden
3215 310 805 171 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 151 42 145 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
20858 143 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
3269 111 752 63 TELECOM ITALIA
3233 103 10 15 RNC - Romanian Natioanal R&D
5511 103 193 83 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 269 113 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 81 59 21 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 73 409 40 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 62 4 50 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 1684 1178 Supernet, Inc.
7018 1387 407 AT&T
18566 387 382 Covad Communications
7843 646 359 Adelphia Corp.
4323 527 359 Time Warner Communications, I
1221 1162 318 Telstra Pty Ltd
7046 586 302 UUNET Technologies, Inc.
1580 316 302 ANOSCEUR
4151 353 295 USDA
6347 366 289 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
22927 284 265 TELEFONICA DE ARGENTINA
1239 922 262 Sprint
11492 272 260 Cable One
6197 445 242 BellSouth Network Solutions,
705 429 239 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 662 225 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
64000 RESERVED 200.63.214.0/24 14522 SatNet S.A.
63000 RESERVED 200.63.217.0/24 14522 SatNet S.A.
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
160.213.122.0/23 25440 Nestle European Data Center
160.213.248.0/21 25440 Nestle European Data Center
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 /16:7315 /17:1526 /18:2762
/19:7958 /20:7645 /21:5453 /22:8307 /23:9987 /24:65695
/25:142 /26:177 /27:90 /28:96 /29:70 /30:245
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 896 1684 Supernet, Inc.
701 509 1745 UUNET Technologies, Inc.
702 499 815 UUNET - Commercial IP service
690 457 508 Merit Network
7018 450 1387 AT&T
7843 437 646 Adelphia Corp.
7066 388 491 Virginia Polytechnic Institut
18566 380 387 Covad Communications
6197 334 445 BellSouth Network Solutions,
6198 330 411 BellSouth Network Solutions,
1239 312 922 Sprint
1580 301 316 ANOSCEUR
22927 283 284 TELEFONICA DE ARGENTINA
7046 278 586 UUNET Technologies, Inc.
11492 270 272 Cable One
6140 257 269 ImpSat USA, Inc.
3215 237 310 France Telecom Transpac
3301 226 379 TeliaNet Sweden
11537 226 232 University Corporation for Ad
4355 223 403 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:602 13:10 15:6 17:3 20:5
24:844 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:398 62:409 63:1900 64:1300
65:1659 66:1239 67:188 68:179 69:30 80:321
81:78 128:117 129:171 130:19 131:67 132:9
133:2 134:145 135:7 136:497 137:110 138:217
139:66 140:137 141:91 142:91 143:46 144:149
145:18 146:249 147:245 148:270 149:76 150:44
151:81 152:290 153:36 154:7 155:100 156:106
157:54 158:111 159:157 160:21 161:70 162:140
163:88 164:257 165:127 166:94 167:294 168:386
169:54 170:276 171:8 192:5433 193:2379 194:2011
195:874 196:457 198:3610 199:3080 200:2649 202:3583
203:4843 204:3328 205:2208 206:2367 207:2503 208:2583
209:2654 210:623 211:279 212:879 213:767 214:12
215:21 216:3060 217:532 218:66 219:14 220:1
End of report
