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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118232
Prefixes after maximum aggregation: 75482
Unique aggregates announced to Internet: 55998
Total ASes present in the Internet Routing Table: 14157
Origin-only ASes present in the Internet Routing Table: 12281
Origin ASes announcing only one prefix: 5550
Transit ASes present in the Internet Routing Table: 1876
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
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: 1188461181
Equivalent to 70 /8s, 214 /16s and 122 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54024
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19329
Total APNIC prefixes after maximum aggregation: 11472
Prefixes being announced from the APNIC address blocks: 17880
Unique aggregates announced from the APNIC address blocks: 11168
APNIC Region origin ASes present in the Internet Routing Table: 1653
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101070256
Equivalent to 6 /8s, 6 /16s and 53 /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 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73763
Total ARIN prefixes after maximum aggregation: 46777
Prefixes being announced from the ARIN address blocks: 51470
Unique aggregates announced from the ARIN address blocks: 15790
ARIN Region origin ASes present in the Internet Routing Table: 7944
ARIN Region origin ASes announcing only one prefix: 2677
ARIN Region transit ASes present in the Internet Routing Table: 747
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 183815408
Equivalent to 10 /8s, 244 /16s and 204 /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: 20221
Total RIPE prefixes after maximum aggregation: 15109
Prefixes being announced from the RIPE address blocks: 16856
Unique aggregates announced from the RIPE address blocks: 10619
RIPE Region origin ASes present in the Internet Routing Table: 4181
RIPE Region origin ASes announcing only one prefix: 2266
RIPE Region transit ASes present in the Internet Routing Table: 758
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 123489472
Equivalent to 7 /8s, 92 /16s and 76 /24s
Percentage of available RIPE address space announced: 81.8
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: 4917
Total LACNIC prefixes after maximum aggregation: 2124
Prefixes being announced from the LACNIC address blocks: 4287
Unique aggregates announced from the LACNIC address blocks: 2769
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: 71
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11749632
Equivalent to 0 /8s, 179 /16s and 73 /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 1160 1185 841 Telstra Pty Ltd
703 394 364 310 UUNET
2907 357 1768 335 SINET Japan
2764 342 341 311 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 305 280 204 Optus Communications Pty Ltd
4134 299 2377 100 Data Communications Bureau
4755 277 136 73 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 231 3586 28 XTAGE CORPORATION
4766 227 1807 151 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
4621 121 11 65 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 1741 9041 1243 UUNET Technologies, Inc.
3908 1729 1652 506 Supernet, Inc.
7018 1384 7146 978 AT&T
1239 924 3172 661 Sprint
1 657 8088 432 GENUITY
852 652 1145 463 Telus Advanced Communications
7843 645 395 283 Adelphia Corp.
7046 584 860 283 UUNET Technologies, Inc.
4323 523 455 166 Time Warner Communications, I
209 521 2047 335 Qwest
690 500 73 316 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 441 236 203 BellSouth Network Solutions,
705 437 134 198 UUNET Technologies, Inc.
6198 412 178 198 BellSouth Network Solutions,
3561 409 2230 350 Cable & Wireless USA
4355 403 313 118 EarthLink, Inc.
3549 402 741 294 Global Crossing
15290 388 213 173 AT&T Canada IES
18566 388 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 813 2327 677 UUNET - Commercial IP service
3301 379 1163 334 TeliaNet Sweden
3215 312 805 172 France Telecom Transpac
3320 246 1964 223 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
719 191 306 129 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.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3269 111 752 63 TELECOM ITALIA
5511 103 193 83 France Telecom
2874 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 270 105 88 ImpSat USA, Inc.
8151 207 332 112 UniNet S.A. de C.V.
7303 183 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 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
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 30 Integrated Systems
7984 65 12 41 Global One Colombia
15034 58 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
4926 53 3 45 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1729 1223 Supernet, Inc.
7018 1384 406 AT&T
18566 388 383 Covad Communications
7843 645 362 Adelphia Corp.
4323 523 357 Time Warner Communications, I
1221 1160 319 Telstra Pty Ltd
1580 316 302 ANOSCEUR
7046 584 301 UUNET Technologies, Inc.
4151 352 292 USDA
4355 403 285 EarthLink, Inc.
6347 359 282 SAVVIS Communications Corpora
22927 289 267 TELEFONICA DE ARGENTINA
11492 275 265 Cable One
1239 924 263 Sprint
705 437 239 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
6197 441 238 BellSouth Network Solutions,
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 657 225 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 /8:18 /9:3 /10:8 /11:11 /12:46
/13:91 /14:239 /15:439 /16:7313 /17:1529 /18:2760
/19:7958 /20:7623 /21:5463 /22:8300 /23:9915 /24:65614
/25:140 /26:176 /27:90 /28:96 /29:68 /30:245
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 916 1729 Supernet, Inc.
701 510 1741 UUNET Technologies, Inc.
702 497 813 UUNET - Commercial IP service
7018 450 1384 AT&T
690 449 500 Merit Network
7843 436 645 Adelphia Corp.
7066 388 491 Virginia Polytechnic Institut
18566 381 388 Covad Communications
6197 333 441 BellSouth Network Solutions,
6198 330 412 BellSouth Network Solutions,
1239 316 924 Sprint
1580 301 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
7046 277 584 UUNET Technologies, Inc.
11492 273 275 Cable One
6140 259 270 ImpSat USA, Inc.
3215 239 312 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 12:598 13:10 15:6 17:3 20:5
24:845 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:400 62:412 63:1907 64:1297
65:1657 66:1238 67:186 68:174 69:31 80:322
81:82 128:65 129:168 130:19 131:67 132:9
133:2 134:144 135:6 136:499 137:110 138:217
139:49 140:150 141:91 142:91 143:46 144:149
145:18 146:253 147:245 148:270 149:76 150:43
151:81 152:288 153:36 154:7 155:95 156:106
157:54 158:112 159:159 160:21 161:70 162:141
163:89 164:257 165:127 166:94 167:294 168:386
169:54 170:278 171:8 192:5425 193:2392 194:2019
195:872 196:452 198:3605 199:3083 200:2625 202:3595
203:4865 204:3324 205:2196 206:2366 207:2508 208:2582
209:2656 210:623 211:274 212:875 213:759 214:12
215:21 216:3043 217:536 218:66 219:14 220:1
End of report
