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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 11 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118609
Prefixes after maximum aggregation: 75621
Unique aggregates announced to Internet: 56568
Total ASes present in the Internet Routing Table: 14201
Origin-only ASes present in the Internet Routing Table: 12314
Origin ASes announcing only one prefix: 5575
Transit ASes present in the Internet Routing Table: 1887
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 39
Number of addresses announced to Internet: 1186412461
Equivalent to 70 /8s, 183 /16s and 55 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54385
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19350
Total APNIC prefixes after maximum aggregation: 11470
Prefixes being announced from the APNIC address blocks: 17906
Unique aggregates announced from the APNIC address blocks: 11149
APNIC Region origin ASes present in the Internet Routing Table: 1656
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101177760
Equivalent to 6 /8s, 7 /16s and 217 /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: 74033
Total ARIN prefixes after maximum aggregation: 46884
Prefixes being announced from the ARIN address blocks: 51578
Unique aggregates announced from the ARIN address blocks: 15752
ARIN Region origin ASes present in the Internet Routing Table: 7965
ARIN Region origin ASes announcing only one prefix: 2689
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184129776
Equivalent to 10 /8s, 249 /16s and 152 /24s
Percentage of available ARIN address space announced: 68.6
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
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: 20233
Total RIPE prefixes after maximum aggregation: 15151
Prefixes being announced from the RIPE address blocks: 16857
Unique aggregates announced from the RIPE address blocks: 11270
RIPE Region origin ASes present in the Internet Routing Table: 4198
RIPE Region origin ASes announcing only one prefix: 2279
RIPE Region transit ASes present in the Internet Routing Table: 764
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121210624
Equivalent to 7 /8s, 57 /16s and 135 /24s
Percentage of available RIPE address space announced: 80.3
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, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4989
Total LACNIC prefixes after maximum aggregation: 2116
Prefixes being announced from the LACNIC address blocks: 4307
Unique aggregates announced from the LACNIC address blocks: 2789
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: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11768320
Equivalent to 0 /8s, 179 /16s and 146 /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 1156 1184 839 Telstra Pty Ltd
703 392 362 308 UUNET
2907 357 1768 335 SINET Japan
2764 341 341 310 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 307 280 205 Optus Communications Pty Ltd
4134 298 2376 99 Data Communications Bureau
4755 269 136 64 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 232 3602 27 XTAGE CORPORATION
4766 229 1807 152 Korea Internet Exchange for "
9583 187 33 12 Satyam Infoway Ltd.,
9443 184 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
9800 135 191 33 CHINA UNICOM
4716 129 723 123 TTnet
7657 127 26 90 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 117 11 66 UNINET-TH
4713 112 1059 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 1774 1651 504 Supernet, Inc.
701 1729 9040 1234 UUNET Technologies, Inc.
7018 1401 7133 985 AT&T
1239 929 3141 663 Sprint
1 667 8105 437 GENUITY
852 648 1145 462 Telus Advanced Communications
7843 645 398 282 Adelphia Corp.
7046 586 861 281 UUNET Technologies, Inc.
4323 525 455 167 Time Warner Communications, I
209 522 2049 336 Qwest
690 510 75 317 Merit Network
7066 490 204 258 Virginia Polytechnic Institut
6197 444 236 203 BellSouth Network Solutions,
705 434 134 194 UUNET Technologies, Inc.
6198 415 178 198 BellSouth Network Solutions,
18566 414 96 5 Covad Communications
3561 408 2230 355 Cable & Wireless USA
4355 404 313 118 EarthLink, Inc.
3549 403 741 295 Global Crossing
15290 388 213 173 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 811 2309 674 UUNET - Commercial IP service
3301 355 1177 313 TeliaNet Sweden
3215 309 804 169 France Telecom Transpac
3320 247 1962 224 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 70 98 BT Ignite European Backbone
8708 152 42 145 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 143 517 142 Swisscom Ltd
2856 142 1302 130 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 104 193 83 France Telecom
3233 103 10 15 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 314 107 68 ImpSat USA, Inc.
8151 204 316 110 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 171 87 34 Servicios Alestra S.A de C.V
6503 157 207 109 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
11340 80 2 31 Red Universitaria Nacional
6147 78 59 21 Telefonica Del Peru
1916 74 425 41 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 69 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
4926 60 4 50 Telintar S.A.
7927 56 5 39 Global One Venezuela
15034 56 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1729 495 UUNET Technologies, Inc.
7018 1401 416 AT&T
18566 414 409 Covad Communications
7843 645 363 Adelphia Corp.
4323 525 358 Time Warner Communications, I
1221 1156 317 Telstra Pty Ltd
7046 586 305 UUNET Technologies, Inc.
1580 317 302 ANOSCEUR
4151 351 293 USDA
4355 404 286 EarthLink, Inc.
6347 352 275 SAVVIS Communications Corpora
11492 274 273 Cable One
22927 289 267 TELEFONICA DE ARGENTINA
1239 929 266 Sprint
6140 314 246 ImpSat USA, Inc.
6197 444 241 BellSouth Network Solutions,
705 434 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
4814 249 234 China Telecom (Group)
7066 490 232 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
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
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
192.68.128.0/22 1239 Sprint
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 /14:238 /15:440 /16:7319 /17:1543 /18:2777
/19:7974 /20:7662 /21:5524 /22:8334 /23:9957 /24:65768
/25:141 /26:173 /27:91 /28:96 /29:69 /30:242
/31:19 /32:66
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 949 1774 Supernet, Inc.
701 506 1729 UUNET Technologies, Inc.
702 497 811 UUNET - Commercial IP service
690 459 510 Merit Network
7018 458 1401 AT&T
7843 432 645 Adelphia Corp.
18566 407 414 Covad Communications
7066 387 490 Virginia Polytechnic Institut
6197 334 444 BellSouth Network Solutions,
6198 333 415 BellSouth Network Solutions,
1239 320 929 Sprint
1580 302 317 ANOSCEUR
6140 301 314 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
7046 278 586 UUNET Technologies, Inc.
11492 271 274 Cable One
3215 236 309 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 224 404 EarthLink, Inc.
209 211 522 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:606 13:10 15:6 17:3 20:5
24:842 25:1 32:46 38:30 40:16 44:1
55:1 57:15 61:400 62:413 63:1911 64:1313
65:1678 66:1241 67:189 68:176 69:31 80:321
81:82 128:117 129:170 130:19 131:67 132:9
133:2 134:152 135:7 136:496 137:110 138:212
139:65 140:154 141:100 142:92 143:47 144:149
145:18 146:255 147:247 148:275 149:76 150:43
151:90 152:291 153:36 154:7 155:99 156:106
157:55 158:116 159:161 160:21 161:70 162:141
163:88 164:255 165:128 166:94 167:299 168:383
169:56 170:277 171:8 192:5422 193:2375 194:2023
195:880 196:454 198:3603 199:3071 200:2639 202:3593
203:4873 204:3301 205:2199 206:2351 207:2496 208:2585
209:2660 210:620 211:280 212:869 213:757 214:11
215:20 216:3073 217:529 218:66 219:14 220:3
End of report
