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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118350
Prefixes after maximum aggregation: 75697
Unique aggregates announced to Internet: 56673
Total ASes present in the Internet Routing Table: 14206
Origin-only ASes present in the Internet Routing Table: 12334
Origin ASes announcing only one prefix: 5571
Transit ASes present in the Internet Routing Table: 1872
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 3
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: 1186282797
Equivalent to 70 /8s, 181 /16s and 61 /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: 54405
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19271
Total APNIC prefixes after maximum aggregation: 11458
Prefixes being announced from the APNIC address blocks: 17832
Unique aggregates announced from the APNIC address blocks: 11097
APNIC Region origin ASes present in the Internet Routing Table: 1651
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101256608
Equivalent to 6 /8s, 9 /16s and 13 /24s
Percentage of available APNIC address space announced: 66.6
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: 73837
Total ARIN prefixes after maximum aggregation: 46897
Prefixes being announced from the ARIN address blocks: 51403
Unique aggregates announced from the ARIN address blocks: 15791
ARIN Region origin ASes present in the Internet Routing Table: 7972
ARIN Region origin ASes announcing only one prefix: 2691
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: 17
Number of ARIN addresses announced to Internet: 184241392
Equivalent to 10 /8s, 251 /16s and 76 /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: 20218
Total RIPE prefixes after maximum aggregation: 15186
Prefixes being announced from the RIPE address blocks: 16860
Unique aggregates announced from the RIPE address blocks: 11350
RIPE Region origin ASes present in the Internet Routing Table: 4198
RIPE Region origin ASes announcing only one prefix: 2276
RIPE Region transit ASes present in the Internet Routing Table: 762
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121365120
Equivalent to 7 /8s, 59 /16s and 226 /24s
Percentage of available RIPE address space announced: 80.4
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: 5022
Total LACNIC prefixes after maximum aggregation: 2156
Prefixes being announced from the LACNIC address blocks: 4343
Unique aggregates announced from the LACNIC address blocks: 2815
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11601408
Equivalent to 0 /8s, 177 /16s and 6 /24s
Percentage of available LACNIC address space announced: 69.1
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 1155 1184 834 Telstra Pty Ltd
703 394 361 312 UUNET
2907 357 1768 335 SINET Japan
2764 341 341 310 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 306 280 204 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 231 1807 154 Korea Internet Exchange for "
9583 188 33 12 Satyam Infoway Ltd.,
9443 185 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
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
4713 112 1059 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 1799 1667 506 Supernet, Inc.
701 1697 9039 1226 UUNET Technologies, Inc.
7018 1409 7133 981 AT&T
1239 934 3142 666 Sprint
1 665 8089 438 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 596 398 261 Adelphia Corp.
7046 587 861 281 UUNET Technologies, Inc.
4323 524 455 166 Time Warner Communications, I
209 522 2049 338 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 444 236 203 BellSouth Network Solutions,
705 435 134 195 UUNET Technologies, Inc.
6198 417 180 197 BellSouth Network Solutions,
3561 415 2248 356 Cable & Wireless USA
18566 415 96 5 Covad Communications
4355 405 313 118 EarthLink, Inc.
3549 403 741 295 Global Crossing
15290 391 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2309 672 UUNET - Commercial IP service
3301 344 1144 302 TeliaNet Sweden
3215 310 804 170 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 215 417 204 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 161 68 97 BT Ignite European Backbone
8708 152 42 145 Romania Data Systems S.A.
3303 146 517 145 Swisscom Ltd
20858 146 17 4 This AS will be used to conne
2856 136 1301 124 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 120 379 117 Song Networks
3269 110 752 62 TELECOM ITALIA
5511 104 193 83 France Telecom
3233 102 6 54 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 314 97 103 ImpSat USA, Inc.
8151 205 332 111 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 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 107 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 77 58 24 Telefonica Del Peru
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 72 5 16 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 57 5 40 Global One Venezuela
15034 57 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1697 471 UUNET Technologies, Inc.
7018 1409 428 AT&T
18566 415 410 Covad Communications
4323 524 358 Time Warner Communications, I
7843 596 335 Adelphia Corp.
1221 1155 321 Telstra Pty Ltd
7046 587 306 UUNET Technologies, Inc.
1580 316 301 ANOSCEUR
4151 356 298 USDA
4355 405 287 EarthLink, Inc.
6347 352 274 SAVVIS Communications Corpora
11492 273 272 Cable One
1239 934 268 Sprint
22927 289 267 TELEFONICA DE ARGENTINA
6197 444 241 BellSouth Network Solutions,
705 435 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 665 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 /16:7315 /17:1540 /18:2783
/19:7955 /20:7686 /21:5529 /22:8336 /23:9929 /24:65513
/25:143 /26:176 /27:95 /28:96 /29:70 /30:243
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 961 1799 Supernet, Inc.
702 495 809 UUNET - Commercial IP service
701 479 1697 UUNET Technologies, Inc.
7018 470 1409 AT&T
690 462 513 Merit Network
18566 408 415 Covad Communications
7066 386 489 Virginia Polytechnic Institut
7843 374 596 Adelphia Corp.
6197 334 444 BellSouth Network Solutions,
6198 334 417 BellSouth Network Solutions,
1239 323 934 Sprint
6140 302 314 ImpSat USA, Inc.
1580 301 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
7046 278 587 UUNET Technologies, Inc.
11492 272 273 Cable One
3215 236 310 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 224 405 EarthLink, Inc.
209 213 522 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:606 13:10 15:6 17:3 20:5
24:796 25:1 32:44 38:30 40:16 44:1
55:1 57:15 61:409 62:414 63:1922 64:1319
65:1694 66:1248 67:188 68:177 69:47 80:327
81:78 128:118 129:172 130:19 131:68 132:9
133:2 134:151 135:7 136:494 137:110 138:213
139:65 140:154 141:99 142:91 143:47 144:150
145:18 146:254 147:244 148:275 149:75 150:43
151:89 152:291 153:36 154:7 155:100 156:44
157:58 158:120 159:162 160:21 161:70 162:142
163:89 164:255 165:128 166:94 167:302 168:383
169:58 170:276 171:8 192:5419 193:2371 194:2016
195:875 196:453 198:3594 199:3083 200:2671 202:3542
203:4864 204:3078 205:2209 206:2334 207:2517 208:2574
209:2698 210:607 211:281 212:881 213:748 214:12
215:21 216:3078 217:534 218:66 219:14 220:4
End of report
