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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 07 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119115
Prefixes after maximum aggregation: 76162
Unique aggregates announced to Internet: 56872
Total ASes present in the Internet Routing Table: 14341
Origin-only ASes present in the Internet Routing Table: 12441
Origin ASes announcing only one prefix: 5621
Transit ASes present in the Internet Routing Table: 1900
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: 18
Illegal AS announcements present in the Routing Table: 14
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 33
Number of addresses announced to Internet: 1187736601
Equivalent to 70 /8s, 203 /16s and 108 /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: 55227
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19760
Total APNIC prefixes after maximum aggregation: 11775
Prefixes being announced from the APNIC address blocks: 18296
Unique aggregates announced from the APNIC address blocks: 11202
APNIC Region origin ASes present in the Internet Routing Table: 1701
APNIC Region origin ASes announcing only one prefix: 527
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 102529696
Equivalent to 6 /8s, 28 /16s and 122 /24s
Percentage of available APNIC address space announced: 67.4
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: 73816
Total ARIN prefixes after maximum aggregation: 46982
Prefixes being announced from the ARIN address blocks: 51587
Unique aggregates announced from the ARIN address blocks: 15797
ARIN Region origin ASes present in the Internet Routing Table: 8023
ARIN Region origin ASes announcing only one prefix: 2713
ARIN Region transit ASes present in the Internet Routing Table: 760
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184886000
Equivalent to 11 /8s, 5 /16s and 34 /24s
Percentage of available ARIN address space announced: 68.9
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: 20457
Total RIPE prefixes after maximum aggregation: 15227
Prefixes being announced from the RIPE address blocks: 17046
Unique aggregates announced from the RIPE address blocks: 11342
RIPE Region origin ASes present in the Internet Routing Table: 4237
RIPE Region origin ASes announcing only one prefix: 2302
RIPE Region transit ASes present in the Internet Routing Table: 778
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121826432
Equivalent to 7 /8s, 66 /16s and 236 /24s
Percentage of available RIPE address space announced: 80.7
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: 5070
Total LACNIC prefixes after maximum aggregation: 2178
Prefixes being announced from the LACNIC address blocks: 4425
Unique aggregates announced from the LACNIC address blocks: 2875
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11788544
Equivalent to 0 /8s, 179 /16s and 225 /24s
Percentage of available LACNIC address space announced: 70.3
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 1131 1166 815 Telstra Pty Ltd
703 399 365 315 UUNET
2907 353 1767 331 SINET Japan
2764 340 341 309 connect.com.au pty ltd
17557 324 23 129 Pakistan Telecom
7474 312 281 205 Optus Communications Pty Ltd
4134 289 2408 90 Data Communications Bureau
4755 254 134 75 Videsh Sanchar Nigam Ltd. Aut
4814 246 79 15 China Telecom (Group)
3786 234 771 205 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 197 1788 148 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
4716 129 722 123 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 87 The Internet Group Limited
4739 121 56 111 Commerical Internet eXchange
9498 117 9 24 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1627 9015 1198 UUNET Technologies, Inc.
7018 1436 7681 951 AT&T
3908 1187 1635 497 Supernet, Inc.
1239 977 3149 685 Sprint
1 659 8076 436 GENUITY
852 626 1140 445 Telus Advanced Communications
7843 623 405 274 Adelphia Corp.
7046 550 841 258 UUNET Technologies, Inc.
4323 526 487 167 Time Warner Communications, I
209 520 2016 332 Qwest
690 513 75 319 Merit Network
7066 488 204 256 Virginia Polytechnic Institut
6197 456 561 104 BellSouth Network Solutions,
705 427 133 189 UUNET Technologies, Inc.
6198 422 182 196 BellSouth Network Solutions,
18566 417 96 5 Covad Communications
3561 408 2211 337 Cable & Wireless USA
4355 406 313 118 EarthLink, Inc.
3549 401 709 294 Global Crossing
15290 396 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 805 2290 670 UUNET - Commercial IP service
3301 340 1141 296 TeliaNet Sweden
3215 314 819 175 France Telecom Transpac
3320 257 1996 230 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 212 416 201 SWIPnet Swedish IP Network
719 200 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 155 42 146 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 124 18 31 MobiFon S.A.
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 315 98 104 ImpSat USA, Inc.
7303 223 36 51 Telecom Argentina Stet-France
8151 207 331 112 UniNet S.A. de C.V.
11172 173 87 33 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 108 7 13 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 76 57 23 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 37 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 31 Integrated Systems
7984 62 11 40 Global One Colombia
4926 59 4 49 Telintar S.A.
15034 58 5 33 TIBA SA
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1187 690 Supernet, Inc.
7018 1436 485 AT&T
18566 417 412 Covad Communications
4323 526 359 Time Warner Communications, I
6197 456 352 BellSouth Network Solutions,
7843 623 349 Adelphia Corp.
1221 1131 316 Telstra Pty Ltd
1580 313 300 ANOSCEUR
1239 977 292 Sprint
7046 550 292 UUNET Technologies, Inc.
6347 369 290 SAVVIS Communications Corpora
4355 406 288 EarthLink, Inc.
11492 283 282 Cable One
4151 328 270 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 346 241 Reseau Interordinateurs Scien
705 427 238 UUNET Technologies, Inc.
7066 488 232 Virginia Polytechnic Institut
4814 246 231 China Telecom (Group)
6198 422 226 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64801 PRIVATE 65.77.16.0/24 7911 Williams Communicati
64801 PRIVATE 65.77.58.0/24 7911 Williams Communicati
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64514 PRIVATE 198.188.18.0/24 2151 California State Uni
64514 PRIVATE 198.188.28.0/24 2151 California State Uni
65000 PRIVATE 203.21.203.0/24 1221 Telstra Pty Ltd
64514 PRIVATE 204.147.16.0/20 2151 California State Uni
64514 PRIVATE 205.174.208.0/20 2151 California State Uni
64514 PRIVATE 206.201.240.0/20 2151 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64514 PRIVATE 207.62.82.0/23 2151 California State Uni
64514 PRIVATE 207.62.84.0/22 2151 California State Uni
64514 PRIVATE 207.157.128.0/17 2151 California State Uni
64513 PRIVATE 207.212.206.0/23 2151 California State Uni
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
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
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
192.119.135.0/24 270 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
192.139.62.0/24 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 /11:12 /12:46
/13:92 /14:238 /15:440 /16:7316 /17:1552 /18:2816
/19:7995 /20:7772 /21:5598 /22:8474 /23:10198 /24:65852
/25:138 /26:174 /27:88 /28:78 /29:63 /30:106
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 755 1187 Supernet, Inc.
7018 500 1436 AT&T
702 493 805 UUNET - Commercial IP service
690 462 513 Merit Network
701 439 1627 UUNET Technologies, Inc.
18566 412 417 Covad Communications
7843 400 623 Adelphia Corp.
7066 385 488 Virginia Polytechnic Institut
1239 361 977 Sprint
6198 338 422 BellSouth Network Solutions,
6197 333 456 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 299 313 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 282 283 Cable One
7046 245 550 UUNET Technologies, Inc.
3215 240 314 France Telecom Transpac
20115 234 347 Charter Communications
4355 224 406 EarthLink, Inc.
7303 222 223 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:613 13:1 15:6 17:3 20:7 24:782
25:1 32:43 38:31 40:17 44:1 55:1
57:16 61:418 62:437 63:1863 64:1339 65:1764
66:1344 67:194 68:217 69:43 80:315 81:79
128:123 129:184 130:23 131:70 132:9 133:3
134:152 135:6 136:483 137:108 138:210 139:84
140:157 141:100 142:93 143:44 144:146 145:18
146:251 147:248 148:278 149:78 150:43 151:89
152:291 153:37 154:7 155:103 156:45 157:60
158:120 159:138 160:23 161:64 162:142 163:85
164:259 165:133 166:83 167:302 168:386 169:57
170:291 171:8 178:1 192:5415 193:2388 194:2015
195:904 196:454 198:3610 199:3049 200:2736 202:3606
203:4875 204:3001 205:2127 206:2330 207:2411 208:2603
209:2688 210:664 211:314 212:886 213:755 214:12
215:21 216:3143 217:559 218:71 219:14 220:31
End of report
