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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119544
Prefixes after maximum aggregation: 76260
Unique aggregates announced to Internet: 57040
Total ASes present in the Internet Routing Table: 14361
Origin-only ASes present in the Internet Routing Table: 12476
Origin ASes announcing only one prefix: 5639
Transit ASes present in the Internet Routing Table: 1885
Transit-only ASes present in the Internet Routing Table: 60
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 30
Number of addresses announced to Internet: 1189725465
Equivalent to 70 /8s, 233 /16s and 197 /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: 55563
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19868
Total APNIC prefixes after maximum aggregation: 11860
Prefixes being announced from the APNIC address blocks: 18352
Unique aggregates announced from the APNIC address blocks: 11324
APNIC Region origin ASes present in the Internet Routing Table: 1704
APNIC Region origin ASes announcing only one prefix: 526
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: 13
Number of APNIC addresses announced to Internet: 103719328
Equivalent to 6 /8s, 46 /16s and 161 /24s
Percentage of available APNIC address space announced: 68.2
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: 74030
Total ARIN prefixes after maximum aggregation: 46975
Prefixes being announced from the ARIN address blocks: 51731
Unique aggregates announced from the ARIN address blocks: 15835
ARIN Region origin ASes present in the Internet Routing Table: 8034
ARIN Region origin ASes announcing only one prefix: 2724
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185256432
Equivalent to 11 /8s, 10 /16s and 201 /24s
Percentage of available ARIN address space announced: 69.0
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: 20544
Total RIPE prefixes after maximum aggregation: 15250
Prefixes being announced from the RIPE address blocks: 17130
Unique aggregates announced from the RIPE address blocks: 11372
RIPE Region origin ASes present in the Internet Routing Table: 4243
RIPE Region origin ASes announcing only one prefix: 2310
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121945472
Equivalent to 7 /8s, 68 /16s and 189 /24s
Percentage of available RIPE address space announced: 80.8
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, 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: 5092
Total LACNIC prefixes after maximum aggregation: 2175
Prefixes being announced from the LACNIC address blocks: 4437
Unique aggregates announced from the LACNIC address blocks: 2887
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 79
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: 11
Number of LACNIC addresses announced to Internet: 11796992
Equivalent to 0 /8s, 180 /16s and 2 /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 1137 1185 840 Telstra Pty Ltd
703 399 364 315 UUNET
2907 355 1767 332 SINET Japan
2764 340 341 309 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 312 281 205 Optus Communications Pty Ltd
4134 289 2408 90 Data Communications Bureau
4755 259 134 74 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
3786 235 772 204 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 200 2075 149 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 1625 9015 1197 UUNET Technologies, Inc.
7018 1437 7681 952 AT&T
3908 1187 1635 498 Supernet, Inc.
1239 972 3145 680 Sprint
1 665 8076 438 GENUITY
852 627 1140 445 Telus Advanced Communications
7843 624 407 266 Adelphia Corp.
7046 554 841 262 UUNET Technologies, Inc.
4323 528 488 168 Time Warner Communications, I
209 521 2118 329 Qwest
690 513 75 319 Merit Network
7066 492 204 254 Virginia Polytechnic Institut
6197 458 561 104 BellSouth Network Solutions,
705 427 133 186 UUNET Technologies, Inc.
6198 422 182 196 BellSouth Network Solutions,
18566 420 96 5 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 401 709 294 Global Crossing
3561 396 2210 325 Cable & Wireless USA
15290 396 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2290 671 UUNET - Commercial IP service
3301 341 1141 297 TeliaNet Sweden
3215 315 819 175 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 160 68 97 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 226 36 52 Telecom Argentina Stet-France
8151 207 331 112 UniNet S.A. de C.V.
11172 175 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 109 7 14 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 80 2 31 Red Universitaria Nacional
6147 77 58 20 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
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 62 11 40 Global One Colombia
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1187 689 Supernet, Inc.
7018 1437 485 AT&T
18566 420 415 Covad Communications
4323 528 360 Time Warner Communications, I
7843 624 358 Adelphia Corp.
6197 458 354 BellSouth Network Solutions,
1580 316 303 ANOSCEUR
1221 1137 297 Telstra Pty Ltd
1239 972 292 Sprint
7046 554 292 UUNET Technologies, Inc.
6347 370 291 SAVVIS Communications Corpora
4355 407 289 EarthLink, Inc.
11492 284 283 Cable One
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 427 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 492 238 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 665 227 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
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
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
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
192.156.164.0/24 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 /11:13 /12:45
/13:92 /14:241 /15:441 /16:7321 /17:1555 /18:2817
/19:8006 /20:7778 /21:5614 /22:8517 /23:10234 /24:66125
/25:139 /26:173 /27:91 /28:83 /29:67 /30:113
/31:7 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 755 1187 Supernet, Inc.
7018 498 1437 AT&T
702 496 808 UUNET - Commercial IP service
690 462 513 Merit Network
701 440 1625 UUNET Technologies, Inc.
18566 415 420 Covad Communications
7843 400 624 Adelphia Corp.
7066 390 492 Virginia Polytechnic Institut
1239 359 972 Sprint
6198 338 422 BellSouth Network Solutions,
6197 335 458 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 302 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 283 284 Cable One
7046 245 554 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 230 343 Charter Communications
4355 225 407 EarthLink, Inc.
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:619 13:1 15:6 17:3 20:7 24:783
25:1 32:43 38:32 40:17 44:1 55:1
57:16 61:418 62:438 63:1849 64:1350 65:1769
66:1347 67:196 68:218 69:43 80:319 81:79
128:123 129:185 130:23 131:70 132:9 133:4
134:154 135:6 136:493 137:109 138:210 139:84
140:182 141:100 142:93 143:44 144:148 145:18
146:251 147:249 148:278 149:78 150:42 151:89
152:291 153:37 154:7 155:103 156:101 157:60
158:120 159:138 160:24 161:64 162:143 163:84
164:259 165:136 166:82 167:302 168:388 169:57
170:290 171:8 178:1 192:5406 193:2405 194:2018
195:911 196:454 198:3605 199:3049 200:2750 202:3618
203:4893 204:3001 205:2133 206:2369 207:2412 208:2626
209:2695 210:660 211:316 212:889 213:744 214:12
215:22 216:3160 217:568 218:71 219:14 220:31
End of report
