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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 16 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119685
Prefixes after maximum aggregation: 76390
Unique aggregates announced to Internet: 57429
Total ASes present in the Internet Routing Table: 14409
Origin-only ASes present in the Internet Routing Table: 12525
Origin ASes announcing only one prefix: 5656
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 59
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: 6
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: 1190496537
Equivalent to 70 /8s, 245 /16s and 137 /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: 55664
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19974
Total APNIC prefixes after maximum aggregation: 11861
Prefixes being announced from the APNIC address blocks: 18476
Unique aggregates announced from the APNIC address blocks: 11347
APNIC Region origin ASes present in the Internet Routing Table: 1707
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 285
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104165024
Equivalent to 6 /8s, 53 /16s and 110 /24s
Percentage of available APNIC address space announced: 68.5
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: 74034
Total ARIN prefixes after maximum aggregation: 47080
Prefixes being announced from the ARIN address blocks: 51825
Unique aggregates announced from the ARIN address blocks: 16015
ARIN Region origin ASes present in the Internet Routing Table: 8064
ARIN Region origin ASes announcing only one prefix: 2738
ARIN Region transit ASes present in the Internet Routing Table: 759
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185564912
Equivalent to 11 /8s, 15 /16s and 126 /24s
Percentage of available ARIN address space announced: 69.1
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: 20542
Total RIPE prefixes after maximum aggregation: 15260
Prefixes being announced from the RIPE address blocks: 17125
Unique aggregates announced from the RIPE address blocks: 11438
RIPE Region origin ASes present in the Internet Routing Table: 4258
RIPE Region origin ASes announcing only one prefix: 2315
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: 122206592
Equivalent to 7 /8s, 72 /16s and 185 /24s
Percentage of available RIPE address space announced: 80.9
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: 5131
Total LACNIC prefixes after maximum aggregation: 2189
Prefixes being announced from the LACNIC address blocks: 4478
Unique aggregates announced from the LACNIC address blocks: 2945
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 81
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: 17
Number of LACNIC addresses announced to Internet: 11824640
Equivalent to 0 /8s, 180 /16s and 110 /24s
Percentage of available LACNIC address space announced: 70.5
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 1132 1184 832 Telstra Pty Ltd
703 399 364 315 UUNET
2907 396 1993 370 SINET Japan
2764 337 341 306 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 315 281 205 Optus Communications Pty Ltd
4134 296 2457 95 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
4755 243 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 227 3554 26 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 187 57 76 Primus Telecommunications
9800 166 204 43 CHINA UNICOM
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 86 The Internet Group Limited
9238 124 7 16 TATA ISP
4739 123 57 113 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1616 9030 1190 UUNET Technologies, Inc.
7018 1462 7269 984 AT&T
3908 1202 1635 504 Supernet, Inc.
1239 973 3144 678 Sprint
1 659 8076 433 GENUITY
7843 612 409 248 Adelphia Corp.
852 609 1140 446 Telus Advanced Communications
7046 550 841 259 UUNET Technologies, Inc.
4323 526 488 168 Time Warner Communications, I
209 517 2102 328 Qwest
690 507 75 315 Merit Network
7066 491 204 252 Virginia Polytechnic Institut
6197 462 561 104 BellSouth Network Solutions,
705 427 133 186 UUNET Technologies, Inc.
18566 425 112 5 Covad Communications
6198 424 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
2386 406 464 226 AT&T Data Communications Serv
3549 400 709 294 Global Crossing
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 806 2306 669 UUNET - Commercial IP service
3301 341 1141 297 TeliaNet Sweden
3215 313 803 173 France Telecom Transpac
3320 255 1995 228 Deutsche Telekom AG
680 237 2166 235 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 176 1873 176 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 161 70 98 BT Ignite European Backbone
8708 157 42 146 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 113 COLT Internet - International
3246 118 378 115 Song Networks
3269 112 754 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 317 98 104 ImpSat
7303 228 36 52 Telecom Argentina Stet-France
8151 207 332 113 UniNet S.A. de C.V.
11172 164 83 33 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
6147 78 58 20 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 72 27 37 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
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
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 1202 698 Supernet, Inc.
7018 1462 478 AT&T
18566 425 420 Covad Communications
7843 612 364 Adelphia Corp.
4323 526 358 Time Warner Communications, I
6197 462 358 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1132 300 Telstra Pty Ltd
1239 973 295 Sprint
11492 295 294 Cable One
4355 408 292 EarthLink, Inc.
7046 550 291 UUNET Technologies, Inc.
6347 367 288 SAVVIS Communications Corpora
4151 328 270 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 427 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 659 226 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
65535 PRIVATE 202.57.188.0/24 7654 Siam Global Access C
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65000 PRIVATE 210.90.54.0/25 9768 Korea Telecom
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
188.1.0.0/16 680 DFN-IP service G-WiN
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
192.119.135.0/24 270 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 /11:12 /12:44
/13:91 /14:240 /15:441 /16:7338 /17:1553 /18:2821
/19:8031 /20:7805 /21:5616 /22:8544 /23:10269 /24:66154
/25:135 /26:173 /27:92 /28:78 /29:67 /30:108
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 769 1202 Supernet, Inc.
7018 500 1462 AT&T
702 493 806 UUNET - Commercial IP service
690 456 507 Merit Network
701 434 1616 UUNET Technologies, Inc.
18566 419 425 Covad Communications
7066 390 491 Virginia Polytechnic Institut
7843 386 612 Adelphia Corp.
1239 361 973 Sprint
6197 339 462 BellSouth Network Solutions,
6198 338 424 BellSouth Network Solutions,
6140 305 317 ImpSat
1580 301 315 ANOSCEUR
11492 294 295 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 244 550 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 231 350 Charter Communications
4355 227 408 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:631 13:1 15:6 17:3 20:7 24:779
25:1 32:43 38:36 40:18 44:1 55:1
57:16 61:426 62:467 63:1858 64:1365 65:1797
66:1364 67:205 68:224 69:45 80:328 81:83
128:123 129:184 130:23 131:70 132:9 133:4
134:153 135:6 136:489 137:111 138:209 139:84
140:186 141:104 142:95 143:44 144:148 145:16
146:256 147:250 148:269 149:79 150:42 151:90
152:245 153:37 154:7 155:103 156:49 157:62
158:120 159:138 160:24 161:64 162:140 163:85
164:262 165:136 166:78 167:303 168:389 169:56
170:289 171:8 178:1 192:5381 193:2398 194:1982
195:929 196:456 198:3580 199:3057 200:2787 202:3629
203:4948 204:3004 205:2113 206:2349 207:2412 208:2635
209:2681 210:671 211:319 212:892 213:710 214:12
215:23 216:3165 217:552 218:69 219:16 220:39
End of report
