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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 135371
Prefixes after maximum aggregation: 82451
Unique aggregates announced to Internet: 65419
Total ASes present in the Internet Routing Table: 16866
Origin-only ASes present in the Internet Routing Table: 14633
Origin ASes announcing only one prefix: 6767
Transit ASes present in the Internet Routing Table: 2233
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 31
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1286453668
Equivalent to 76 /8s, 173 /16s and 185 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 60481
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25368
Total APNIC prefixes after maximum aggregation: 13431
Prefixes being announced from the APNIC address blocks: 23716
Unique aggregates announced from the APNIC address blocks: 13562
APNIC Region origin ASes present in the Internet Routing Table: 2026
APNIC Region origin ASes announcing only one prefix: 602
APNIC Region transit ASes present in the Internet Routing Table: 320
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 138484096
Equivalent to 8 /8s, 65 /16s and 25 /24s
Percentage of available APNIC address space announced: 74.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 78316
Total ARIN prefixes after maximum aggregation: 48411
Prefixes being announced from the ARIN address blocks: 60649
Unique aggregates announced from the ARIN address blocks: 21135
ARIN Region origin ASes present in the Internet Routing Table: 9036
ARIN Region origin ASes announcing only one prefix: 3209
ARIN Region transit ASes present in the Internet Routing Table: 885
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 220454496
Equivalent to 13 /8s, 35 /16s and 222 /24s
Percentage of available ARIN address space announced: 73.0
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, 29695 - 30719
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24724
Total RIPE prefixes after maximum aggregation: 17727
Prefixes being announced from the RIPE address blocks: 21527
Unique aggregates announced from the RIPE address blocks: 14112
RIPE Region origin ASes present in the Internet Routing Table: 5268
RIPE Region origin ASes announcing only one prefix: 2828
RIPE Region transit ASes present in the Internet Routing Table: 913
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 155711488
Equivalent to 9 /8s, 71 /16s and 248 /24s
Percentage of available RIPE address space announced: 71.4
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
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5719
Total LACNIC prefixes after maximum aggregation: 2197
Prefixes being announced from the LACNIC address blocks: 5356
Unique aggregates announced from the LACNIC address blocks: 3330
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14362368
Equivalent to 0 /8s, 219 /16s and 39 /24s
Percentage of available LACNIC address space announced: 42.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1242
Total AfriNIC prefixes after maximum aggregation: 685
Prefixes being announced from the AfriNIC address blocks: 747
Unique aggregates announced from the AfriNIC address blocks: 560
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 1836032
Equivalent to 0 /8s, 28 /16s and 4 /24s
Percentage of available AfriNIC address space announced: 10.9
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 885 1102 630 Telstra Pty Ltd
4134 662 2750 117 Data Communications Bureau
4766 445 2914 243 Korea Internet Exchange for "
9583 392 37 107 Satyam Infoway Ltd.,
4755 371 130 59 Videsh Sanchar Nigam Ltd. Aut
2907 360 1847 336 SINET Japan
9443 353 70 81 Primus Telecommunications
703 340 374 262 UUNET
17557 333 23 171 Pakistan Telecom
17676 299 4412 39 XTAGE CORPORATION
2764 297 274 241 connect.com.au pty ltd
7474 270 304 210 Optus Communications Pty Ltd
9942 244 72 141 COMindico Australia
9929 226 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 196 31 38 BHARTI BT INTERNET LTD.
4837 170 1569 101 chinanet IDC center beijing n
9304 164 157 20 Hutchison Telecom (HK)
7633 155 23 42 Software Technology Parks of
4739 150 60 138 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1412 7195 988 AT&T
701 1331 8575 954 UUNET Technologies, Inc.
1239 955 3084 656 Sprint
3356 847 10940 673 Level 3 Communications, LLC
209 718 3502 505 Qwest
4323 691 559 198 Time Warner Communications, I
18566 691 192 8 Covad Communications
6197 682 458 270 BellSouth Network Solutions,
20115 624 350 328 Charter Communications
6198 548 354 196 BellSouth Network Solutions,
7843 536 597 120 Adelphia Corp.
852 514 1127 404 Telus Advanced Communications
7066 500 207 272 Virginia Polytechnic Institut
7132 473 7834 326 Southwestern Bell Internet Se
2386 418 577 227 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 395 323 101 EarthLink, Inc.
27364 388 28 23 Armstrong Cable Services
376 380 343 112 Reseau Interordinateurs Scien
22909 373 831 26 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 673 2039 562 UUNET - Commercial IP service
3301 339 1178 318 TeliaNet Sweden
3320 288 2477 236 Deutsche Telekom AG
8220 264 410 251 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
1257 236 510 196 SWIPnet Swedish IP Network
719 233 288 105 LANLINK autonomous system
13083 216 51 8 Mannesmann Datenverarbeitung
3246 193 451 191 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 161 Romania Data Systems S.A.
1273 167 172 99 Cable & Wireless Deutschland
5515 167 762 134 Sonera Solution Autonomous Sy
25186 165 186 107 France Telecom Transpac's Tra
3215 163 800 78 France Telecom Transpac
5400 151 223 134 BT Ignite European Backbone
3303 136 620 136 Swisscom Ltd
6746 135 27 113 Dynamic Network Technologies,
3269 127 1069 64 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 378 123 65 ImpSat
8151 261 384 127 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 142 220 98 AVANTEL, S.A.
7303 138 52 31 Telecom Argentina Stet-France
6147 132 78 20 Telefonica Del Peru
6505 132 90 92 Global One Communicaoes Ltda
11992 100 9 28 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
15311 77 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 70 7 17 Sinectis S.A.
14535 69 6 5 Techtel S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
14420 64 4 23 ANDINATEL S.A.
7738 63 234 14 Telecomunicacoes da Bahia S.A
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 218 The Internet Solution
5536 105 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
20928 44 16 2 Noor Advanced Technologies AS
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 33 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
8524 22 2 4 AUCEGYPT Autonomous System
24835 21 18 5 RAYA Telecom - Egypt
10798 18 1 12 Standard Bank of South Africa
14988 17 16 1 Botswana Telecommunications C
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
15825 16 1 9 Network Computer Systems Auto
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 683 Covad Communications
4134 662 545 Data Communications Bureau
4323 691 493 Time Warner Communications, I
7843 536 416 Adelphia Corp.
6197 682 412 BellSouth Network Solutions,
701 1331 377 UUNET Technologies, Inc.
27364 388 365 Armstrong Cable Services
6198 548 352 BellSouth Network Solutions,
22909 373 347 Comcast Cable Corporation
5668 352 337 Century Telephone
6140 378 313 ImpSat
22773 351 313 Cox Communications, Inc. Atla
4755 371 312 Videsh Sanchar Nigam Ltd. Aut
1239 955 299 Sprint
20115 624 296 Charter Communications
4355 395 294 EarthLink, Inc.
6347 371 289 SAVVIS Communications Corpora
9583 392 285 Satyam Infoway Ltd.,
9443 353 272 Primus Telecommunications
376 380 268 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
29975 UNALLOCATED 196.46.160.0/20 3741 The Internet Solutio
64541 PRIVATE 209.120.215.0/24 22551 Anobi Technology Cor
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:57
/13:107 /14:292 /15:508 /16:7635 /17:1942 /18:3520
/19:9072 /20:9521 /21:6946 /22:9755 /23:11251 /24:73961
/25:199 /26:306 /27:161 /28:31 /29:8 /30:41
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 522 682 BellSouth Network Solutions,
7018 506 1412 AT&T
3356 458 847 Level 3 Communications, LLC
702 409 673 UUNET - Commercial IP service
6198 396 548 BellSouth Network Solutions,
7066 395 500 Virginia Polytechnic Institut
27364 381 388 Armstrong Cable Services
20115 376 624 Charter Communications
701 365 1331 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 351 955 Sprint
5668 311 352 Century Telephone
4766 267 445 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
19029 242 372 New Edge Networks
9583 239 392 Satyam Infoway Ltd.,
3320 235 288 Deutsche Telekom AG
14824 232 257 NewSouth Communications Corp.
6517 231 253 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:809 13:1 15:4 16:1 17:3
20:6 24:830 32:84 38:53 40:56 44:3
55:1 56:1 57:13 61:382 62:494 63:1841
64:1885 65:1938 66:2384 67:284 68:575 69:445
80:481 81:276 82:127 83:10 128:141 129:234
130:72 131:78 132:16 134:177 135:16 136:186
137:107 138:152 139:43 140:149 141:135 142:109
143:49 144:71 145:37 146:290 147:76 148:371
149:85 150:97 151:62 152:215 153:60 154:1
155:123 156:62 157:56 158:147 159:143 160:51
161:55 162:376 163:80 164:320 165:163 166:111
167:210 168:201 169:99 170:302 171:8 192:5494
193:2636 194:2028 195:1354 196:525 198:3651 199:2960
200:3182 201:7 202:4509 203:5493 204:2972 205:1996
206:2242 207:2626 208:2376 209:2899 210:1185 211:510
212:920 213:1112 214:26 215:26 216:3336 217:890
218:154 219:104 220:196 221:20 222:6
End of report
