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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 06 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 139825
Prefixes after maximum aggregation: 84639
Unique aggregates announced to Internet: 67505
Total ASes present in the Internet Routing Table: 17349
Origin-only ASes present in the Internet Routing Table: 15046
Origin ASes announcing only one prefix: 6988
Transit ASes present in the Internet Routing Table: 2303
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 42
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1310253308
Equivalent to 78 /8s, 24 /16s and 224 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 63676
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26685
Total APNIC prefixes after maximum aggregation: 13808
Prefixes being announced from the APNIC address blocks: 24976
Unique aggregates announced from the APNIC address blocks: 13788
APNIC Region origin ASes present in the Internet Routing Table: 2061
APNIC Region origin ASes announcing only one prefix: 611
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 149564928
Equivalent to 8 /8s, 234 /16s and 46 /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 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 80201
Total ARIN prefixes after maximum aggregation: 49611
Prefixes being announced from the ARIN address blocks: 62025
Unique aggregates announced from the ARIN address blocks: 21739
ARIN Region origin ASes present in the Internet Routing Table: 9228
ARIN Region origin ASes announcing only one prefix: 3277
ARIN Region transit ASes present in the Internet Routing Table: 902
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224981280
Equivalent to 13 /8s, 104 /16s and 241 /24s
Percentage of available ARIN address space announced: 74.5
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 - 33791
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: 25671
Total RIPE prefixes after maximum aggregation: 18294
Prefixes being announced from the RIPE address blocks: 22472
Unique aggregates announced from the RIPE address blocks: 14967
RIPE Region origin ASes present in the Internet Routing Table: 5518
RIPE Region origin ASes announcing only one prefix: 2969
RIPE Region transit ASes present in the Internet Routing Table: 949
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 163467520
Equivalent to 9 /8s, 190 /16s and 81 /24s
Percentage of available RIPE address space announced: 57.3
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6093
Total LACNIC prefixes after maximum aggregation: 2252
Prefixes being announced from the LACNIC address blocks: 5706
Unique aggregates announced from the LACNIC address blocks: 3484
LACNIC Region origin ASes present in the Internet Routing Table: 381
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15001344
Equivalent to 0 /8s, 228 /16s and 231 /24s
Percentage of available LACNIC address space announced: 44.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1138
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 776
Unique aggregates announced from the AfriNIC address blocks: 582
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 22
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: 15
Number of AfriNIC addresses announced to Internet: 1865216
Equivalent to 0 /8s, 28 /16s and 118 /24s
Percentage of available AfriNIC address space announced: 11.1
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 843 1075 611 Telstra Pty Ltd
4134 798 3660 144 Data Communications Bureau
4766 491 2896 264 Korea Internet Exchange for "
9583 464 40 86 Satyam Infoway Ltd.,
4755 367 133 53 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 352 1841 329 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 330 23 165 Pakistan Telecom
703 329 375 256 UUNET
9929 323 156 33 China Netcom Corp.
2764 294 274 241 connect.com.au pty ltd
7474 264 268 207 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 216 47 46 BHARTI BT INTERNET LTD.
4780 209 193 26 Digital United Inc.
4837 182 2019 105 chinanet IDC center beijing n
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
10036 180 16 168 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1438 6891 1002 AT&T
701 1315 8513 941 UUNET Technologies, Inc.
1239 938 3000 638 Sprint
6347 938 400 99 SAVVIS Communications Corpora
3356 893 10900 677 Level 3 Communications, LLC
4323 730 547 201 Time Warner Communications, I
209 726 3456 498 Qwest
6197 712 525 274 BellSouth Network Solutions,
18566 708 192 8 Covad Communications
6198 570 440 218 BellSouth Network Solutions,
20115 555 367 288 Charter Communications
852 512 1142 403 Telus Advanced Communications
7843 506 650 120 Adelphia Corp.
7132 450 7866 336 Southwestern Bell Internet Se
2386 430 582 231 AT&T Data Communications Serv
705 393 144 268 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
5668 380 71 17 Century Telephone
376 379 359 111 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 641 2040 537 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 274 1097 264 TeliaNet Sweden
8220 273 429 261 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 244 495 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 209 468 206 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 180 288 102 LANLINK autonomous system
3215 176 831 68 France Telecom Transpac
8708 176 111 165 Romania Data Systems S.A.
25186 174 156 116 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 156 29 127 Dynamic Network Technologies,
5400 145 207 121 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 124 18 30 MobiFon S.A.
8866 118 13 7 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 350 80 55 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 272 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 129 218 89 AVANTEL, S.A.
11992 101 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14420 71 5 32 ANDINATEL S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 108 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 88 276 78 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 30 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 26 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 7 AUCEGYPT Autonomous System
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 938 839 SAVVIS Communications Corpora
18566 708 700 Covad Communications
4134 798 654 Data Communications Bureau
4323 730 529 Time Warner Communications, I
6197 712 438 BellSouth Network Solutions,
7843 506 386 Adelphia Corp.
9583 464 378 Satyam Infoway Ltd.,
701 1315 374 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 570 352 BellSouth Network Solutions,
27364 360 341 Armstrong Cable Services
22773 379 328 Cox Communications, Inc. Atla
4755 367 314 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 938 300 Sprint
11172 350 295 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 323 290 China Netcom Corp.
6140 346 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
64601 PRIVATE 61.233.0.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.1.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.2.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.3.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.4.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.5.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.6.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.7.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.8.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.10.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.11.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.12.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.14.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.15.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.16.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.17.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.18.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.19.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.20.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.21.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.22.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.23.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.24.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.25.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.26.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.27.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.28.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.29.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.30.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.31.0/24 9394 CHINA RAILWAY Intern
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
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
156.154.16.0/22 7786 Lockheed Martin IMS
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
192.70.164.0/24 25689 National Research Council of
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
192.172.11.0/24 721 DLA Systems Automation Center
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 /12:59
/13:124 /14:298 /15:513 /16:7844 /17:2050 /18:3617
/19:9418 /20:9895 /21:7231 /22:10295 /23:11637 /24:76057
/25:224 /26:253 /27:139 /28:31 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 715 938 SAVVIS Communications Corpora
18566 691 708 Covad Communications
7018 553 1438 AT&T
6197 541 712 BellSouth Network Solutions,
3356 509 893 Level 3 Communications, LLC
6198 399 570 BellSouth Network Solutions,
702 393 641 UUNET - Commercial IP service
701 372 1315 UUNET Technologies, Inc.
1239 369 938 Sprint
27364 348 360 Armstrong Cable Services
5668 332 380 Century Telephone
4766 312 491 Korea Internet Exchange for "
9583 303 464 Satyam Infoway Ltd.,
20115 295 555 Charter Communications
9929 256 323 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
690 246 282 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
6517 236 262 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:815 13:1 15:5 16:2 17:3
20:8 24:730 32:101 33:1 38:67 40:54
44:3 55:1 56:3 57:16 61:417 62:477
63:1813 64:1955 65:2003 66:2579 67:323 68:528
69:545 70:64 80:489 81:303 82:174 83:66
128:143 129:186 130:81 131:177 132:21 133:1
134:181 135:17 136:186 137:92 138:157 139:41
140:166 141:125 142:116 143:54 144:90 145:42
146:302 147:76 148:417 149:121 150:92 151:71
152:165 153:62 154:1 155:116 156:62 157:60
158:145 159:146 160:52 161:56 162:379 163:75
164:179 165:161 166:100 167:219 168:223 169:106
170:285 171:8 192:5552 193:2746 194:2024 195:1366
196:555 198:3695 199:3094 200:3460 201:7 202:4594
203:5598 204:3076 205:2049 206:2277 207:2488 208:2231
209:2904 210:1422 211:565 212:981 213:1183 214:61
215:25 216:3487 217:944 218:163 219:108 220:229
221:28 222:41
End of report
