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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 02 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131547
Prefixes after maximum aggregation: 80752
Unique aggregates announced to Internet: 62438
Total ASes present in the Internet Routing Table: 16391
Origin-only ASes present in the Internet Routing Table: 14239
Origin ASes announcing only one prefix: 6525
Transit ASes present in the Internet Routing Table: 2152
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 30
Illegal AS announcements present in the Routing Table: 21
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1276529508
Equivalent to 76 /8s, 22 /16s and 75 /24s
Percentage of available address space announced: 34.4
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57926
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24352
Total APNIC prefixes after maximum aggregation: 12999
Prefixes being announced from the APNIC address blocks: 22832
Unique aggregates announced from the APNIC address blocks: 12210
APNIC Region origin ASes present in the Internet Routing Table: 1978
APNIC Region origin ASes announcing only one prefix: 584
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 134647680
Equivalent to 8 /8s, 6 /16s and 143 /24s
Percentage of available APNIC address space announced: 72.5
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: 77235
Total ARIN prefixes after maximum aggregation: 47809
Prefixes being announced from the ARIN address blocks: 59784
Unique aggregates announced from the ARIN address blocks: 20726
ARIN Region origin ASes present in the Internet Routing Table: 8817
ARIN Region origin ASes announcing only one prefix: 3088
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 213160608
Equivalent to 12 /8s, 180 /16s and 146 /24s
Percentage of available ARIN address space announced: 74.7
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23336
Total RIPE prefixes after maximum aggregation: 17059
Prefixes being announced from the RIPE address blocks: 20210
Unique aggregates announced from the RIPE address blocks: 13415
RIPE Region origin ASes present in the Internet Routing Table: 5076
RIPE Region origin ASes announcing only one prefix: 2720
RIPE Region transit ASes present in the Internet Routing Table: 888
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 147945344
Equivalent to 8 /8s, 209 /16s and 119 /24s
Percentage of available RIPE address space announced: 67.8
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
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: 5459
Total LACNIC prefixes after maximum aggregation: 2197
Prefixes being announced from the LACNIC address blocks: 5067
Unique aggregates announced from the LACNIC address blocks: 3024
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13868032
Equivalent to 0 /8s, 211 /16s and 156 /24s
Percentage of available LACNIC address space announced: 41.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1144
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1761792
Equivalent to 0 /8s, 26 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 10.5
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 909 1098 654 Telstra Pty Ltd
4134 710 2413 110 Data Communications Bureau
4766 375 2903 228 Korea Internet Exchange for "
2907 363 1847 340 SINET Japan
9443 343 69 79 Primus Telecommunications
703 336 372 261 UUNET
4755 322 130 58 Videsh Sanchar Nigam Ltd. Aut
17557 309 22 149 Pakistan Telecom
17676 292 4300 38 XTAGE CORPORATION
2764 287 289 236 connect.com.au pty ltd
9583 273 44 11 Satyam Infoway Ltd.,
7474 264 305 212 Optus Communications Pty Ltd
4538 246 1811 21 China Education and Research
9929 223 154 27 China Netcom Corp.
9942 217 69 128 COMindico Australia
9800 212 346 57 CHINA UNICOM
9498 175 22 29 BHARTI BT INTERNET LTD.
3786 158 753 140 DACOM Corporation
17642 152 40 111 RequestDSL BGP AS# for Sydney
4837 149 1272 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1409 7043 972 AT&T
701 1405 8663 964 UUNET Technologies, Inc.
1239 948 3089 660 Sprint
6197 826 477 249 BellSouth Network Solutions,
18566 735 176 8 Covad Communications
3356 733 10926 582 Level 3 Communications, LLC
209 727 3530 511 Qwest
4323 675 589 203 Time Warner Communications, I
20115 583 321 331 Charter Communications
6198 569 338 194 BellSouth Network Solutions,
7843 508 523 117 Adelphia Corp.
852 505 1124 402 Telus Advanced Communications
7066 503 207 270 Virginia Polytechnic Institut
7132 452 7396 310 Southwestern Bell Internet Se
2386 409 532 231 AT&T Data Communications Serv
19029 406 172 262 New Edge Networks
690 400 58 270 Merit Network
4355 390 323 101 EarthLink, Inc.
27364 381 28 24 Armstrong Cable Services
705 380 196 235 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 698 2075 581 UUNET - Commercial IP service
3301 297 1154 282 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 267 424 252 COLT Internet - International
1257 258 505 192 SWIPnet Swedish IP Network
680 229 2022 226 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 185 424 183 Song Networks
786 174 1810 174 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 164 111 157 Romania Data Systems S.A.
3215 144 754 67 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
5400 140 176 125 BT Ignite European Backbone
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
3352 101 876 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 120 69 ImpSat
8151 240 336 124 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
7303 178 52 18 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
6503 128 220 93 AVANTEL, S.A.
6147 123 78 20 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
8065 77 10 21 Empresas Publicas de Medellin
6535 76 5 19 Chilesat Servicios Empresari
15311 76 17 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11992 68 25 32 Integrated Systems
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
5639 58 7 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
5536 102 6 12 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 735 727 Covad Communications
4134 710 600 Data Communications Bureau
6197 826 577 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
701 1405 441 UUNET Technologies, Inc.
7843 508 391 Adelphia Corp.
6198 569 375 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 320 307 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 327 297 Cox Communications, Inc. Atla
4355 390 289 EarthLink, Inc.
1239 948 288 Sprint
6140 351 282 ImpSat
9443 343 264 Primus Telecommunications
4755 322 264 Videsh Sanchar Nigam Ltd. Aut
9583 273 262 Satyam Infoway Ltd.,
1221 909 255 Telstra Pty Ltd
17676 292 254 XTAGE CORPORATION
20115 583 252 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31769 UNALLOCATED 12.164.144.0/24 7018 AT&T
31784 UNALLOCATED 12.167.154.0/23 7018 AT&T
31753 UNALLOCATED 63.251.94.0/24 10913 InterNAP Network Ser
31769 UNALLOCATED 65.218.210.0/24 701 UUNET Technologies,
31769 UNALLOCATED 65.218.210.0/23 7018 AT&T
31769 UNALLOCATED 65.218.211.0/24 701 UUNET Technologies,
31766 UNALLOCATED 67.99.177.0/24 4513 PFM Communications,
31795 UNALLOCATED 68.88.220.0/24 7132 Southwestern Bell In
31780 UNALLOCATED 69.38.148.0/24 701 UUNET Technologies,
31752 UNALLOCATED 69.60.224.0/20 23184 Persona Communicatio
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
31763 UNALLOCATED 205.235.32.0/19 3593 EPIX
31763 UNALLOCATED 205.235.48.0/24 3593 EPIX
31763 UNALLOCATED 205.235.49.0/24 3593 EPIX
31757 UNALLOCATED 207.105.158.0/24 7132 Southwestern Bell In
31776 UNALLOCATED 208.28.117.0/24 6395 Broadwing Communicat
31766 UNALLOCATED 209.10.138.0/24 4513 PFM Communications,
31749 UNALLOCATED 216.248.43.0/24 2551 ICG NetAhead, Inc
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
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 /8:20 /9:4 /10:6 /11:15 /12:57
/13:103 /14:279 /15:494 /16:7528 /17:1849 /18:3434
/19:8859 /20:9313 /21:6724 /22:9409 /23:11027 /24:71767
/25:186 /26:236 /27:141 /28:32 /29:7 /30:45
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 729 735 Covad Communications
6197 674 826 BellSouth Network Solutions,
7018 528 1409 AT&T
701 430 1405 UUNET Technologies, Inc.
6198 427 569 BellSouth Network Solutions,
702 426 698 UUNET - Commercial IP service
7066 396 503 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
3356 372 733 Level 3 Communications, LLC
20115 364 583 Charter Communications
690 361 400 Merit Network
1239 339 948 Sprint
5668 283 320 Century Telephone
19029 264 406 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 227 280 Deutsche Telekom AG
6386 223 249 bellsouth.net, inc.
4355 215 390 EarthLink, Inc.
6517 213 238 Yipes Communications, Inc.
4766 211 375 Korea Internet Exchange for "
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 9:1 12:760 13:1 15:6
16:1 17:3 20:7 22:2 24:876 25:4
32:83 36:1 38:44 40:27 44:1 51:1
55:1 56:1 57:14 61:340 62:451 63:1817
64:1801 65:1816 66:2208 67:246 68:691 69:377
80:431 81:182 82:58 128:143 129:260 130:69
131:80 132:17 134:176 135:16 136:129 137:115
138:126 139:38 140:157 141:133 142:111 143:48
144:84 145:39 146:287 147:73 148:319 149:87
150:119 151:60 152:209 153:59 154:1 155:131
156:60 157:55 158:133 159:137 160:46 161:50
162:368 163:69 164:330 165:175 166:104 167:210
168:176 169:96 170:299 171:8 192:5515 193:2483
194:2006 195:1297 196:513 198:3623 199:2825 200:2995
201:5 202:4334 203:5414 204:3022 205:2039 206:2251
207:2584 208:2458 209:2887 210:1007 211:408 212:908
213:978 214:23 215:25 216:3358 217:802 218:121
219:80 220:142 221:18
End of report
