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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 30 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131483
Prefixes after maximum aggregation: 80808
Unique aggregates announced to Internet: 63122
Total ASes present in the Internet Routing Table: 16381
Origin-only ASes present in the Internet Routing Table: 14231
Origin ASes announcing only one prefix: 6512
Transit ASes present in the Internet Routing Table: 2150
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 22
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1274244196
Equivalent to 75 /8s, 243 /16s and 108 /24s
Percentage of available address space announced: 34.4
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57848
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24300
Total APNIC prefixes after maximum aggregation: 13016
Prefixes being announced from the APNIC address blocks: 22753
Unique aggregates announced from the APNIC address blocks: 12869
APNIC Region origin ASes present in the Internet Routing Table: 1977
APNIC Region origin ASes announcing only one prefix: 582
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 133027200
Equivalent to 7 /8s, 237 /16s and 213 /24s
Percentage of available APNIC address space announced: 71.7
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: 77120
Total ARIN prefixes after maximum aggregation: 47823
Prefixes being announced from the ARIN address blocks: 59687
Unique aggregates announced from the ARIN address blocks: 20674
ARIN Region origin ASes present in the Internet Routing Table: 8820
ARIN Region origin ASes announcing only one prefix: 3085
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: 212534432
Equivalent to 12 /8s, 171 /16s and 4 /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
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: 23334
Total RIPE prefixes after maximum aggregation: 17042
Prefixes being announced from the RIPE address blocks: 20211
Unique aggregates announced from the RIPE address blocks: 13412
RIPE Region origin ASes present in the Internet Routing Table: 5066
RIPE Region origin ASes announcing only one prefix: 2711
RIPE Region transit ASes present in the Internet Routing Table: 889
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 147925632
Equivalent to 8 /8s, 209 /16s and 42 /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: 5563
Total LACNIC prefixes after maximum aggregation: 2236
Prefixes being announced from the LACNIC address blocks: 5162
Unique aggregates announced from the LACNIC address blocks: 3109
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13849088
Equivalent to 0 /8s, 211 /16s and 82 /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: 691
Prefixes being announced from the AfriNIC address blocks: 728
Unique aggregates announced from the AfriNIC address blocks: 559
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: 1762048
Equivalent to 0 /8s, 26 /16s and 227 /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 709 2397 109 Data Communications Bureau
2907 363 1847 340 SINET Japan
9443 343 69 79 Primus Telecommunications
703 338 372 262 UUNET
4755 322 130 59 Videsh Sanchar Nigam Ltd. Aut
4766 313 2897 204 Korea Internet Exchange for "
17557 310 22 151 Pakistan Telecom
17676 292 4300 38 XTAGE CORPORATION
2764 289 289 239 connect.com.au pty ltd
9583 272 44 11 Satyam Infoway Ltd.,
7474 262 305 212 Optus Communications Pty Ltd
4538 249 1810 20 China Education and Research
9929 223 154 27 China Netcom Corp.
9942 217 69 128 COMindico Australia
9800 212 346 57 CHINA UNICOM
3786 204 763 181 DACOM Corporation
9498 174 22 29 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
17964 148 115 57 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1418 7073 982 AT&T
701 1408 8664 966 UUNET Technologies, Inc.
1239 946 3089 658 Sprint
6197 825 477 249 BellSouth Network Solutions,
18566 734 176 8 Covad Communications
209 729 3513 512 Qwest
3356 729 10926 579 Level 3 Communications, LLC
4323 676 589 204 Time Warner Communications, I
20115 582 320 332 Charter Communications
6198 568 338 194 BellSouth Network Solutions,
7843 505 521 116 Adelphia Corp.
852 504 1124 401 Telus Advanced Communications
7066 504 207 270 Virginia Polytechnic Institut
7132 449 7388 309 Southwestern Bell Internet Se
2386 407 516 230 AT&T Data Communications Serv
19029 407 172 263 New Edge Networks
690 400 58 270 Merit Network
4355 390 323 101 EarthLink, Inc.
705 379 196 234 UUNET Technologies, Inc.
376 356 359 113 Reseau Interordinateurs Scien
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 281 1972 231 Deutsche Telekom AG
8220 266 424 251 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
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 165 111 158 Romania Data Systems S.A.
3215 144 754 67 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
5400 141 176 126 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 102 876 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 120 68 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
10620 131 11 36 TVCABLE BOGOTA
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 16 39 Telefonica Empresas
4270 70 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
1916 59 247 39 Fundacao de Amparo a Pesquisa
14420 59 4 22 ANDINATEL S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
5536 101 6 16 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
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 734 726 Covad Communications
4134 709 600 Data Communications Bureau
6197 825 576 BellSouth Network Solutions,
4323 676 472 Time Warner Communications, I
701 1408 442 UUNET Technologies, Inc.
7843 505 389 Adelphia Corp.
6198 568 374 BellSouth Network Solutions,
27364 355 331 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 946 288 Sprint
6140 350 282 ImpSat
9443 343 264 Primus Telecommunications
4755 322 263 Videsh Sanchar Nigam Ltd. Aut
9583 272 261 Satyam Infoway Ltd.,
1221 909 255 Telstra Pty Ltd
17676 292 254 XTAGE CORPORATION
6347 330 251 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31769 UNALLOCATED 12.164.144.0/24 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,
31758 UNALLOCATED 69.22.180.0/24 4474 Global Village Commu
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,
65000 PRIVATE 210.90.54.64/26 9768 Korea Telecom
31779 UNALLOCATED 216.66.230.0/24 701 UUNET Technologies,
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 /8:19 /9:4 /10:6 /11:15 /12:57
/13:102 /14:277 /15:494 /16:7527 /17:1848 /18:3425
/19:8851 /20:9301 /21:6711 /22:9393 /23:11038 /24:71759
/25:185 /26:239 /27:138 /28:32 /29:6 /30:44
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 734 Covad Communications
6197 673 825 BellSouth Network Solutions,
7018 524 1418 AT&T
701 430 1408 UUNET Technologies, Inc.
702 426 698 UUNET - Commercial IP service
6198 426 568 BellSouth Network Solutions,
7066 397 504 Virginia Polytechnic Institut
3356 372 729 Level 3 Communications, LLC
20115 364 582 Charter Communications
690 361 400 Merit Network
27364 349 355 Armstrong Cable Services
1239 339 946 Sprint
5668 283 320 Century Telephone
19029 264 407 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 228 281 Deutsche Telekom AG
6386 222 248 bellsouth.net, inc.
4355 215 390 EarthLink, Inc.
6517 212 237 Yipes Communications, Inc.
209 205 729 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 9:1 12:760 13:1 14:1
15:6 16:1 17:3 20:7 22:2 24:876
25:4 32:83 35:1 36:1 38:44 40:26
44:1 55:1 56:1 57:14 61:331 62:452
63:1820 64:1800 65:1810 66:2202 67:245 68:689
69:376 80:437 81:181 82:59 128:147 129:260
130:69 131:80 132:17 134:176 135:16 136:129
137:115 138:125 139:38 140:163 141:132 142:111
143:48 144:84 145:39 146:285 147:73 148:318
149:87 150:119 151:60 152:209 153:59 154:1
155:131 156:60 157:63 158:133 159:137 160:46
161:49 162:368 163:69 164:332 165:175 166:104
167:210 168:181 169:94 170:298 171:8 192:5511
193:2486 194:2006 195:1302 196:516 198:3626 199:2820
200:3062 201:5 202:4318 203:5394 204:3013 205:2036
206:2257 207:2576 208:2455 209:2888 210:1004 211:410
212:909 213:974 214:23 215:25 216:3350 217:806
218:119 219:80 220:124 221:18
End of report
