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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 06 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131664
Prefixes after maximum aggregation: 80851
Unique aggregates announced to Internet: 63113
Total ASes present in the Internet Routing Table: 16397
Origin-only ASes present in the Internet Routing Table: 14245
Origin ASes announcing only one prefix: 6515
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1275210084
Equivalent to 76 /8s, 2 /16s and 41 /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: 57980
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24311
Total APNIC prefixes after maximum aggregation: 13048
Prefixes being announced from the APNIC address blocks: 22788
Unique aggregates announced from the APNIC address blocks: 12856
APNIC Region origin ASes present in the Internet Routing Table: 1968
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 133244288
Equivalent to 7 /8s, 241 /16s and 37 /24s
Percentage of available APNIC address space announced: 71.8
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: 77376
Total ARIN prefixes after maximum aggregation: 47838
Prefixes being announced from the ARIN address blocks: 59857
Unique aggregates announced from the ARIN address blocks: 20745
ARIN Region origin ASes present in the Internet Routing Table: 8824
ARIN Region origin ASes announcing only one prefix: 3092
ARIN Region transit ASes present in the Internet Routing Table: 835
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 213223072
Equivalent to 12 /8s, 181 /16s and 134 /24s
Percentage of available ARIN address space announced: 74.8
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, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23365
Total RIPE prefixes after maximum aggregation: 17090
Prefixes being announced from the RIPE address blocks: 20243
Unique aggregates announced from the RIPE address blocks: 13388
RIPE Region origin ASes present in the Internet Routing Table: 5075
RIPE Region origin ASes announcing only one prefix: 2714
RIPE Region transit ASes present in the Internet Routing Table: 889
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 147928192
Equivalent to 8 /8s, 209 /16s and 52 /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: 5463
Total LACNIC prefixes after maximum aggregation: 2196
Prefixes being announced from the LACNIC address blocks: 5090
Unique aggregates announced from the LACNIC address blocks: 3032
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 104
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: 13876224
Equivalent to 0 /8s, 211 /16s and 188 /24s
Percentage of available LACNIC address space announced: 41.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1145
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 732
Unique aggregates announced from the AfriNIC address blocks: 564
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: 1753856
Equivalent to 0 /8s, 26 /16s and 195 /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 907 1098 653 Telstra Pty Ltd
4134 717 2413 110 Data Communications Bureau
4766 404 2904 238 Korea Internet Exchange for "
2907 363 1847 340 SINET Japan
9443 343 69 79 Primus Telecommunications
703 339 372 263 UUNET
4755 320 130 57 Videsh Sanchar Nigam Ltd. Aut
17557 308 22 149 Pakistan Telecom
17676 292 4300 38 XTAGE CORPORATION
2764 286 289 235 connect.com.au pty ltd
7474 264 305 212 Optus Communications Pty Ltd
4538 250 1811 21 China Education and Research
9929 225 154 27 China Netcom Corp.
9942 217 69 128 COMindico Australia
9800 212 346 57 CHINA UNICOM
9583 192 41 34 Satyam Infoway Ltd.,
9498 177 22 31 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
4837 149 1272 99 chinanet IDC center beijing n
17964 149 115 58 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1411 7058 974 AT&T
701 1408 8664 967 UUNET Technologies, Inc.
1239 947 3089 660 Sprint
6197 826 477 249 BellSouth Network Solutions,
18566 757 176 8 Covad Communications
3356 733 10926 582 Level 3 Communications, LLC
209 721 3529 506 Qwest
4323 674 589 202 Time Warner Communications, I
20115 583 321 331 Charter Communications
6198 571 339 192 BellSouth Network Solutions,
7843 508 523 117 Adelphia Corp.
852 504 1124 401 Telus Advanced Communications
7066 501 207 270 Virginia Polytechnic Institut
7132 451 7382 309 Southwestern Bell Internet Se
2386 411 532 230 AT&T Data Communications Serv
19029 405 172 261 New Edge Networks
690 399 58 269 Merit Network
4355 390 323 101 EarthLink, Inc.
705 381 196 236 UUNET Technologies, Inc.
27364 381 28 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2075 580 UUNET - Commercial IP service
3301 336 1159 315 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 265 412 250 COLT Internet - International
1257 259 505 193 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 1826 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.
5400 145 225 126 BT Ignite European Backbone
3215 144 754 67 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
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 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 132 90 92 Global One Communicaoes Ltda
6503 126 220 93 AVANTEL, S.A.
6147 124 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
7080 64 4 1 Electronica y Comunicaciones
11311 63 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
1916 59 247 39 Fundacao de Amparo a Pesquisa
14420 59 4 22 ANDINATEL S.A.
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 103 8 3 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 757 749 Covad Communications
4134 717 607 Data Communications Bureau
6197 826 577 BellSouth Network Solutions,
4323 674 472 Time Warner Communications, I
701 1408 441 UUNET Technologies, Inc.
7843 508 391 Adelphia Corp.
6198 571 379 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 322 308 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 327 297 Cox Communications, Inc. Atla
4355 390 289 EarthLink, Inc.
1239 947 287 Sprint
6140 350 281 ImpSat
9443 343 264 Primus Telecommunications
4755 320 263 Videsh Sanchar Nigam Ltd. Aut
1221 907 254 Telstra Pty Ltd
17676 292 254 XTAGE CORPORATION
20115 583 252 Charter Communications
6347 329 252 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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
/13:103 /14:279 /15:492 /16:7532 /17:1853 /18:3434
/19:8874 /20:9325 /21:6738 /22:9430 /23:11037 /24:71807
/25:186 /26:235 /27:141 /28:32 /29:6 /30:47
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 745 757 Covad Communications
6197 674 826 BellSouth Network Solutions,
7018 526 1411 AT&T
701 431 1408 UUNET Technologies, Inc.
6198 428 571 BellSouth Network Solutions,
702 427 697 UUNET - Commercial IP service
7066 394 501 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
3356 372 733 Level 3 Communications, LLC
20115 364 583 Charter Communications
690 361 399 Merit Network
1239 338 947 Sprint
5668 283 320 Century Telephone
19029 264 405 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 233 404 Korea Internet Exchange for "
3320 227 280 Deutsche Telekom AG
6386 223 249 bellsouth.net, inc.
4355 215 390 EarthLink, Inc.
6517 215 240 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:762 13:1 15:6 16:1 17:3
20:7 24:876 32:81 38:44 40:26 44:1
55:1 56:1 57:14 61:342 62:451 63:1822
64:1800 65:1812 66:2209 67:247 68:708 69:371
80:432 81:182 82:59 128:144 129:260 130:69
131:80 132:17 134:176 135:16 136:129 137:115
138:127 139:38 140:158 141:133 142:111 143:48
144:82 145:39 146:289 147:73 148:317 149:87
150:119 151:60 152:209 153:59 154:1 155:131
156:61 157:55 158:133 159:140 160:46 161:50
162:367 163:70 164:328 165:175 166:104 167:208
168:176 169:96 170:296 171:8 192:5530 193:2500
194:2008 195:1320 196:515 198:3627 199:2832 200:3011
201:5 202:4295 203:5424 204:3024 205:2037 206:2253
207:2584 208:2451 209:2885 210:961 211:409 212:907
213:972 214:23 215:25 216:3383 217:796 218:117
219:80 220:152 221:18 222:1
End of report
