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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131442
Prefixes after maximum aggregation: 80885
Unique aggregates announced to Internet: 63275
Total ASes present in the Internet Routing Table: 16408
Origin-only ASes present in the Internet Routing Table: 14244
Origin ASes announcing only one prefix: 6539
Transit ASes present in the Internet Routing Table: 2164
Transit-only ASes present in the Internet Routing Table: 71
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: 1275274596
Equivalent to 76 /8s, 3 /16s and 37 /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: 57930
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24214
Total APNIC prefixes after maximum aggregation: 13083
Prefixes being announced from the APNIC address blocks: 22691
Unique aggregates announced from the APNIC address blocks: 12919
APNIC Region origin ASes present in the Internet Routing Table: 1971
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 133242496
Equivalent to 7 /8s, 241 /16s and 30 /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: 77362
Total ARIN prefixes after maximum aggregation: 47836
Prefixes being announced from the ARIN address blocks: 59897
Unique aggregates announced from the ARIN address blocks: 20751
ARIN Region origin ASes present in the Internet Routing Table: 8829
ARIN Region origin ASes announcing only one prefix: 3102
ARIN Region transit ASes present in the Internet Routing Table: 843
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 213284512
Equivalent to 12 /8s, 182 /16s and 118 /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: 23290
Total RIPE prefixes after maximum aggregation: 17097
Prefixes being announced from the RIPE address blocks: 20153
Unique aggregates announced from the RIPE address blocks: 13404
RIPE Region origin ASes present in the Internet Routing Table: 5081
RIPE Region origin ASes announcing only one prefix: 2727
RIPE Region transit ASes present in the Internet Routing Table: 890
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 148145792
Equivalent to 8 /8s, 212 /16s and 134 /24s
Percentage of available RIPE address space announced: 67.9
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: 5421
Total LACNIC prefixes after maximum aggregation: 2187
Prefixes being announced from the LACNIC address blocks: 5048
Unique aggregates announced from the LACNIC address blocks: 3131
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: 13882624
Equivalent to 0 /8s, 211 /16s and 213 /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: 1151
Total AfriNIC prefixes after maximum aggregation: 682
Prefixes being announced from the AfriNIC address blocks: 731
Unique aggregates announced from the AfriNIC address blocks: 563
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 27
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: 15
Number of AfriNIC addresses announced to Internet: 1749760
Equivalent to 0 /8s, 26 /16s and 179 /24s
Percentage of available AfriNIC address space announced: 10.4
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 906 1098 654 Telstra Pty Ltd
4134 717 2413 110 Data Communications Bureau
4766 405 2904 239 Korea Internet Exchange for "
2907 363 1847 340 SINET Japan
9443 345 69 79 Primus Telecommunications
703 338 372 262 UUNET
17557 308 22 149 Pakistan Telecom
17676 292 4300 38 XTAGE CORPORATION
2764 286 289 235 connect.com.au pty ltd
7474 268 305 212 Optus Communications Pty Ltd
4538 250 1811 21 China Education and Research
4755 222 130 58 Videsh Sanchar Nigam Ltd. Aut
9942 217 69 128 COMindico Australia
9929 215 154 27 China Netcom Corp.
9800 214 347 59 CHINA UNICOM
9583 201 41 34 Satyam Infoway Ltd.,
9498 178 22 32 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
17964 151 116 59 Beijing Dian-Xin-Tong Network
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 1416 7044 978 AT&T
701 1412 8680 971 UUNET Technologies, Inc.
1239 950 3089 661 Sprint
6197 829 483 251 BellSouth Network Solutions,
18566 765 176 8 Covad Communications
3356 730 10941 582 Level 3 Communications, LLC
209 723 3529 508 Qwest
4323 674 589 202 Time Warner Communications, I
20115 583 321 331 Charter Communications
6198 573 341 193 BellSouth Network Solutions,
7843 508 530 121 Adelphia Corp.
852 505 1124 402 Telus Advanced Communications
7066 502 207 271 Virginia Polytechnic Institut
7132 461 7398 310 Southwestern Bell Internet Se
2386 412 543 213 AT&T Data Communications Serv
19029 406 172 262 New Edge Networks
690 399 58 269 Merit Network
4355 390 323 101 EarthLink, Inc.
27364 381 28 24 Armstrong Cable Services
705 379 196 234 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2076 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 251 505 192 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 1826 174 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 146 770 68 France Telecom Transpac
3303 143 557 138 Swisscom Ltd
5400 140 225 126 BT Ignite European Backbone
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
2856 119 1294 109 BTnet UK Regional network
3269 119 941 64 TELECOM ITALIA
3352 102 876 30 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
16814 156 10 5 NSS, S.A.
7303 139 52 17 Telecom Argentina Stet-France
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
15311 78 18 38 Telefonica Empresas
8065 77 10 21 Empresas Publicas de Medellin
6535 76 5 19 Chilesat Servicios Empresari
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
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 57 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 27 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
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
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
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 765 757 Covad Communications
4134 717 607 Data Communications Bureau
6197 829 578 BellSouth Network Solutions,
4323 674 472 Time Warner Communications, I
701 1412 441 UUNET Technologies, Inc.
7843 508 387 Adelphia Corp.
6198 573 380 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 325 308 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 327 297 Cox Communications, Inc. Atla
1239 950 289 Sprint
4355 390 289 EarthLink, Inc.
6140 351 282 ImpSat
9443 345 266 Primus Telecommunications
17676 292 254 XTAGE CORPORATION
1221 906 252 Telstra Pty Ltd
20115 583 252 Charter Communications
6347 328 251 SAVVIS Communications Corpora
376 357 243 Reseau Interordinateurs Scien
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 /16:7526 /17:1850 /18:3428
/19:8856 /20:9319 /21:6714 /22:9420 /23:11033 /24:71664
/25:186 /26:235 /27:139 /28:32 /29:6 /30:47
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 674 829 BellSouth Network Solutions,
7018 529 1416 AT&T
701 433 1412 UUNET Technologies, Inc.
6198 429 573 BellSouth Network Solutions,
702 426 697 UUNET - Commercial IP service
7066 395 502 Virginia Polytechnic Institut
3356 376 730 Level 3 Communications, LLC
27364 375 381 Armstrong Cable Services
20115 364 583 Charter Communications
690 361 399 Merit Network
1239 340 950 Sprint
5668 283 320 Century Telephone
19029 264 406 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 234 405 Korea Internet Exchange for "
3320 227 280 Deutsche Telekom AG
6386 223 249 bellsouth.net, inc.
6517 216 241 Yipes Communications, Inc.
4355 215 390 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:764 13:1 15:6 16:1 17:3
20:7 24:877 32:81 38:44 40:26 44:1
55:1 56:1 57:11 61:343 62:443 63:1824
64:1806 65:1817 66:2215 67:248 68:710 69:377
80:433 81:179 82:61 128:141 129:260 130:69
131:78 132:17 134:176 135:16 136:129 137:115
138:127 139:38 140:158 141:133 142:111 143:48
144:83 145:39 146:290 147:73 148:317 149:86
150:119 151:60 152:209 153:59 154:1 155:122
156:61 157:55 158:134 159:142 160:46 161:51
162:367 163:70 164:328 165:175 166:104 167:208
168:176 169:96 170:296 171:8 192:5528 193:2500
194:1995 195:1305 196:515 198:3625 199:2830 200:2999
201:5 202:4284 203:5362 204:3020 205:2039 206:2251
207:2575 208:2450 209:2888 210:959 211:413 212:889
213:971 214:23 215:25 216:3387 217:784 218:116
219:80 220:153 221:18 222:1
End of report
