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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130089
Prefixes after maximum aggregation: 80719
Unique aggregates announced to Internet: 61501
Total ASes present in the Internet Routing Table: 16150
Origin-only ASes present in the Internet Routing Table: 14022
Origin ASes announcing only one prefix: 6390
Transit ASes present in the Internet Routing Table: 2128
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1255465604
Equivalent to 74 /8s, 212 /16s and 226 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57604
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23414
Total APNIC prefixes after maximum aggregation: 12935
Prefixes being announced from the APNIC address blocks: 21815
Unique aggregates announced from the APNIC address blocks: 12545
APNIC Region origin ASes present in the Internet Routing Table: 1945
APNIC Region origin ASes announcing only one prefix: 576
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: 124964608
Equivalent to 7 /8s, 114 /16s and 207 /24s
Percentage of available APNIC address space announced: 67.3
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: 77025
Total ARIN prefixes after maximum aggregation: 48005
Prefixes being announced from the ARIN address blocks: 59681
Unique aggregates announced from the ARIN address blocks: 20463
ARIN Region origin ASes present in the Internet Routing Table: 8737
ARIN Region origin ASes announcing only one prefix: 3025
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: 208526752
Equivalent to 12 /8s, 109 /16s and 221 /24s
Percentage of available ARIN address space announced: 73.1
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: 22967
Total RIPE prefixes after maximum aggregation: 16823
Prefixes being announced from the RIPE address blocks: 19855
Unique aggregates announced from the RIPE address blocks: 12369
RIPE Region origin ASes present in the Internet Routing Table: 4940
RIPE Region origin ASes announcing only one prefix: 2654
RIPE Region transit ASes present in the Internet Routing Table: 868
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 142118656
Equivalent to 8 /8s, 120 /16s and 143 /24s
Percentage of available RIPE address space announced: 77.0
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5570
Total LACNIC prefixes after maximum aggregation: 2250
Prefixes being announced from the LACNIC address blocks: 5092
Unique aggregates announced from the LACNIC address blocks: 3199
LACNIC Region origin ASes present in the Internet Routing Table: 359
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: 5.4
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13484544
Equivalent to 0 /8s, 205 /16s and 194 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1108
Total AfriNIC prefixes after maximum aggregation: 706
Prefixes being announced from the AfriNIC address blocks: 717
Unique aggregates announced from the AfriNIC address blocks: 553
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748736
Equivalent to 0 /8s, 26 /16s and 175 /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 952 1108 676 Telstra Pty Ltd
4755 390 134 70 Videsh Sanchar Nigam Ltd. Aut
4134 369 2371 109 Data Communications Bureau
2907 368 1879 345 SINET Japan
703 331 356 264 UUNET
17557 295 20 150 Pakistan Telecom
2764 293 288 252 connect.com.au pty ltd
17676 279 4124 34 XTAGE CORPORATION
9583 269 44 11 Satyam Infoway Ltd.,
7474 266 306 212 Optus Communications Pty Ltd
4766 257 2463 184 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9443 213 72 83 Primus Telecommunications
9800 206 343 56 CHINA UNICOM
9498 204 21 28 BHARTI BT INTERNET LTD.
9942 203 70 117 COMindico Australia
9929 192 163 36 China Netcom Corp.
17642 156 40 115 RequestDSL BGP AS# for Sydney
4739 146 60 135 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1434 8666 991 UUNET Technologies, Inc.
7018 1365 7019 945 AT&T
209 1097 3471 529 Qwest
1239 921 3053 666 Sprint
18566 719 176 8 Covad Communications
4323 685 592 200 Time Warner Communications, I
6197 664 402 270 BellSouth Network Solutions,
3356 618 10803 507 Level 3 Communications, LLC
6198 575 328 196 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
7843 521 482 119 Adelphia Corp.
852 516 1106 406 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 501 7192 302 Southwestern Bell Internet Se
19029 420 174 275 New Edge Networks
690 410 59 275 Merit Network
4355 400 331 107 EarthLink, Inc.
2386 397 558 204 AT&T Data Communications Serv
705 394 183 238 UUNET Technologies, Inc.
376 359 359 115 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 698 2094 579 UUNET - Commercial IP service
3301 310 1169 288 TeliaNet Sweden
3320 278 2004 235 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 135 BT Ignite European Backbone
5515 180 778 142 Sonera Solution Autonomous Sy
786 174 1825 174 The JANET IP Service
3215 173 703 83 France Telecom Transpac
8708 160 111 154 Romania Data Systems S.A.
3303 145 557 139 Swisscom Ltd
25186 142 165 102 France Telecom Transpac's Tra
719 135 288 104 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
2856 117 1294 108 BTnet UK Regional network
3269 117 910 64 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 104 99 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
7303 198 42 48 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
6147 112 70 19 Telefonica Del Peru
11340 106 3 29 Red Universitaria Nacional
11992 87 24 30 Integrated Systems
8065 86 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14535 61 6 6 Techtel S.A.
1916 60 266 40 Fundacao de Amparo a Pesquisa
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
15706 15 2 5 Sudatel Internet Exchange Aut
3208 14 2 1 ARN Network
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 719 711 Covad Communications
209 1097 568 Qwest
4323 685 485 Time Warner Communications, I
7018 1365 420 AT&T
7843 521 402 Adelphia Corp.
6197 664 394 BellSouth Network Solutions,
6198 575 379 BellSouth Network Solutions,
4755 390 320 Videsh Sanchar Nigam Ltd. Aut
27364 338 315 Armstrong Cable Services
4355 400 293 EarthLink, Inc.
5668 309 292 Century Telephone
22909 308 286 Comcast Cable Corporation
22773 299 280 Cox Communications, Inc. Atla
1221 952 276 Telstra Pty Ltd
6347 345 265 SAVVIS Communications Corpora
4134 369 260 Data Communications Bureau
9583 269 258 Satyam Infoway Ltd.,
1239 921 255 Sprint
17676 279 245 XTAGE CORPORATION
376 359 244 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 130.150.241.0/24 2152 California State Uni
64512 PRIVATE 130.150.242.0/24 2152 California State Uni
64512 PRIVATE 130.150.244.0/24 2152 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65535 PRIVATE 203.115.81.0/24 23682 Broadband Pacenet In
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
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 /11:13 /12:57
/13:96 /14:271 /15:469 /16:7450 /17:1787 /18:3237
/19:8613 /20:9144 /21:6667 /22:9503 /23:10879 /24:71092
/25:178 /26:243 /27:172 /28:71 /29:24 /30:49
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 713 719 Covad Communications
6197 523 664 BellSouth Network Solutions,
7018 491 1365 AT&T
209 451 1097 Qwest
6198 442 575 BellSouth Network Solutions,
701 441 1434 UUNET Technologies, Inc.
702 419 698 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
27364 332 338 Armstrong Cable Services
1239 328 921 Sprint
3356 309 618 Level 3 Communications, LLC
5668 275 309 Century Telephone
19029 271 420 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 221 400 EarthLink, Inc.
3320 220 278 Deutsche Telekom AG
6517 208 232 Yipes Communications, Inc.
14824 200 225 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:745 13:1 15:6 16:1 17:2
20:7 24:849 25:1 32:82 38:52 40:23
43:1 44:2 55:1 56:2 57:14 61:333
62:453 63:1837 64:1797 65:1798 66:2181 67:273
68:415 69:311 80:432 81:158 82:68 128:153
129:158 130:66 131:82 132:17 134:172 135:10
136:184 137:121 138:132 139:48 140:194 141:138
142:102 143:46 144:59 145:36 146:282 147:67
148:305 149:82 150:121 151:78 152:213 153:59
154:1 155:130 156:65 157:59 158:139 159:141
160:46 161:68 162:364 163:67 164:323 165:155
166:105 167:301 168:179 169:94 170:317 171:9
192:5453 193:2419 194:2037 195:1342 196:510 198:3614
199:2810 200:3044 201:3 202:4194 203:5362 204:2960
205:2004 206:2295 207:2610 208:2510 209:2822 210:953
211:394 212:954 213:948 214:17 215:25 216:3358
217:779 218:113 219:92 220:114 221:20 222:1
End of report
