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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 05 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132470
Prefixes after maximum aggregation: 81454
Unique aggregates announced to Internet: 64239
Total ASes present in the Internet Routing Table: 16575
Origin-only ASes present in the Internet Routing Table: 14404
Origin ASes announcing only one prefix: 6643
Transit ASes present in the Internet Routing Table: 2171
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 28
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1283634020
Equivalent to 76 /8s, 130 /16s and 179 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24587
Total APNIC prefixes after maximum aggregation: 13238
Prefixes being announced from the APNIC address blocks: 22993
Unique aggregates announced from the APNIC address blocks: 13298
APNIC Region origin ASes present in the Internet Routing Table: 1995
APNIC Region origin ASes announcing only one prefix: 591
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 135523456
Equivalent to 8 /8s, 19 /16s and 236 /24s
Percentage of available APNIC address space announced: 73.0
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: 77510
Total ARIN prefixes after maximum aggregation: 48013
Prefixes being announced from the ARIN address blocks: 60001
Unique aggregates announced from the ARIN address blocks: 20876
ARIN Region origin ASes present in the Internet Routing Table: 8906
ARIN Region origin ASes announcing only one prefix: 3149
ARIN Region transit ASes present in the Internet Routing Table: 852
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215904928
Equivalent to 12 /8s, 222 /16s and 114 /24s
Percentage of available ARIN address space announced: 71.5
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23775
Total RIPE prefixes after maximum aggregation: 17322
Prefixes being announced from the RIPE address blocks: 20606
Unique aggregates announced from the RIPE address blocks: 13723
RIPE Region origin ASes present in the Internet Routing Table: 5146
RIPE Region origin ASes announcing only one prefix: 2774
RIPE Region transit ASes present in the Internet Routing Table: 886
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 150800768
Equivalent to 8 /8s, 253 /16s and 9 /24s
Percentage of available RIPE address space announced: 69.1
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: 5432
Total LACNIC prefixes after maximum aggregation: 2202
Prefixes being announced from the LACNIC address blocks: 5066
Unique aggregates announced from the LACNIC address blocks: 3220
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 103
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: 12
Number of LACNIC addresses announced to Internet: 14090752
Equivalent to 0 /8s, 215 /16s and 2 /24s
Percentage of available LACNIC address space announced: 42.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1161
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 735
Unique aggregates announced from the AfriNIC address blocks: 569
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
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: 15
Number of AfriNIC addresses announced to Internet: 1766656
Equivalent to 0 /8s, 26 /16s and 245 /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 936 1120 662 Telstra Pty Ltd
4134 670 2491 118 Data Communications Bureau
4766 421 2905 249 Korea Internet Exchange for "
2907 362 1831 338 SINET Japan
4755 349 130 59 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
703 340 372 263 UUNET
9583 340 40 91 Satyam Infoway Ltd.,
17557 321 23 157 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 280 288 234 connect.com.au pty ltd
7474 275 305 215 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 219 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 181 30 34 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
4739 147 60 134 Commerical Internet eXchange
4837 147 1425 97 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1404 7007 978 AT&T
701 1372 8662 967 UUNET Technologies, Inc.
1239 943 3088 658 Sprint
3356 803 10930 644 Level 3 Communications, LLC
6197 732 434 274 BellSouth Network Solutions,
209 717 3532 506 Qwest
18566 687 192 9 Covad Communications
4323 681 544 202 Time Warner Communications, I
20115 614 336 336 Charter Communications
6198 545 354 195 BellSouth Network Solutions,
7843 505 570 116 Adelphia Corp.
7066 503 207 271 Virginia Polytechnic Institut
852 502 1123 399 Telus Advanced Communications
7132 454 7449 313 Southwestern Bell Internet Se
2386 418 562 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 395 323 101 EarthLink, Inc.
19029 390 169 251 New Edge Networks
376 383 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 686 2073 571 UUNET - Commercial IP service
3301 336 1174 315 TeliaNet Sweden
3320 285 1971 232 Deutsche Telekom AG
8220 267 411 253 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 222 505 191 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 167 201 108 France Telecom Transpac's Tra
3215 155 787 71 France Telecom Transpac
5400 145 221 132 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 123 1005 65 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
6746 116 18 104 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 121 66 ImpSat
8151 246 368 125 UniNet S.A. de C.V.
11172 204 77 44 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
7303 137 51 30 Telecom Argentina Stet-France
6503 136 188 91 AVANTEL, S.A.
6505 132 90 92 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 71 25 28 Integrated Systems
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
14420 60 4 26 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia 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 104 8 3 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
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
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 687 678 Covad Communications
4134 670 552 Data Communications Bureau
4323 681 479 Time Warner Communications, I
6197 732 458 BellSouth Network Solutions,
701 1372 405 UUNET Technologies, Inc.
7843 505 389 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 545 350 BellSouth Network Solutions,
5668 349 333 Century Telephone
22909 337 319 Comcast Cable Corporation
22773 341 309 Cox Communications, Inc. Atla
4355 395 294 EarthLink, Inc.
6140 357 291 ImpSat
4755 349 290 Videsh Sanchar Nigam Ltd. Aut
1239 943 285 Sprint
20115 614 278 Charter Communications
1221 936 274 Telstra Pty Ltd
376 383 269 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 296 259 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
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
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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 /12:58
/13:105 /14:283 /15:502 /16:7550 /17:1877 /18:3466
/19:8910 /20:9252 /21:6775 /22:9537 /23:11080 /24:72369
/25:164 /26:261 /27:151 /28:26 /29:5 /30:44
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 670 687 Covad Communications
6197 578 732 BellSouth Network Solutions,
7018 510 1404 AT&T
3356 423 803 Level 3 Communications, LLC
702 416 686 UUNET - Commercial IP service
7066 397 503 Virginia Polytechnic Institut
701 395 1372 UUNET Technologies, Inc.
6198 393 545 BellSouth Network Solutions,
20115 388 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 330 943 Sprint
5668 309 349 Century Telephone
19029 256 390 New Edge Networks
4766 245 421 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 233 285 Deutsche Telekom AG
6517 227 251 Yipes Communications, Inc.
6386 221 247 bellsouth.net, inc.
13609 218 258 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:771 13:1 15:6 16:1 17:3
20:7 24:847 32:84 38:44 40:26 44:3
55:1 56:1 57:14 61:362 62:452 63:1825
64:1840 65:1841 66:2324 67:271 68:603 69:372
80:455 81:206 82:73 83:2 128:144 129:267
130:73 131:78 132:16 134:180 135:16 136:130
137:116 138:147 139:40 140:160 141:135 142:105
143:46 144:80 145:39 146:292 147:76 148:302
149:85 150:121 151:61 152:214 153:60 154:1
155:132 156:66 157:55 158:133 159:141 160:46
161:51 162:368 163:71 164:331 165:171 166:106
167:214 168:177 169:96 170:302 171:8 192:5532
193:2557 194:2005 195:1323 196:517 198:3627 199:2880
200:2976 201:7 202:4448 203:5429 204:3022 205:2005
206:2271 207:2582 208:2416 209:2884 210:1052 211:434
212:897 213:1009 214:23 215:25 216:3348 217:813
218:118 219:93 220:167 221:18 222:1
End of report
