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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 03 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133923
Prefixes after maximum aggregation: 81854
Unique aggregates announced to Internet: 64642
Total ASes present in the Internet Routing Table: 16740
Origin-only ASes present in the Internet Routing Table: 14527
Origin ASes announcing only one prefix: 6719
Transit ASes present in the Internet Routing Table: 2213
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 31
Illegal AS announcements present in the Routing Table: 25
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1290564352
Equivalent to 76 /8s, 236 /16s and 115 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59333
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25052
Total APNIC prefixes after maximum aggregation: 13259
Prefixes being announced from the APNIC address blocks: 23438
Unique aggregates announced from the APNIC address blocks: 13222
APNIC Region origin ASes present in the Internet Routing Table: 2006
APNIC Region origin ASes announcing only one prefix: 590
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 137073568
Equivalent to 8 /8s, 43 /16s and 147 /24s
Percentage of available APNIC address space announced: 73.9
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: 77929
Total ARIN prefixes after maximum aggregation: 48221
Prefixes being announced from the ARIN address blocks: 60389
Unique aggregates announced from the ARIN address blocks: 20993
ARIN Region origin ASes present in the Internet Routing Table: 8985
ARIN Region origin ASes announcing only one prefix: 3197
ARIN Region transit ASes present in the Internet Routing Table: 871
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 219041824
Equivalent to 13 /8s, 14 /16s and 80 /24s
Percentage of available ARIN address space announced: 72.5
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: 24147
Total RIPE prefixes after maximum aggregation: 17504
Prefixes being announced from the RIPE address blocks: 21007
Unique aggregates announced from the RIPE address blocks: 13968
RIPE Region origin ASes present in the Internet Routing Table: 5227
RIPE Region origin ASes announcing only one prefix: 2809
RIPE Region transit ASes present in the Internet Routing Table: 898
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152626560
Equivalent to 9 /8s, 24 /16s and 229 /24s
Percentage of available RIPE address space announced: 70.0
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5594
Total LACNIC prefixes after maximum aggregation: 2196
Prefixes being announced from the LACNIC address blocks: 5221
Unique aggregates announced from the LACNIC address blocks: 3296
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 101
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14328064
Equivalent to 0 /8s, 218 /16s and 161 /24s
Percentage of available LACNIC address space announced: 42.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1180
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 746
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 89
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /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 895 1087 640 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 442 2914 242 Korea Internet Exchange for "
4755 362 130 57 Videsh Sanchar Nigam Ltd. Aut
2907 361 1847 338 SINET Japan
9583 350 42 24 Satyam Infoway Ltd.,
9443 347 70 81 Primus Telecommunications
703 339 374 261 UUNET
17557 333 24 161 Pakistan Telecom
2764 297 274 241 connect.com.au pty ltd
17676 296 4364 37 XTAGE CORPORATION
7474 270 304 210 Optus Communications Pty Ltd
9942 231 70 132 COMindico Australia
9929 228 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 191 30 37 BHARTI BT INTERNET LTD.
4837 166 1571 102 chinanet IDC center beijing n
9304 165 159 24 Hutchison Telecom (HK)
4739 151 60 138 Commerical Internet eXchange
7633 150 23 42 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1407 7218 983 AT&T
701 1337 8607 956 UUNET Technologies, Inc.
1239 933 3081 649 Sprint
3356 845 10955 682 Level 3 Communications, LLC
6197 740 491 251 BellSouth Network Solutions,
209 716 3531 504 Qwest
4323 697 544 204 Time Warner Communications, I
18566 691 192 9 Covad Communications
20115 620 347 341 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 513 1123 400 Telus Advanced Communications
7066 494 206 268 Virginia Polytechnic Institut
7843 493 582 121 Adelphia Corp.
7132 467 7834 321 Southwestern Bell Internet Se
2386 431 579 230 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 386 168 248 New Edge Networks
27364 385 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 677 2052 564 UUNET - Commercial IP service
3301 336 1178 315 TeliaNet Sweden
3320 286 1965 234 Deutsche Telekom AG
8220 264 411 252 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 190 447 188 Song Networks
786 175 1826 175 The JANET IP Service
8708 172 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 165 185 108 France Telecom Transpac's Tra
3215 164 800 78 France Telecom Transpac
5400 151 223 134 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 128 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 122 18 29 MobiFon S.A.
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 368 122 64 ImpSat
8151 260 384 127 UniNet S.A. de C.V.
11172 205 75 42 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 140 204 94 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11992 101 25 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 78 18 38 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
11311 70 7 17 Sinectis S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
14420 63 4 25 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 105 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
9129 32 3 4 UUNET Kenya
16637 25 9 18 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 19 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 13 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 682 Covad Communications
4134 669 551 Data Communications Bureau
4323 697 493 Time Warner Communications, I
6197 740 489 BellSouth Network Solutions,
701 1337 381 UUNET Technologies, Inc.
7843 493 372 Adelphia Corp.
27364 385 362 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 345 330 Century Telephone
22909 351 328 Comcast Cable Corporation
9583 350 326 Satyam Infoway Ltd.,
22773 348 312 Cox Communications, Inc. Atla
4755 362 305 Videsh Sanchar Nigam Ltd. Aut
6140 368 304 ImpSat
4355 397 294 EarthLink, Inc.
1239 933 284 Sprint
6347 365 284 SAVVIS Communications Corpora
20115 620 279 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 347 266 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
65400 PRIVATE 192.55.193.0/24 1290 PSINet UK Ltd.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
23799 UNALLOCATED 202.25.80.0/23 2907 SINET Japan
23799 UNALLOCATED 202.25.82.0/24 2500 WIDE Project
23799 UNALLOCATED 202.25.83.0/24 2907 SINET Japan
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
65412 PRIVATE 211.161.0.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.8.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.32.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.34.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.36.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.38.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.40.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.42.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.44.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.46.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.80.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.88.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.0.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.8.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.16.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.24.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.32.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.40.0/21 4847 China Networks Inter
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 /12:59
/13:106 /14:290 /15:508 /16:7591 /17:1910 /18:3488
/19:8995 /20:9397 /21:6839 /22:9675 /23:11205 /24:73110
/25:198 /26:285 /27:162 /28:24 /29:8 /30:14
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 578 740 BellSouth Network Solutions,
7018 500 1407 AT&T
3356 457 845 Level 3 Communications, LLC
702 412 677 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 389 494 Virginia Polytechnic Institut
20115 382 620 Charter Communications
27364 378 385 Armstrong Cable Services
701 371 1337 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 330 933 Sprint
5668 304 345 Century Telephone
4766 265 442 Korea Internet Exchange for "
19029 254 386 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 234 286 Deutsche Telekom AG
6517 226 248 Yipes Communications, Inc.
6386 222 246 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:778 13:1 15:4 16:1 17:3
20:6 24:833 32:84 38:51 40:26 44:2
55:1 56:1 57:13 61:383 62:467 63:1829
64:1870 65:1912 66:2344 67:280 68:618 69:424
80:446 81:220 82:91 83:9 128:138 129:258
130:41 131:79 132:16 134:174 135:16 136:185
137:107 138:152 139:44 140:148 141:135 142:106
143:46 144:79 145:37 146:286 147:73 148:366
149:85 150:122 151:62 152:215 153:60 154:1
155:128 156:66 157:50 158:148 159:139 160:48
161:52 162:371 163:75 164:323 165:162 166:99
167:212 168:189 169:107 170:293 171:8 192:5529
193:2592 194:1995 195:1331 196:525 198:3643 199:2967
200:3093 201:5 202:4447 203:5482 204:3001 205:2003
206:2276 207:2601 208:2367 209:2839 210:1114 211:462
212:895 213:1077 214:25 215:26 216:3318 217:846
218:150 219:99 220:176 221:19 222:6
End of report
