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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 07 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 134277
Prefixes after maximum aggregation: 82126
Unique aggregates announced to Internet: 64965
Total ASes present in the Internet Routing Table: 16775
Origin-only ASes present in the Internet Routing Table: 14557
Origin ASes announcing only one prefix: 6733
Transit ASes present in the Internet Routing Table: 2218
Transit-only ASes present in the Internet Routing Table: 65
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: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1291178148
Equivalent to 76 /8s, 245 /16s and 208 /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: 59593
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25107
Total APNIC prefixes after maximum aggregation: 13360
Prefixes being announced from the APNIC address blocks: 23494
Unique aggregates announced from the APNIC address blocks: 13518
APNIC Region origin ASes present in the Internet Routing Table: 2018
APNIC Region origin ASes announcing only one prefix: 597
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 137406976
Equivalent to 8 /8s, 48 /16s and 170 /24s
Percentage of available APNIC address space announced: 74.0
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: 78047
Total ARIN prefixes after maximum aggregation: 48299
Prefixes being announced from the ARIN address blocks: 60411
Unique aggregates announced from the ARIN address blocks: 20968
ARIN Region origin ASes present in the Internet Routing Table: 8995
ARIN Region origin ASes announcing only one prefix: 3196
ARIN Region transit ASes present in the Internet Routing Table: 877
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 219200032
Equivalent to 13 /8s, 16 /16s and 186 /24s
Percentage of available ARIN address space announced: 72.6
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: 24269
Total RIPE prefixes after maximum aggregation: 17582
Prefixes being announced from the RIPE address blocks: 21129
Unique aggregates announced from the RIPE address blocks: 14009
RIPE Region origin ASes present in the Internet Routing Table: 5243
RIPE Region origin ASes announcing only one prefix: 2816
RIPE Region transit ASes present in the Internet Routing Table: 900
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152791168
Equivalent to 9 /8s, 27 /16s and 104 /24s
Percentage of available RIPE address space announced: 70.1
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: 5652
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 5308
Unique aggregates announced from the LACNIC address blocks: 3283
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 100
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14310912
Equivalent to 0 /8s, 218 /16s and 94 /24s
Percentage of available LACNIC address space announced: 42.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1187
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 742
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 24
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: 15
Number of AfriNIC addresses announced to Internet: 1766144
Equivalent to 0 /8s, 26 /16s and 243 /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 883 1086 639 Telstra Pty Ltd
4134 663 2489 116 Data Communications Bureau
4766 444 2914 243 Korea Internet Exchange for "
9583 388 38 99 Satyam Infoway Ltd.,
4755 361 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 360 1846 337 SINET Japan
9443 347 70 81 Primus Telecommunications
703 340 374 262 UUNET
17557 325 23 167 Pakistan Telecom
17676 297 4380 38 XTAGE CORPORATION
2764 296 274 241 connect.com.au pty ltd
7474 270 304 210 Optus Communications Pty Ltd
9942 231 70 132 COMindico Australia
9929 228 155 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 192 30 36 BHARTI BT INTERNET LTD.
4837 169 1571 102 chinanet IDC center beijing n
9304 168 159 24 Hutchison Telecom (HK)
4739 151 60 138 Commerical Internet eXchange
7633 151 23 42 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1408 7203 984 AT&T
701 1343 8576 961 UUNET Technologies, Inc.
1239 931 3065 647 Sprint
3356 849 10955 678 Level 3 Communications, LLC
209 719 3532 507 Qwest
18566 691 192 8 Covad Communications
4323 683 558 199 Time Warner Communications, I
6197 676 442 272 BellSouth Network Solutions,
20115 610 345 332 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 513 1123 400 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7843 491 582 120 Adelphia Corp.
7132 467 7834 321 Southwestern Bell Internet Se
2386 432 579 231 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
27364 388 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
19029 373 168 248 New Edge Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 675 2040 564 UUNET - Commercial IP service
3301 337 1178 316 TeliaNet Sweden
3320 287 1965 235 Deutsche Telekom AG
8220 263 411 251 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
1257 234 510 191 SWIPnet Swedish IP Network
719 233 288 105 LANLINK autonomous system
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 168 762 135 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 127 19 110 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 121 17 28 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 373 122 64 ImpSat
8151 260 384 127 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 140 220 96 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11992 101 25 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
8167 80 220 12 TELESC - Telecomunicacoes de
6535 78 5 20 Chilesat Servicios Empresari
15311 78 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 66 7 26 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
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 218 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 38 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
8346 14 6 13 SONATEL-AS Autonomous System
17148 14 1 8 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 683 Covad Communications
4134 663 547 Data Communications Bureau
4323 683 484 Time Warner Communications, I
6197 676 404 BellSouth Network Solutions,
701 1343 382 UUNET Technologies, Inc.
7843 491 371 Adelphia Corp.
27364 388 365 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 349 334 Century Telephone
22909 356 332 Comcast Cable Corporation
22773 348 313 Cox Communications, Inc. Atla
6140 373 309 ImpSat
4755 361 303 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
9583 388 289 Satyam Infoway Ltd.,
6347 366 285 SAVVIS Communications Corpora
1239 931 284 Sprint
20115 610 278 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
65400 PRIVATE 192.55.193.0/24 1290 PSINet UK Ltd.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64541 PRIVATE 209.120.215.0/24 22551 Anobi Technology Cor
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
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
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
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 /14:291 /15:508 /16:7594 /17:1911 /18:3489
/19:9004 /20:9421 /21:6855 /22:9679 /23:11201 /24:73410
/25:195 /26:284 /27:159 /28:30 /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 516 676 BellSouth Network Solutions,
7018 501 1408 AT&T
3356 460 849 Level 3 Communications, LLC
702 411 675 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 394 499 Virginia Polytechnic Institut
27364 381 388 Armstrong Cable Services
701 374 1343 UUNET Technologies, Inc.
20115 373 610 Charter Communications
690 360 397 Merit Network
1239 329 931 Sprint
5668 308 349 Century Telephone
4766 267 444 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
19029 241 373 New Edge Networks
3320 235 287 Deutsche Telekom AG
9583 234 388 Satyam Infoway Ltd.,
6517 230 252 Yipes Communications, Inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:797 13:1 15:4 16:1 17:3
20:6 24:839 32:82 38:51 40:26 44:3
55:1 56:1 57:13 61:382 62:488 63:1824
64:1880 65:1914 66:2366 67:280 68:561 69:430
80:468 81:223 82:92 83:8 128:137 129:253
130:71 131:79 132:16 134:174 135:16 136:185
137:108 138:151 139:42 140:148 141:135 142:105
143:48 144:77 145:37 146:287 147:74 148:365
149:85 150:101 151:62 152:214 153:60 154:1
155:127 156:62 157:49 158:148 159:139 160:50
161:53 162:375 163:74 164:323 165:161 166:98
167:211 168:199 169:107 170:301 171:8 192:5521
193:2600 194:2009 195:1341 196:520 198:3648 199:2954
200:3135 201:21 202:4469 203:5488 204:2984 205:1993
206:2278 207:2621 208:2379 209:2880 210:1149 211:463
212:905 213:1075 214:26 215:26 216:3346 217:848
218:154 219:100 220:189 221:19 222:6
End of report
