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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 29 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133865
Prefixes after maximum aggregation: 81789
Unique aggregates announced to Internet: 64418
Total ASes present in the Internet Routing Table: 16719
Origin-only ASes present in the Internet Routing Table: 14502
Origin ASes announcing only one prefix: 6705
Transit ASes present in the Internet Routing Table: 2217
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: 1289669348
Equivalent to 76 /8s, 222 /16s and 202 /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: 59324
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25002
Total APNIC prefixes after maximum aggregation: 13227
Prefixes being announced from the APNIC address blocks: 23395
Unique aggregates announced from the APNIC address blocks: 13210
APNIC Region origin ASes present in the Internet Routing Table: 2003
APNIC Region origin ASes announcing only one prefix: 591
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136919168
Equivalent to 8 /8s, 41 /16s and 56 /24s
Percentage of available APNIC address space announced: 73.8
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: 77969
Total ARIN prefixes after maximum aggregation: 48218
Prefixes being announced from the ARIN address blocks: 60300
Unique aggregates announced from the ARIN address blocks: 20898
ARIN Region origin ASes present in the Internet Routing Table: 8978
ARIN Region origin ASes announcing only one prefix: 3185
ARIN Region transit ASes present in the Internet Routing Table: 880
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218930464
Equivalent to 13 /8s, 12 /16s and 157 /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: 24120
Total RIPE prefixes after maximum aggregation: 17479
Prefixes being announced from the RIPE address blocks: 20982
Unique aggregates announced from the RIPE address blocks: 13927
RIPE Region origin ASes present in the Internet Routing Table: 5217
RIPE Region origin ASes announcing only one prefix: 2805
RIPE Region transit ASes present in the Internet Routing Table: 897
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152412032
Equivalent to 9 /8s, 21 /16s and 159 /24s
Percentage of available RIPE address space announced: 69.9
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: 5577
Total LACNIC prefixes after maximum aggregation: 2191
Prefixes being announced from the LACNIC address blocks: 5303
Unique aggregates announced from the LACNIC address blocks: 3215
LACNIC Region origin ASes present in the Internet Routing Table: 367
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14336000
Equivalent to 0 /8s, 218 /16s and 192 /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: 1176
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 745
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: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
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 898 1086 644 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 432 2913 238 Korea Internet Exchange for "
4755 361 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 359 1846 336 SINET Japan
9583 350 42 24 Satyam Infoway Ltd.,
9443 347 70 81 Primus Telecommunications
703 339 374 262 UUNET
17557 332 24 162 Pakistan Telecom
2764 296 274 241 connect.com.au pty ltd
17676 296 4364 37 XTAGE CORPORATION
7474 269 303 209 Optus Communications Pty Ltd
9942 229 70 130 COMindico Australia
9929 228 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 191 30 36 BHARTI BT INTERNET LTD.
9304 164 159 23 Hutchison Telecom (HK)
4837 163 1569 101 chinanet IDC center beijing n
7633 149 23 42 Software Technology Parks of
17964 149 120 57 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1401 7217 980 AT&T
701 1340 8611 956 UUNET Technologies, Inc.
1239 937 3081 654 Sprint
3356 836 10954 674 Level 3 Communications, LLC
6197 736 443 271 BellSouth Network Solutions,
209 717 3531 503 Qwest
4323 692 544 204 Time Warner Communications, I
18566 691 192 9 Covad Communications
20115 617 344 340 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 513 1123 400 Telus Advanced Communications
7066 498 206 270 Virginia Polytechnic Institut
7843 493 582 121 Adelphia Corp.
7132 467 7834 321 Southwestern Bell Internet Se
2386 432 579 230 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 387 168 248 New Edge Networks
27364 382 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 563 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 191 447 189 Song Networks
786 174 1810 174 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 163 800 77 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 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 358 121 61 ImpSat
8151 260 384 128 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 138 204 92 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
11556 88 73 25 Cable-Wireless Panama
11992 79 25 29 Integrated Systems
6535 78 5 20 Chilesat Servicios Empresari
15311 78 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 69 7 17 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 66 4 20 ANDINATEL S.A.
8065 62 16 23 Empresas Publicas de Medellin
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
5639 61 7 12 Telecommunications Services o
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
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 31 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 692 488 Time Warner Communications, I
6197 736 465 BellSouth Network Solutions,
701 1340 384 UUNET Technologies, Inc.
7843 493 372 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 344 329 Century Telephone
9583 350 326 Satyam Infoway Ltd.,
22909 344 323 Comcast Cable Corporation
22773 347 311 Cox Communications, Inc. Atla
4755 361 303 Videsh Sanchar Nigam Ltd. Aut
6140 358 297 ImpSat
4355 397 294 EarthLink, Inc.
6347 365 284 SAVVIS Communications Corpora
1239 937 283 Sprint
20115 617 277 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
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
65240 PRIVATE 216.145.32.0/20 18551 Rothschild, Inc.
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 /16:7584 /17:1899 /18:3485
/19:8995 /20:9364 /21:6836 /22:9655 /23:11225 /24:73102
/25:197 /26:286 /27:163 /28:28 /29:8 /30:16
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 577 736 BellSouth Network Solutions,
7018 498 1401 AT&T
3356 452 836 Level 3 Communications, LLC
702 412 677 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 392 498 Virginia Polytechnic Institut
20115 382 617 Charter Communications
27364 375 382 Armstrong Cable Services
701 373 1340 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 333 937 Sprint
5668 304 344 Century Telephone
4766 257 432 Korea Internet Exchange for "
19029 255 387 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 234 286 Deutsche Telekom AG
6517 225 247 Yipes Communications, Inc.
6386 223 249 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:777 13:1 15:4 16:1 17:3
20:6 24:830 32:84 38:51 40:26 44:2
55:1 56:1 57:13 61:379 62:467 63:1829
64:1848 65:1910 66:2354 67:280 68:616 69:422
80:479 81:216 82:87 83:8 128:140 129:256
130:41 131:79 132:16 134:174 135:16 136:181
137:107 138:151 139:42 140:151 141:135 142:106
143:48 144:79 145:37 146:285 147:75 148:366
149:81 150:123 151:62 152:215 153:60 154:1
155:127 156:65 157:50 158:149 159:140 160:51
161:54 162:370 163:73 164:327 165:162 166:99
167:212 168:189 169:106 170:296 171:8 192:5530
193:2591 194:1998 195:1330 196:524 198:3641 199:2947
200:3147 201:7 202:4452 203:5453 204:2993 205:1992
206:2276 207:2601 208:2372 209:2849 210:1112 211:463
212:902 213:1074 214:25 215:26 216:3296 217:855
218:148 219:98 220:172 221:19 222:6
End of report
