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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 30 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132032
Prefixes after maximum aggregation: 81295
Unique aggregates announced to Internet: 63854
Total ASes present in the Internet Routing Table: 16551
Origin-only ASes present in the Internet Routing Table: 14363
Origin ASes announcing only one prefix: 6646
Transit ASes present in the Internet Routing Table: 2188
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 19
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: 1282274404
Equivalent to 76 /8s, 109 /16s and 244 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58335
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24394
Total APNIC prefixes after maximum aggregation: 13164
Prefixes being announced from the APNIC address blocks: 22811
Unique aggregates announced from the APNIC address blocks: 13084
APNIC Region origin ASes present in the Internet Routing Table: 1983
APNIC Region origin ASes announcing only one prefix: 591
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 135057280
Equivalent to 8 /8s, 12 /16s and 207 /24s
Percentage of available APNIC address space announced: 72.8
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: 77417
Total ARIN prefixes after maximum aggregation: 47968
Prefixes being announced from the ARIN address blocks: 59947
Unique aggregates announced from the ARIN address blocks: 20853
ARIN Region origin ASes present in the Internet Routing Table: 8899
ARIN Region origin ASes announcing only one prefix: 3153
ARIN Region transit ASes present in the Internet Routing Table: 849
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215733920
Equivalent to 12 /8s, 219 /16s and 214 /24s
Percentage of available ARIN address space announced: 71.4
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: 23697
Total RIPE prefixes after maximum aggregation: 17282
Prefixes being announced from the RIPE address blocks: 20531
Unique aggregates announced from the RIPE address blocks: 13652
RIPE Region origin ASes present in the Internet Routing Table: 5143
RIPE Region origin ASes announcing only one prefix: 2773
RIPE Region transit ASes present in the Internet Routing Table: 904
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 150366336
Equivalent to 8 /8s, 246 /16s and 104 /24s
Percentage of available RIPE address space announced: 68.9
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: 5361
Total LACNIC prefixes after maximum aggregation: 2205
Prefixes being announced from the LACNIC address blocks: 4990
Unique aggregates announced from the LACNIC address blocks: 3151
LACNIC Region origin ASes present in the Internet Routing Table: 366
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: 13
Number of LACNIC addresses announced to Internet: 14006272
Equivalent to 0 /8s, 213 /16s and 184 /24s
Percentage of available LACNIC address space announced: 41.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1158
Total AfriNIC prefixes after maximum aggregation: 676
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: 5.1
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 937 1120 663 Telstra Pty Ltd
4134 674 2457 116 Data Communications Bureau
4766 411 2905 244 Korea Internet Exchange for "
2907 361 1831 337 SINET Japan
9443 345 69 80 Primus Telecommunications
703 338 372 265 UUNET
17557 320 23 158 Pakistan Telecom
9583 307 41 31 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 282 288 236 connect.com.au pty ltd
7474 275 305 215 Optus Communications Pty Ltd
4755 267 130 60 Videsh Sanchar Nigam Ltd. Aut
9942 225 69 129 COMindico Australia
9929 217 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 181 30 34 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
7633 149 23 40 Software Technology Parks of
4739 146 60 133 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1399 7022 976 AT&T
701 1369 8662 963 UUNET Technologies, Inc.
1239 946 3108 661 Sprint
3356 768 10960 613 Level 3 Communications, LLC
209 717 3534 508 Qwest
18566 686 192 9 Covad Communications
4323 682 528 200 Time Warner Communications, I
6197 682 400 236 BellSouth Network Solutions,
20115 607 332 339 Charter Communications
6198 596 386 230 BellSouth Network Solutions,
7843 513 570 116 Adelphia Corp.
7066 503 207 271 Virginia Polytechnic Institut
852 502 1124 400 Telus Advanced Communications
7132 452 7417 311 Southwestern Bell Internet Se
2386 419 544 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 395 323 101 EarthLink, Inc.
19029 394 169 252 New Edge Networks
376 382 359 114 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
702 687 2058 572 UUNET - Commercial IP service
3301 336 1174 315 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 266 408 251 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 223 505 191 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 Song Networks
786 175 1826 175 The JANET IP Service
5515 169 762 135 Sonera Solution Autonomous Sy
8708 168 111 160 Romania Data Systems S.A.
25186 168 201 109 France Telecom Transpac's Tra
3215 153 791 70 France Telecom Transpac
5400 142 223 131 BT Ignite European Backbone
3303 136 556 136 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 123 1005 65 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
6746 105 17 94 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 121 66 ImpSat
8151 244 350 126 UniNet S.A. de C.V.
11172 205 77 45 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 139 220 93 AVANTEL, S.A.
7303 136 51 33 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 68 25 29 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
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
14420 59 4 26 ANDINATEL S.A.
5639 58 7 8 Telecommunications Services o
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 686 677 Covad Communications
4134 674 558 Data Communications Bureau
4323 682 482 Time Warner Communications, I
6197 682 446 BellSouth Network Solutions,
701 1369 406 UUNET Technologies, Inc.
7843 513 397 Adelphia Corp.
6198 596 366 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
22909 334 316 Comcast Cable Corporation
5668 322 306 Century Telephone
22773 337 303 Cox Communications, Inc. Atla
4355 395 294 EarthLink, Inc.
6140 358 292 ImpSat
1239 946 285 Sprint
9583 307 276 Satyam Infoway Ltd.,
1221 937 274 Telstra Pty Ltd
20115 607 268 Charter Communications
376 382 268 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 295 257 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 /14:281 /15:501 /16:7549 /17:1865 /18:3456
/19:8888 /20:9237 /21:6692 /22:9496 /23:11042 /24:72173
/25:164 /26:256 /27:149 /28:25 /29:5 /30:37
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 669 686 Covad Communications
6197 531 682 BellSouth Network Solutions,
7018 507 1399 AT&T
6198 444 596 BellSouth Network Solutions,
702 417 687 UUNET - Commercial IP service
3356 397 768 Level 3 Communications, LLC
7066 397 503 Virginia Polytechnic Institut
701 394 1369 UUNET Technologies, Inc.
20115 386 607 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 946 Sprint
5668 285 322 Century Telephone
19029 259 394 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 238 411 Korea Internet Exchange for "
3320 228 280 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 219 243 Yipes Communications, Inc.
4355 215 395 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:766 13:1 15:6 16:1 17:3
20:7 24:852 32:82 38:44 40:26 44:2
55:1 56:1 57:13 61:358 62:454 63:1824
64:1820 65:1842 66:2271 67:266 68:591 69:375
80:453 81:216 82:73 128:143 129:264 130:73
131:80 132:16 134:178 135:16 136:128 137:116
138:146 139:40 140:157 141:135 142:104 143:49
144:82 145:39 146:293 147:73 148:301 149:85
150:122 151:61 152:214 153:60 154:1 155:132
156:66 157:55 158:135 159:144 160:46 161:52
162:366 163:71 164:331 165:172 166:106 167:213
168:177 169:96 170:303 171:8 192:5519 193:2529
194:2004 195:1307 196:517 198:3642 199:2884 200:2975
201:7 202:4391 203:5408 204:3022 205:2012 206:2269
207:2587 208:2437 209:2889 210:1028 211:425 212:900
213:999 214:23 215:25 216:3372 217:819 218:118
219:82 220:164 221:18 222:1
End of report
