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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131161
Prefixes after maximum aggregation: 80714
Unique aggregates announced to Internet: 63107
Total ASes present in the Internet Routing Table: 16362
Origin-only ASes present in the Internet Routing Table: 14222
Origin ASes announcing only one prefix: 6500
Transit ASes present in the Internet Routing Table: 2140
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: 22
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1272843364
Equivalent to 75 /8s, 222 /16s and 12 /24s
Percentage of available address space announced: 34.3
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57689
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24021
Total APNIC prefixes after maximum aggregation: 12975
Prefixes being announced from the APNIC address blocks: 22475
Unique aggregates announced from the APNIC address blocks: 12822
APNIC Region origin ASes present in the Internet Routing Table: 1966
APNIC Region origin ASes announcing only one prefix: 580
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 132781440
Equivalent to 7 /8s, 234 /16s and 21 /24s
Percentage of available APNIC address space announced: 71.5
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: 77142
Total ARIN prefixes after maximum aggregation: 47802
Prefixes being announced from the ARIN address blocks: 59655
Unique aggregates announced from the ARIN address blocks: 20638
ARIN Region origin ASes present in the Internet Routing Table: 8824
ARIN Region origin ASes announcing only one prefix: 3088
ARIN Region transit ASes present in the Internet Routing Table: 837
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 212145312
Equivalent to 12 /8s, 165 /16s and 20 /24s
Percentage of available ARIN address space announced: 74.4
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23261
Total RIPE prefixes after maximum aggregation: 17000
Prefixes being announced from the RIPE address blocks: 20132
Unique aggregates announced from the RIPE address blocks: 13383
RIPE Region origin ASes present in the Internet Routing Table: 5047
RIPE Region origin ASes announcing only one prefix: 2696
RIPE Region transit ASes present in the Internet Routing Table: 882
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 147309952
Equivalent to 8 /8s, 199 /16s and 197 /24s
Percentage of available RIPE address space announced: 67.5
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: 5599
Total LACNIC prefixes after maximum aggregation: 2240
Prefixes being announced from the LACNIC address blocks: 5219
Unique aggregates announced from the LACNIC address blocks: 3224
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13738496
Equivalent to 0 /8s, 209 /16s and 162 /24s
Percentage of available LACNIC address space announced: 40.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1128
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1757184
Equivalent to 0 /8s, 26 /16s and 208 /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 926 1099 661 Telstra Pty Ltd
4134 634 2397 108 Data Communications Bureau
2907 362 1847 340 SINET Japan
9443 344 69 80 Primus Telecommunications
703 332 356 258 UUNET
4755 324 130 60 Videsh Sanchar Nigam Ltd. Aut
17557 309 22 152 Pakistan Telecom
17676 291 4284 37 XTAGE CORPORATION
2764 289 289 239 connect.com.au pty ltd
4766 268 2897 193 Korea Internet Exchange for "
7474 262 306 211 Optus Communications Pty Ltd
9583 262 44 11 Satyam Infoway Ltd.,
4538 249 1810 20 China Education and Research
3786 233 771 203 DACOM Corporation
9929 220 154 27 China Netcom Corp.
9942 213 69 125 COMindico Australia
9800 212 347 59 CHINA UNICOM
9498 172 22 31 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
4837 148 1271 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 7074 989 AT&T
701 1418 8665 974 UUNET Technologies, Inc.
1239 949 3103 658 Sprint
209 900 3530 516 Qwest
6197 792 475 248 BellSouth Network Solutions,
18566 733 176 8 Covad Communications
3356 714 10876 565 Level 3 Communications, LLC
4323 677 589 204 Time Warner Communications, I
20115 582 320 332 Charter Communications
6198 565 338 192 BellSouth Network Solutions,
852 507 1124 403 Telus Advanced Communications
7066 506 207 270 Virginia Polytechnic Institut
7843 506 520 120 Adelphia Corp.
7132 452 7357 313 Southwestern Bell Internet Se
19029 416 174 269 New Edge Networks
2386 402 527 209 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 388 323 99 EarthLink, Inc.
705 382 196 237 UUNET Technologies, Inc.
27364 381 28 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 683 2074 566 UUNET - Commercial IP service
3301 299 1154 283 TeliaNet Sweden
3320 284 1972 232 Deutsche Telekom AG
8220 263 423 249 COLT Internet - International
1257 257 505 192 SWIPnet Swedish IP Network
680 229 2022 226 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 185 424 183 Song Networks
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 164 111 157 Romania Data Systems S.A.
3303 144 557 137 Swisscom Ltd
5400 141 176 126 BT Ignite European Backbone
3215 139 706 66 France Telecom Transpac
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 116 1294 107 BTnet UK Regional network
3352 102 876 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 44 Servicios Alestra S.A de C.V
7303 179 45 33 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
10620 129 11 35 TVCABLE BOGOTA
6503 127 204 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
8065 77 10 21 Empresas Publicas de Medellin
6535 76 5 19 Chilesat Servicios Empresari
15311 76 16 39 Telefonica Empresas
6429 74 51 13 AT&T Chile Internet S.A.
11992 74 24 31 Integrated Systems
4270 71 18 9 Red de Interconexion Universi
11311 67 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 ANDINATEL S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
2905 91 272 81 The Internetworking Company o
5536 89 7 22 Internet Egypt Network
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
3208 32 2 1 ARN Network
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
2609 11 10 3 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 733 725 Covad Communications
6197 792 544 BellSouth Network Solutions,
4134 634 526 Data Communications Bureau
4323 677 473 Time Warner Communications, I
701 1418 444 UUNET Technologies, Inc.
7843 506 386 Adelphia Corp.
209 900 384 Qwest
6198 565 373 BellSouth Network Solutions,
27364 381 357 Armstrong Cable Services
22909 320 307 Comcast Cable Corporation
5668 315 299 Century Telephone
1239 949 291 Sprint
22773 322 290 Cox Communications, Inc. Atla
4355 388 289 EarthLink, Inc.
6140 346 280 ImpSat
1221 926 265 Telstra Pty Ltd
9443 344 264 Primus Telecommunications
4755 324 264 Videsh Sanchar Nigam Ltd. Aut
17676 291 254 XTAGE CORPORATION
6347 330 251 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
31758 UNALLOCATED 69.22.180.0/24 4474 Global Village Commu
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
31763 UNALLOCATED 205.235.32.0/19 3593 EPIX
31763 UNALLOCATED 205.235.48.0/24 3593 EPIX
31763 UNALLOCATED 205.235.49.0/24 3593 EPIX
31749 UNALLOCATED 216.248.43.0/24 19094 Adelphia Business So
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 /12:57
/13:101 /14:277 /15:487 /16:7513 /17:1842 /18:3421
/19:8810 /20:9307 /21:6694 /22:9365 /23:11036 /24:71533
/25:193 /26:254 /27:139 /28:33 /29:8 /30:38
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 727 733 Covad Communications
6197 643 792 BellSouth Network Solutions,
7018 529 1427 AT&T
701 431 1418 UUNET Technologies, Inc.
6198 423 565 BellSouth Network Solutions,
702 411 683 UUNET - Commercial IP service
7066 399 506 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
20115 364 582 Charter Communications
3356 362 714 Level 3 Communications, LLC
690 361 400 Merit Network
1239 339 949 Sprint
209 298 900 Qwest
5668 278 315 Century Telephone
19029 270 416 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 227 284 Deutsche Telekom AG
4355 215 388 EarthLink, Inc.
6517 210 235 Yipes Communications, Inc.
6386 205 231 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 12:757 13:1 14:1 15:6
16:1 17:3 20:7 24:874 32:83 38:43
40:25 44:2 55:1 56:1 57:14 61:319
62:454 63:1838 64:1782 65:1787 66:2178 67:273
68:635 69:364 80:438 81:175 82:58 128:146
129:260 130:67 131:80 132:17 134:177 135:16
136:184 137:114 138:125 139:31 140:164 141:134
142:111 143:49 144:61 145:39 146:286 147:73
148:317 149:87 150:119 151:60 152:210 153:57
154:1 155:131 156:60 157:62 158:133 159:137
160:46 161:49 162:353 163:71 164:330 165:176
166:102 167:211 168:181 169:96 170:299 171:8
192:5511 193:2461 194:2009 195:1312 196:515 198:3630
199:2840 200:3100 201:5 202:4251 203:5359 204:2961
205:2038 206:2261 207:2595 208:2472 209:2862 210:1002
211:398 212:934 213:959 214:23 215:25 216:3340
217:790 218:120 219:78 220:113 221:17
End of report
