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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130204
Prefixes after maximum aggregation: 80758
Unique aggregates announced to Internet: 62347
Total ASes present in the Internet Routing Table: 16165
Origin-only ASes present in the Internet Routing Table: 14024
Origin ASes announcing only one prefix: 6405
Transit ASes present in the Internet Routing Table: 2141
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1254694276
Equivalent to 74 /8s, 201 /16s and 29 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57642
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23573
Total APNIC prefixes after maximum aggregation: 12898
Prefixes being announced from the APNIC address blocks: 21975
Unique aggregates announced from the APNIC address blocks: 12584
APNIC Region origin ASes present in the Internet Routing Table: 1942
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 316
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 125184512
Equivalent to 7 /8s, 118 /16s and 42 /24s
Percentage of available APNIC address space announced: 67.4
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: 76944
Total ARIN prefixes after maximum aggregation: 48046
Prefixes being announced from the ARIN address blocks: 59699
Unique aggregates announced from the ARIN address blocks: 20540
ARIN Region origin ASes present in the Internet Routing Table: 8742
ARIN Region origin ASes announcing only one prefix: 3028
ARIN Region transit ASes present in the Internet Routing Table: 832
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208785312
Equivalent to 12 /8s, 113 /16s and 207 /24s
Percentage of available ARIN address space announced: 73.2
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: 23019
Total RIPE prefixes after maximum aggregation: 16852
Prefixes being announced from the RIPE address blocks: 19891
Unique aggregates announced from the RIPE address blocks: 13117
RIPE Region origin ASes present in the Internet Routing Table: 4952
RIPE Region origin ASes announcing only one prefix: 2663
RIPE Region transit ASes present in the Internet Routing Table: 880
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 140982016
Equivalent to 8 /8s, 103 /16s and 55 /24s
Percentage of available RIPE address space announced: 76.4
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5556
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 5092
Unique aggregates announced from the LACNIC address blocks: 3185
LACNIC Region origin ASes present in the Internet Routing Table: 359
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13470464
Equivalent to 0 /8s, 205 /16s and 139 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1111
Total AfriNIC prefixes after maximum aggregation: 709
Prefixes being announced from the AfriNIC address blocks: 722
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 31
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: 16
Number of AfriNIC addresses announced to Internet: 1753344
Equivalent to 0 /8s, 26 /16s and 193 /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 958 1108 677 Telstra Pty Ltd
4134 370 2387 110 Data Communications Bureau
2907 369 1880 346 SINET Japan
4755 367 131 58 Videsh Sanchar Nigam Ltd. Aut
703 329 356 262 UUNET
17557 308 22 150 Pakistan Telecom
9443 300 72 83 Primus Telecommunications
2764 290 288 249 connect.com.au pty ltd
17676 280 4140 31 XTAGE CORPORATION
9583 271 44 11 Satyam Infoway Ltd.,
7474 267 306 213 Optus Communications Pty Ltd
4766 257 2463 184 Korea Internet Exchange for "
4538 247 1714 21 China Education and Research
3786 233 773 203 DACOM Corporation
9929 210 163 36 China Netcom Corp.
9498 208 22 29 BHARTI BT INTERNET LTD.
9800 207 343 57 CHINA UNICOM
9942 205 70 118 COMindico Australia
17642 155 40 114 RequestDSL BGP AS# for Sydney
4739 145 60 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1435 8651 994 UUNET Technologies, Inc.
7018 1369 7034 948 AT&T
1239 921 3052 665 Sprint
209 874 3471 529 Qwest
18566 720 176 8 Covad Communications
4323 685 592 200 Time Warner Communications, I
6197 679 403 269 BellSouth Network Solutions,
3356 623 10803 511 Level 3 Communications, LLC
6198 576 332 196 BellSouth Network Solutions,
20115 541 280 307 Charter Communications
7843 526 489 123 Adelphia Corp.
852 515 1107 408 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 500 7191 297 Southwestern Bell Internet Se
19029 410 174 275 New Edge Networks
690 400 58 270 Merit Network
4355 398 331 105 EarthLink, Inc.
2386 395 543 205 AT&T Data Communications Serv
705 393 183 237 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2094 578 UUNET - Commercial IP service
3301 310 1169 288 TeliaNet Sweden
3320 276 2004 233 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 136 BT Ignite European Backbone
5515 176 778 138 Sonera Solution Autonomous Sy
786 175 1826 175 The JANET IP Service
3215 164 703 83 France Telecom Transpac
8708 161 111 155 Romania Data Systems S.A.
25186 151 166 108 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 105 101 ImpSat
8151 235 351 125 UniNet S.A. de C.V.
7303 195 42 48 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 AVANTEL, S.A.
6147 122 70 19 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 106 3 29 Red Universitaria Nacional
11992 87 25 32 Integrated Systems
8065 79 10 17 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14535 61 6 6 Techtel S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 633 220 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
9129 26 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
16637 24 9 17 Johnnic e-Ventures
12455 23 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 15 2 1 ARN Network
15706 15 2 5 Sudatel Internet Exchange Aut
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 720 712 Covad Communications
4323 685 485 Time Warner Communications, I
7018 1369 421 AT&T
6197 679 410 BellSouth Network Solutions,
7843 526 403 Adelphia Corp.
6198 576 380 BellSouth Network Solutions,
209 874 345 Qwest
27364 338 315 Armstrong Cable Services
4755 367 309 Videsh Sanchar Nigam Ltd. Aut
4355 398 293 EarthLink, Inc.
22909 312 293 Comcast Cable Corporation
5668 311 293 Century Telephone
1221 958 281 Telstra Pty Ltd
22773 302 281 Cox Communications, Inc. Atla
6347 349 270 SAVVIS Communications Corpora
4134 370 260 Data Communications Bureau
9583 271 260 Satyam Infoway Ltd.,
1239 921 256 Sprint
17676 280 249 XTAGE CORPORATION
376 359 245 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
192.119.135.0/24 270 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 /11:13 /12:57
/13:96 /14:272 /15:472 /16:7453 /17:1816 /18:3240
/19:8619 /20:9196 /21:6654 /22:9521 /23:10910 /24:71083
/25:178 /26:244 /27:166 /28:72 /29:23 /30:50
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 714 720 Covad Communications
6197 540 679 BellSouth Network Solutions,
7018 495 1369 AT&T
701 442 1435 UUNET Technologies, Inc.
6198 441 576 BellSouth Network Solutions,
702 417 697 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 361 400 Merit Network
20115 347 541 Charter Communications
27364 332 338 Armstrong Cable Services
1239 329 921 Sprint
3356 311 623 Level 3 Communications, LLC
209 307 874 Qwest
5668 277 311 Century Telephone
19029 261 410 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 220 398 EarthLink, Inc.
3320 218 276 Deutsche Telekom AG
6517 207 232 Yipes Communications, Inc.
14824 200 225 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:755 13:1 15:6 16:1 17:2
20:7 24:880 25:1 32:82 38:42 40:23
43:1 44:2 55:1 57:14 61:335 62:461
63:1841 64:1797 65:1791 66:2190 67:275 68:442
69:317 80:436 81:159 82:69 128:154 129:161
130:66 131:83 132:17 134:174 135:10 136:179
137:120 138:130 139:48 140:194 141:138 142:100
143:48 144:59 145:36 146:284 147:67 148:309
149:82 150:120 151:78 152:208 153:59 154:1
155:129 156:61 157:60 158:118 159:139 160:46
161:68 162:364 163:67 164:328 165:168 166:108
167:210 168:178 169:96 170:321 171:9 192:5437
193:2422 194:2036 195:1344 196:514 198:3620 199:2850
200:3041 201:3 202:4173 203:5371 204:2935 205:2006
206:2287 207:2622 208:2514 209:2810 210:971 211:397
212:915 213:957 214:17 215:25 216:3370 217:781
218:113 219:87 220:115 221:21 222:1
End of report
