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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 30 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130752
Prefixes after maximum aggregation: 80576
Unique aggregates announced to Internet: 62643
Total ASes present in the Internet Routing Table: 16235
Origin-only ASes present in the Internet Routing Table: 14082
Origin ASes announcing only one prefix: 6461
Transit ASes present in the Internet Routing Table: 2153
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 15
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1265160676
Equivalent to 75 /8s, 104 /16s and 209 /24s
Percentage of available address space announced: 34.1
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57750
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23858
Total APNIC prefixes after maximum aggregation: 12962
Prefixes being announced from the APNIC address blocks: 22279
Unique aggregates announced from the APNIC address blocks: 12621
APNIC Region origin ASes present in the Internet Routing Table: 1948
APNIC Region origin ASes announcing only one prefix: 576
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131112192
Equivalent to 7 /8s, 208 /16s and 157 /24s
Percentage of available APNIC address space announced: 70.6
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: 77165
Total ARIN prefixes after maximum aggregation: 47843
Prefixes being announced from the ARIN address blocks: 59838
Unique aggregates announced from the ARIN address blocks: 20714
ARIN Region origin ASes present in the Internet Routing Table: 8769
ARIN Region origin ASes announcing only one prefix: 3065
ARIN Region transit ASes present in the Internet Routing Table: 834
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 210598816
Equivalent to 12 /8s, 141 /16s and 123 /24s
Percentage of available ARIN address space announced: 73.8
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: 23025
Total RIPE prefixes after maximum aggregation: 16860
Prefixes being announced from the RIPE address blocks: 19864
Unique aggregates announced from the RIPE address blocks: 13261
RIPE Region origin ASes present in the Internet Routing Table: 4993
RIPE Region origin ASes announcing only one prefix: 2685
RIPE Region transit ASes present in the Internet Routing Table: 887
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 142715008
Equivalent to 8 /8s, 129 /16s and 168 /24s
Percentage of available RIPE address space announced: 65.4
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5572
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 5074
Unique aggregates announced from the LACNIC address blocks: 3078
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13540864
Equivalent to 0 /8s, 206 /16s and 158 /24s
Percentage of available LACNIC address space announced: 40.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1118
Total AfriNIC prefixes after maximum aggregation: 702
Prefixes being announced from the AfriNIC address blocks: 721
Unique aggregates announced from the AfriNIC address blocks: 554
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1751040
Equivalent to 0 /8s, 26 /16s and 184 /24s
Percentage of available AfriNIC address space announced: 10.4
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 960 1119 680 Telstra Pty Ltd
4134 476 2448 112 Data Communications Bureau
2907 369 1863 345 SINET Japan
4755 345 131 56 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 321 356 254 UUNET
17557 301 21 154 Pakistan Telecom
17676 283 4188 33 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
9583 267 44 11 Satyam Infoway Ltd.,
4766 264 2896 191 Korea Internet Exchange for "
7474 261 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9929 217 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 205 68 118 COMindico Australia
9498 174 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 143 60 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1429 8667 985 UUNET Technologies, Inc.
7018 1390 7003 955 AT&T
1239 948 3092 665 Sprint
209 848 3449 535 Qwest
6197 765 438 214 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 711 10891 564 Level 3 Communications, LLC
4323 675 608 203 Time Warner Communications, I
6198 613 374 226 BellSouth Network Solutions,
20115 572 316 328 Charter Communications
7843 524 502 123 Adelphia Corp.
852 519 1123 408 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 446 7309 312 Southwestern Bell Internet Se
19029 424 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 386 196 241 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
702 685 2091 568 UUNET - Commercial IP service
3301 303 1154 287 TeliaNet Sweden
3320 278 1988 231 Deutsche Telekom AG
8220 258 420 247 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2038 228 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 186 440 184 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 174 175 140 BT Ignite European Backbone
3215 161 742 81 France Telecom Transpac
8708 161 111 157 Romania Data Systems S.A.
25186 161 181 112 France Telecom Transpac's Tra
3303 143 541 137 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 120 943 65 TELECOM ITALIA
2856 118 1294 109 BTnet UK Regional network
6746 107 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 120 66 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 183 43 24 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
6147 126 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 83 24 29 Integrated Systems
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
8065 75 10 19 Empresas Publicas de Medellin
4270 70 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL 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 250 632 219 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
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
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 16 2 1 ARN Network
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 729 721 Covad Communications
6197 765 551 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1390 435 AT&T
7843 524 401 Adelphia Corp.
6198 613 387 BellSouth Network Solutions,
4134 476 364 Data Communications Bureau
27364 354 330 Armstrong Cable Services
209 848 313 Qwest
22909 317 306 Comcast Cable Corporation
5668 312 293 Century Telephone
4355 390 289 EarthLink, Inc.
4755 345 289 Videsh Sanchar Nigam Ltd. Aut
22773 312 285 Cox Communications, Inc. Atla
1239 948 283 Sprint
1221 960 280 Telstra Pty Ltd
6140 344 278 ImpSat
9583 267 256 Satyam Infoway Ltd.,
9443 336 255 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64610 PRIVATE 211.136.18.192/27 9808 Guangdong Mobile Com
64600 PRIVATE 211.136.24.0/21 9808 Guangdong Mobile Com
64600 PRIVATE 211.136.32.0/19 9808 Guangdong Mobile Com
64600 PRIVATE 211.136.64.0/19 9808 Guangdong Mobile Com
64650 PRIVATE 211.137.112.0/20 9808 Guangdong Mobile Com
64650 PRIVATE 211.137.130.0/23 9808 Guangdong Mobile Com
64650 PRIVATE 211.137.132.0/22 9808 Guangdong Mobile Com
64650 PRIVATE 211.137.136.0/21 9808 Guangdong Mobile Com
64710 PRIVATE 211.138.96.0/20 17883 asn for Shanxi Provi
64710 PRIVATE 211.142.0.0/18 17883 asn for Shanxi Provi
64710 PRIVATE 211.142.64.0/19 17883 asn for Shanxi Provi
64600 PRIVATE 218.243.248.0/22 9808 Guangdong Mobile Com
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 /11:14 /12:57
/13:99 /14:276 /15:483 /16:7503 /17:1822 /18:3332
/19:8696 /20:9238 /21:6659 /22:9375 /23:10944 /24:71469
/25:182 /26:232 /27:158 /28:72 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 619 765 BellSouth Network Solutions,
7018 518 1390 AT&T
6198 474 613 BellSouth Network Solutions,
701 436 1429 UUNET Technologies, Inc.
702 413 685 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
3356 363 711 Level 3 Communications, LLC
690 361 400 Merit Network
20115 357 572 Charter Communications
27364 348 354 Armstrong Cable Services
1239 331 948 Sprint
209 284 848 Qwest
5668 278 312 Century Telephone
19029 274 424 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 220 278 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 216 241 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:758 13:1 15:6 16:1 17:3
20:7 24:869 32:82 38:44 40:23 43:1
44:2 55:1 56:1 57:12 61:348 62:449
63:1829 64:1814 65:1802 66:2230 67:279 68:635
69:342 80:444 81:167 82:37 128:154 129:258
130:68 131:81 132:17 134:183 135:16 136:183
137:104 138:119 139:46 140:169 141:140 142:110
143:47 144:63 145:41 146:285 147:71 148:314
149:86 150:118 151:60 152:208 153:55 154:1
155:128 156:60 157:61 158:137 159:136 160:46
161:48 162:363 163:74 164:349 165:171 166:104
167:212 168:179 169:94 170:310 171:9 192:5478
193:2449 194:2007 195:1293 196:514 198:3634 199:2835
200:3034 201:3 202:4211 203:5338 204:2950 205:2029
206:2279 207:2628 208:2477 209:2816 210:963 211:420
212:894 213:962 214:23 215:24 216:3421 217:778
218:119 219:87 220:120 221:16
End of report
