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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 23 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118412
Prefixes after maximum aggregation: 75751
Unique aggregates announced to Internet: 56793
Total ASes present in the Internet Routing Table: 14259
Origin-only ASes present in the Internet Routing Table: 12363
Origin ASes announcing only one prefix: 5596
Transit ASes present in the Internet Routing Table: 1896
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 10
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 33
Number of addresses announced to Internet: 1186528345
Equivalent to 70 /8s, 184 /16s and 252 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54622
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19454
Total APNIC prefixes after maximum aggregation: 11532
Prefixes being announced from the APNIC address blocks: 17985
Unique aggregates announced from the APNIC address blocks: 11200
APNIC Region origin ASes present in the Internet Routing Table: 1661
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101735072
Equivalent to 6 /8s, 16 /16s and 90 /24s
Percentage of available APNIC address space announced: 66.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73540
Total ARIN prefixes after maximum aggregation: 46858
Prefixes being announced from the ARIN address blocks: 51382
Unique aggregates announced from the ARIN address blocks: 15800
ARIN Region origin ASes present in the Internet Routing Table: 8006
ARIN Region origin ASes announcing only one prefix: 2704
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184492016
Equivalent to 10 /8s, 255 /16s and 31 /24s
Percentage of available ARIN address space announced: 68.7
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20353
Total RIPE prefixes after maximum aggregation: 15185
Prefixes being announced from the RIPE address blocks: 16978
Unique aggregates announced from the RIPE address blocks: 11304
RIPE Region origin ASes present in the Internet Routing Table: 4214
RIPE Region origin ASes announcing only one prefix: 2282
RIPE Region transit ASes present in the Internet Routing Table: 775
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121686400
Equivalent to 7 /8s, 64 /16s and 201 /24s
Percentage of available RIPE address space announced: 80.6
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
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5058
Total LACNIC prefixes after maximum aggregation: 2176
Prefixes being announced from the LACNIC address blocks: 4398
Unique aggregates announced from the LACNIC address blocks: 2836
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11705600
Equivalent to 0 /8s, 178 /16s and 157 /24s
Percentage of available LACNIC address space announced: 69.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1141 1183 824 Telstra Pty Ltd
703 399 365 315 UUNET
2907 356 1768 334 SINET Japan
2764 341 341 309 connect.com.au pty ltd
17557 319 23 125 Pakistan Telecom
7474 310 281 205 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4755 265 135 74 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
4766 233 1808 161 Korea Internet Exchange for "
17676 230 3602 27 XTAGE CORPORATION
9583 192 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 156 198 47 CHINA UNICOM
7657 129 26 92 The Internet Group Limited
4716 128 708 122 TTnet
9768 128 384 63 Korea Telecom
4621 120 11 65 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
3786 118 746 97 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1643 9037 1212 UUNET Technologies, Inc.
7018 1423 7665 952 AT&T
3908 1180 1634 496 Supernet, Inc.
1239 953 3151 681 Sprint
1 666 8107 438 GENUITY
7843 630 406 258 Adelphia Corp.
852 625 1140 444 Telus Advanced Communications
7046 578 861 278 UUNET Technologies, Inc.
4323 531 471 167 Time Warner Communications, I
209 524 2048 337 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 454 561 104 BellSouth Network Solutions,
705 423 133 188 UUNET Technologies, Inc.
6198 420 182 196 BellSouth Network Solutions,
3561 415 2244 346 Cable & Wireless USA
18566 415 93 15 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 401 741 294 Global Crossing
15290 392 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2291 672 UUNET - Commercial IP service
3301 344 1144 300 TeliaNet Sweden
3215 312 803 173 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 212 416 201 SWIPnet Swedish IP Network
719 199 306 129 LANLINK autonomous system
786 175 1873 175 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 153 42 146 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 130 1300 118 BTnet UK Regional network
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
8517 106 48 3 ULAKNET-ASN
5511 105 193 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 315 98 104 ImpSat USA, Inc.
7303 224 36 50 Telecom Argentina Stet-France
8151 207 331 113 UniNet S.A. de C.V.
11172 171 87 34 Servicios Alestra S.A de C.V
6503 157 191 110 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 108 7 13 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 76 58 24 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 72 5 16 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 63 11 40 Global One Colombia
4926 59 4 49 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 56 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1180 684 Supernet, Inc.
7018 1423 471 AT&T
18566 415 400 Covad Communications
7843 630 372 Adelphia Corp.
4323 531 364 Time Warner Communications, I
6197 454 350 BellSouth Network Solutions,
1221 1141 317 Telstra Pty Ltd
1580 316 302 ANOSCEUR
7046 578 300 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
6347 361 282 SAVVIS Communications Corpora
11492 279 278 Cable One
1239 953 272 Sprint
22927 289 267 TELEFONICA DE ARGENTINA
4151 317 259 USDA
376 343 240 Reseau Interordinateurs Scien
705 423 235 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 666 228 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
65500 PRIVATE 167.165.0.0/17 22335 Metropolitan Researc
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64640 PRIVATE 207.99.70.0/24 8001 Net Access Corporati
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:12 /12:46
/13:92 /14:237 /15:438 /16:7311 /17:1541 /18:2797
/19:7977 /20:7700 /21:5568 /22:8401 /23:10081 /24:65507
/25:138 /26:178 /27:95 /28:77 /29:52 /30:99
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 751 1180 Supernet, Inc.
702 497 809 UUNET - Commercial IP service
7018 486 1423 AT&T
690 462 513 Merit Network
701 447 1643 UUNET Technologies, Inc.
18566 412 415 Covad Communications
7843 409 630 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 336 420 BellSouth Network Solutions,
1239 332 953 Sprint
6197 331 454 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 301 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 278 279 Cable One
7046 271 578 UUNET Technologies, Inc.
3215 239 312 France Telecom Transpac
4355 225 407 EarthLink, Inc.
7303 223 224 Telecom Argentina Stet-France
209 212 524 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:610 13:1 15:6 17:3 20:7 24:800
25:1 32:45 38:32 40:17 44:1 55:1
57:16 61:402 62:416 63:1866 64:1326 65:1690
66:1267 67:190 68:211 69:45 80:317 81:78
128:123 129:182 130:20 131:72 132:9 133:3
134:146 135:6 136:492 137:109 138:211 139:84
140:156 141:99 142:93 143:44 144:148 145:18
146:247 147:249 148:277 149:78 150:43 151:89
152:291 153:36 154:7 155:103 156:44 157:58
158:120 159:138 160:21 161:63 162:133 163:90
164:257 165:134 166:83 167:300 168:384 169:55
170:289 171:8 192:5418 193:2416 194:2064 195:892
196:455 198:3569 199:3057 200:2722 202:3629 203:4874
204:3000 205:2117 206:2351 207:2444 208:2583 209:2686
210:639 211:284 212:873 213:719 214:12 215:21
216:3097 217:536 218:67 219:14 220:8
End of report
