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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118694
Prefixes after maximum aggregation: 75635
Unique aggregates announced to Internet: 56688
Total ASes present in the Internet Routing Table: 14209
Origin-only ASes present in the Internet Routing Table: 12318
Origin ASes announcing only one prefix: 5586
Transit ASes present in the Internet Routing Table: 1891
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 39
Number of addresses announced to Internet: 1186386221
Equivalent to 70 /8s, 182 /16s and 209 /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: 54490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19307
Total APNIC prefixes after maximum aggregation: 11448
Prefixes being announced from the APNIC address blocks: 17861
Unique aggregates announced from the APNIC address blocks: 11141
APNIC Region origin ASes present in the Internet Routing Table: 1651
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 290
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101212320
Equivalent to 6 /8s, 8 /16s and 96 /24s
Percentage of available APNIC address space announced: 66.6
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: 74165
Total ARIN prefixes after maximum aggregation: 46941
Prefixes being announced from the ARIN address blocks: 51658
Unique aggregates announced from the ARIN address blocks: 15819
ARIN Region origin ASes present in the Internet Routing Table: 7978
ARIN Region origin ASes announcing only one prefix: 2701
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184244720
Equivalent to 10 /8s, 251 /16s and 89 /24s
Percentage of available ARIN address space announced: 68.6
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: 20224
Total RIPE prefixes after maximum aggregation: 15137
Prefixes being announced from the RIPE address blocks: 16868
Unique aggregates announced from the RIPE address blocks: 11272
RIPE Region origin ASes present in the Internet Routing Table: 4200
RIPE Region origin ASes announcing only one prefix: 2282
RIPE Region transit ASes present in the Internet Routing Table: 772
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121293696
Equivalent to 7 /8s, 58 /16s and 203 /24s
Percentage of available RIPE address space announced: 80.3
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: 4993
Total LACNIC prefixes after maximum aggregation: 2109
Prefixes being announced from the LACNIC address blocks: 4335
Unique aggregates announced from the LACNIC address blocks: 2820
LACNIC Region origin ASes present in the Internet Routing Table: 321
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11600128
Equivalent to 0 /8s, 177 /16s and 1 /24s
Percentage of available LACNIC address space announced: 69.1
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 1151 1184 835 Telstra Pty Ltd
703 394 364 310 UUNET
2907 357 1768 335 SINET Japan
2764 341 341 310 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 307 280 205 Optus Communications Pty Ltd
4134 298 2376 99 Data Communications Bureau
4755 268 136 64 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 232 3602 27 XTAGE CORPORATION
4766 229 1807 152 Korea Internet Exchange for "
9583 187 33 12 Satyam Infoway Ltd.,
9443 185 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
9800 135 191 33 CHINA UNICOM
4716 129 723 123 TTnet
7657 127 26 90 The Internet Group Limited
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
4713 112 1059 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 1787 1667 506 Supernet, Inc.
701 1727 9056 1233 UUNET Technologies, Inc.
7018 1398 7133 982 AT&T
1239 935 3142 667 Sprint
1 665 8089 438 GENUITY
852 647 1145 463 Telus Advanced Communications
7843 645 398 282 Adelphia Corp.
7046 587 861 281 UUNET Technologies, Inc.
4323 525 455 167 Time Warner Communications, I
209 520 2049 336 Qwest
690 513 75 319 Merit Network
7066 481 204 257 Virginia Polytechnic Institut
6197 444 236 203 BellSouth Network Solutions,
705 434 134 194 UUNET Technologies, Inc.
6198 416 178 198 BellSouth Network Solutions,
18566 414 96 5 Covad Communications
3561 412 2248 353 Cable & Wireless USA
4355 404 313 118 EarthLink, Inc.
3549 403 741 295 Global Crossing
15290 389 213 173 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 807 2307 670 UUNET - Commercial IP service
3301 355 1177 313 TeliaNet Sweden
3215 309 804 169 France Telecom Transpac
3320 247 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 191 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 161 68 97 BT Ignite European Backbone
8708 147 42 140 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 138 1301 126 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 120 379 117 Song Networks
3269 110 752 62 TELECOM ITALIA
3233 103 10 15 RNC - Romanian Natioanal R&D
5511 103 193 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 314 107 68 ImpSat USA, Inc.
8151 208 332 114 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 171 87 34 Servicios Alestra S.A de C.V
6503 154 191 106 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 80 2 31 Red Universitaria Nacional
6147 78 59 21 Telefonica Del Peru
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 69 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 66 7 29 Integrated Systems
7984 65 12 41 Global One Colombia
4926 60 4 50 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 56 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1727 494 UUNET Technologies, Inc.
7018 1398 416 AT&T
18566 414 409 Covad Communications
7843 645 363 Adelphia Corp.
4323 525 358 Time Warner Communications, I
1221 1151 316 Telstra Pty Ltd
7046 587 306 UUNET Technologies, Inc.
1580 315 300 ANOSCEUR
4151 355 297 USDA
4355 404 286 EarthLink, Inc.
11492 276 275 Cable One
6347 351 274 SAVVIS Communications Corpora
1239 935 268 Sprint
22927 289 267 TELEFONICA DE ARGENTINA
6140 314 246 ImpSat USA, Inc.
6197 444 241 BellSouth Network Solutions,
705 434 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
4814 249 234 China Telecom (Group)
1 665 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
65535 PRIVATE 206.5.14.0/24 16631 Cogent Communication
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
160.213.122.0/23 25440 Nestle European Data Center
160.213.248.0/21 25440 Nestle European Data Center
164.233.0.0/16 6020 DISA NETWORK SERVICES
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
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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 /11:11 /12:46
/13:91 /14:238 /15:440 /16:7318 /17:1539 /18:2777
/19:7956 /20:7665 /21:5526 /22:8339 /23:9946 /24:65876
/25:141 /26:171 /27:91 /28:96 /29:70 /30:242
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 955 1787 Supernet, Inc.
701 503 1727 UUNET Technologies, Inc.
702 493 807 UUNET - Commercial IP service
690 462 513 Merit Network
7018 459 1398 AT&T
7843 432 645 Adelphia Corp.
18566 407 414 Covad Communications
7066 378 481 Virginia Polytechnic Institut
6197 334 444 BellSouth Network Solutions,
6198 334 416 BellSouth Network Solutions,
1239 323 935 Sprint
6140 301 314 ImpSat USA, Inc.
1580 300 315 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
7046 278 587 UUNET Technologies, Inc.
11492 273 276 Cable One
3215 236 309 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 224 404 EarthLink, Inc.
209 212 520 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:607 13:10 15:6 17:3 20:5
24:843 25:1 32:44 38:29 40:16 44:1
55:1 57:15 61:402 62:412 63:1921 64:1314
65:1683 66:1241 67:188 68:179 69:47 80:322
81:82 128:118 129:170 130:19 131:68 132:9
133:2 134:153 135:7 136:496 137:110 138:212
139:65 140:154 141:100 142:106 143:47 144:149
145:18 146:255 147:244 148:275 149:76 150:43
151:89 152:291 153:36 154:7 155:101 156:106
157:58 158:117 159:162 160:21 161:70 162:142
163:90 164:247 165:128 166:94 167:301 168:383
169:55 170:276 171:8 192:5425 193:2377 194:2016
195:875 196:451 198:3605 199:3073 200:2666 202:3577
203:4859 204:3295 205:2203 206:2352 207:2511 208:2585
209:2699 210:614 211:281 212:875 213:762 214:11
215:21 216:3076 217:532 218:66 219:14 220:4
End of report
