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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118101
Prefixes after maximum aggregation: 75709
Unique aggregates announced to Internet: 56607
Total ASes present in the Internet Routing Table: 14248
Origin-only ASes present in the Internet Routing Table: 12370
Origin ASes announcing only one prefix: 5604
Transit ASes present in the Internet Routing Table: 1878
Transit-only ASes present in the Internet Routing Table: 59
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: 4
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: 1186699309
Equivalent to 70 /8s, 187 /16s and 152 /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: 54467
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19359
Total APNIC prefixes after maximum aggregation: 11504
Prefixes being announced from the APNIC address blocks: 17920
Unique aggregates announced from the APNIC address blocks: 11203
APNIC Region origin ASes present in the Internet Routing Table: 1654
APNIC Region origin ASes announcing only one prefix: 525
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: 101441696
Equivalent to 6 /8s, 11 /16s and 224 /24s
Percentage of available APNIC address space announced: 66.7
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: 73364
Total ARIN prefixes after maximum aggregation: 46913
Prefixes being announced from the ARIN address blocks: 50930
Unique aggregates announced from the ARIN address blocks: 15645
ARIN Region origin ASes present in the Internet Routing Table: 7995
ARIN Region origin ASes announcing only one prefix: 2709
ARIN Region transit ASes present in the Internet Routing Table: 748
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184398576
Equivalent to 10 /8s, 253 /16s and 178 /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: 20365
Total RIPE prefixes after maximum aggregation: 15171
Prefixes being announced from the RIPE address blocks: 17016
Unique aggregates announced from the RIPE address blocks: 11283
RIPE Region origin ASes present in the Internet Routing Table: 4217
RIPE Region origin ASes announcing only one prefix: 2288
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121533056
Equivalent to 7 /8s, 62 /16s and 114 /24s
Percentage of available RIPE address space announced: 80.5
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
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: 5011
Total LACNIC prefixes after maximum aggregation: 2121
Prefixes being announced from the LACNIC address blocks: 4346
Unique aggregates announced from the LACNIC address blocks: 2821
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 82
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: 11
Number of LACNIC addresses announced to Internet: 11651328
Equivalent to 0 /8s, 177 /16s and 201 /24s
Percentage of available LACNIC address space announced: 69.4
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 1153 1184 835 Telstra Pty Ltd
703 394 363 310 UUNET
2907 363 1786 339 SINET Japan
2764 344 341 312 connect.com.au pty ltd
17557 315 23 124 Pakistan Telecom
7474 308 279 203 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4755 271 135 74 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
4766 232 1808 155 Korea Internet Exchange for "
17676 230 3602 27 XTAGE CORPORATION
9583 188 33 12 Satyam Infoway Ltd.,
9443 186 57 74 Primus Telecommunications
9800 143 193 40 CHINA UNICOM
9768 133 385 65 Korea Telecom
4716 129 723 123 TTnet
7657 128 26 91 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 114 11 63 UNINET-TH
3786 112 697 93 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1642 9022 1212 UUNET Technologies, Inc.
7018 1425 7726 954 AT&T
3908 1174 1666 503 Supernet, Inc.
1239 945 3144 673 Sprint
1 701 8091 442 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 604 404 261 Adelphia Corp.
7046 584 861 278 UUNET Technologies, Inc.
4323 530 471 167 Time Warner Communications, I
209 527 2048 340 Qwest
690 513 75 319 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
6197 457 589 92 BellSouth Network Solutions,
705 434 134 194 UUNET Technologies, Inc.
18566 420 96 5 Covad Communications
6198 418 181 197 BellSouth Network Solutions,
3561 412 2240 355 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 404 741 297 Global Crossing
15290 390 215 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2291 671 UUNET - Commercial IP service
3301 344 1144 301 TeliaNet Sweden
3215 307 804 169 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 214 783 174 Sonera Solution Autonomous Sy
1257 211 416 200 SWIPnet Swedish IP Network
719 199 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 153 42 146 Romania Data Systems S.A.
3303 146 517 145 Swisscom Ltd
20858 146 17 4 This AS will be used to conne
2856 131 1301 119 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
8517 106 48 3 ULAKNET-ASN
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 107 70 ImpSat USA, Inc.
8151 205 315 111 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 170 71 33 Servicios Alestra S.A de C.V
6503 157 207 109 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 107 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 77 58 24 Telefonica Del Peru
1916 73 306 43 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 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 1174 671 Supernet, Inc.
7018 1425 471 AT&T
18566 420 415 Covad Communications
6197 457 365 BellSouth Network Solutions,
4323 530 363 Time Warner Communications, I
7843 604 343 Adelphia Corp.
1221 1153 318 Telstra Pty Ltd
7046 584 306 UUNET Technologies, Inc.
1580 319 301 ANOSCEUR
4355 407 289 EarthLink, Inc.
6347 354 275 SAVVIS Communications Corpora
1239 945 272 Sprint
4151 326 268 USDA
22927 289 267 TELEFONICA DE ARGENTINA
1 701 259 GENUITY
6140 317 247 ImpSat USA, Inc.
11492 276 245 Cable One
705 434 240 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 490 233 Virginia Polytechnic Institut
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
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
158.0.0.0/13 568 DISO-UNRRA
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
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 /16:7308 /17:1548 /18:2788
/19:7975 /20:7670 /21:5526 /22:8342 /23:9896 /24:65298
/25:137 /26:178 /27:96 /28:95 /29:69 /30:235
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 743 1174 Supernet, Inc.
702 497 808 UUNET - Commercial IP service
7018 483 1425 AT&T
690 462 513 Merit Network
701 437 1642 UUNET Technologies, Inc.
18566 414 420 Covad Communications
7066 387 490 Virginia Polytechnic Institut
7843 383 604 Adelphia Corp.
6198 334 418 BellSouth Network Solutions,
6197 333 457 BellSouth Network Solutions,
1239 328 945 Sprint
6140 305 317 ImpSat USA, Inc.
1580 304 319 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
7046 278 584 UUNET Technologies, Inc.
11492 276 276 Cable One
3215 233 307 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 225 407 EarthLink, Inc.
209 214 527 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:607 13:10 15:6 17:3 20:5
24:799 25:1 32:45 38:31 40:16 44:1
55:1 57:15 61:398 62:415 63:1862 64:1315
65:1697 66:1248 67:187 68:180 69:45 80:323
81:79 128:119 129:184 130:20 131:69 132:9
133:2 134:148 135:6 136:498 137:110 138:213
139:68 140:156 141:99 142:92 143:43 144:149
145:18 146:250 147:248 148:276 149:77 150:43
151:89 152:291 153:36 154:7 155:103 156:43
157:57 158:118 159:138 160:21 161:71 162:133
163:89 164:262 165:131 166:102 167:302 168:387
169:57 170:282 171:8 178:1 192:5419 193:2425
194:2063 195:890 196:452 198:3577 199:3062 200:2668
202:3584 203:4874 204:2975 205:2096 206:2345 207:2426
208:2583 209:2658 210:636 211:284 212:869 213:759
214:11 215:21 216:3081 217:541 218:66 219:14
220:4
End of report
