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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 22 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118137
Prefixes after maximum aggregation: 75669
Unique aggregates announced to Internet: 56662
Total ASes present in the Internet Routing Table: 14260
Origin-only ASes present in the Internet Routing Table: 12366
Origin ASes announcing only one prefix: 5597
Transit ASes present in the Internet Routing Table: 1894
Transit-only ASes present in the Internet Routing Table: 61
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1185812249
Equivalent to 70 /8s, 174 /16s and 15 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54487
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19368
Total APNIC prefixes after maximum aggregation: 11484
Prefixes being announced from the APNIC address blocks: 17914
Unique aggregates announced from the APNIC address blocks: 11170
APNIC Region origin ASes present in the Internet Routing Table: 1656
APNIC Region origin ASes announcing only one prefix: 528
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: 101665440
Equivalent to 6 /8s, 15 /16s and 74 /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: 73388
Total ARIN prefixes after maximum aggregation: 46851
Prefixes being announced from the ARIN address blocks: 51212
Unique aggregates announced from the ARIN address blocks: 15749
ARIN Region origin ASes present in the Internet Routing Table: 8005
ARIN Region origin ASes announcing only one prefix: 2702
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184485360
Equivalent to 10 /8s, 255 /16s and 5 /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: 20328
Total RIPE prefixes after maximum aggregation: 15165
Prefixes being announced from the RIPE address blocks: 16949
Unique aggregates announced from the RIPE address blocks: 11272
RIPE Region origin ASes present in the Internet Routing Table: 4217
RIPE Region origin ASes announcing only one prefix: 2286
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: 121639552
Equivalent to 7 /8s, 64 /16s and 18 /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: 5047
Total LACNIC prefixes after maximum aggregation: 2169
Prefixes being announced from the LACNIC address blocks: 4387
Unique aggregates announced from the LACNIC address blocks: 2830
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11703296
Equivalent to 0 /8s, 178 /16s and 148 /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
703 398 364 314 UUNET
2907 353 1720 334 SINET Japan
2764 341 341 309 connect.com.au pty ltd
17557 315 23 124 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 193 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 155 197 47 CHINA UNICOM
4716 129 724 123 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
7657 116 21 86 The Internet Group Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1650 9037 1216 UUNET Technologies, Inc.
7018 1422 7665 953 AT&T
3908 1180 1635 497 Supernet, Inc.
1239 953 3151 681 Sprint
1 665 8091 439 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
209 525 2048 338 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,
18566 415 93 15 Covad Communications
3561 409 2236 351 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 398 741 291 Global Crossing
15290 393 215 177 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
786 176 1873 176 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
3233 100 10 8 RNC - Romanian Natioanal R&D
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 147 190 105 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 69 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 683 Supernet, Inc.
7018 1422 469 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 318 260 USDA
376 344 241 Reseau Interordinateurs Scien
705 423 235 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 665 226 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
1877 UNALLOCATED 192.108.199.0/24 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
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 /16:7302 /17:1541 /18:2797
/19:7971 /20:7691 /21:5533 /22:8353 /23:10054 /24:65366
/25:137 /26:178 /27:96 /28:76 /29:52 /30:100
/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 485 1422 AT&T
690 462 513 Merit Network
701 447 1650 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
209 213 525 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:609 13:1 15:6 17:3 20:7 24:800
25:1 32:45 38:31 40:17 44:1 55:1
57:16 61:402 62:417 63:1866 64:1316 65:1693
66:1262 67:190 68:211 69:45 80:315 81:79
128:123 129:182 130:20 131:72 132:9 133:3
134:146 135:6 136:492 137:109 138:211 139:84
140:156 141:99 142:92 143:44 144:148 145:18
146:244 147:249 148:277 149:78 150:43 151:89
152:291 153:36 154:7 155:103 156:43 157:58
158:120 159:138 160:21 161:63 162:133 163:91
164:257 165:134 166:83 167:302 168:384 169:57
170:291 171:8 178:1 192:5425 193:2408 194:2057
195:888 196:455 198:3573 199:3053 200:2713 202:3600
203:4862 204:2989 205:2114 206:2327 207:2425 208:2585
209:2681 210:627 211:288 212:877 213:720 214:12
215:21 216:3097 217:532 218:66 219:14 220:8
End of report
