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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118316
Prefixes after maximum aggregation: 75847
Unique aggregates announced to Internet: 56746
Total ASes present in the Internet Routing Table: 14274
Origin-only ASes present in the Internet Routing Table: 12390
Origin ASes announcing only one prefix: 5598
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 62
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: 8
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: 1186996382
Equivalent to 70 /8s, 192 /16s and 32 /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: 54531
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19523
Total APNIC prefixes after maximum aggregation: 11555
Prefixes being announced from the APNIC address blocks: 18062
Unique aggregates announced from the APNIC address blocks: 11205
APNIC Region origin ASes present in the Internet Routing Table: 1664
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 102418080
Equivalent to 6 /8s, 26 /16s and 198 /24s
Percentage of available APNIC address space announced: 67.4
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: 73371
Total ARIN prefixes after maximum aggregation: 46925
Prefixes being announced from the ARIN address blocks: 51302
Unique aggregates announced from the ARIN address blocks: 15693
ARIN Region origin ASes present in the Internet Routing Table: 8006
ARIN Region origin ASes announcing only one prefix: 2706
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: 184605168
Equivalent to 11 /8s, 0 /16s and 217 /24s
Percentage of available ARIN address space announced: 68.8
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
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: 20346
Total RIPE prefixes after maximum aggregation: 15185
Prefixes being announced from the RIPE address blocks: 16961
Unique aggregates announced from the RIPE address blocks: 11296
RIPE Region origin ASes present in the Internet Routing Table: 4223
RIPE Region origin ASes announcing only one prefix: 2290
RIPE Region transit ASes present in the Internet Routing Table: 768
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121670784
Equivalent to 7 /8s, 64 /16s and 140 /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: 5070
Total LACNIC prefixes after maximum aggregation: 2182
Prefixes being announced from the LACNIC address blocks: 4418
Unique aggregates announced from the LACNIC address blocks: 2854
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11707904
Equivalent to 0 /8s, 178 /16s and 166 /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 1139 1167 824 Telstra Pty Ltd
703 398 364 314 UUNET
2907 363 1786 339 SINET Japan
2764 341 341 310 connect.com.au pty ltd
17557 322 23 130 Pakistan Telecom
7474 311 281 205 Optus Communications Pty Ltd
4134 289 2408 91 Data Communications Bureau
4755 275 134 75 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 231 3618 24 XTAGE CORPORATION
4766 230 1802 154 Korea Internet Exchange for "
9583 192 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
3786 139 753 116 DACOM Corporation
4716 130 724 124 TTnet
9768 128 384 63 Korea Telecom
7657 124 26 87 The Internet Group Limited
4621 122 11 65 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1641 9037 1210 UUNET Technologies, Inc.
7018 1423 7680 954 AT&T
3908 1186 1635 497 Supernet, Inc.
1239 949 3151 681 Sprint
1 665 8107 438 GENUITY
7843 629 405 265 Adelphia Corp.
852 625 1140 444 Telus Advanced Communications
7046 581 861 279 UUNET Technologies, Inc.
4323 532 487 168 Time Warner Communications, I
209 519 2016 333 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 454 561 104 BellSouth Network Solutions,
705 424 133 189 UUNET Technologies, Inc.
6198 420 182 196 BellSouth Network Solutions,
3561 416 2228 347 Cable & Wireless USA
18566 414 96 5 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 399 709 292 Global Crossing
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2291 672 UUNET - Commercial IP service
3301 343 1142 300 TeliaNet Sweden
3215 313 819 174 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 156 42 147 Romania Data Systems S.A.
20858 148 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
5511 108 193 83 France Telecom
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 314 98 104 ImpSat USA, Inc.
7303 224 36 50 Telecom Argentina Stet-France
8151 208 331 113 UniNet S.A. de C.V.
11172 171 87 34 Servicios Alestra S.A de C.V
6503 156 191 109 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 83 2 34 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 57 5 33 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1186 689 Supernet, Inc.
7018 1423 469 AT&T
18566 414 409 Covad Communications
7843 629 364 Adelphia Corp.
4323 532 364 Time Warner Communications, I
6197 454 350 BellSouth Network Solutions,
1221 1139 315 Telstra Pty Ltd
1580 321 303 ANOSCEUR
7046 581 302 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
6347 361 282 SAVVIS Communications Corpora
11492 279 278 Cable One
1239 949 268 Sprint
4151 325 267 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 344 241 Reseau Interordinateurs Scien
705 424 235 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 665 227 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
65000 PRIVATE 203.21.203.0/24 1221 Telstra Pty Ltd
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
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 /14:238 /15:439 /16:7310 /17:1545 /18:2807
/19:7983 /20:7706 /21:5557 /22:8396 /23:10121 /24:65356
/25:138 /26:174 /27:91 /28:79 /29:58 /30:101
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 754 1186 Supernet, Inc.
702 496 808 UUNET - Commercial IP service
7018 485 1423 AT&T
690 462 513 Merit Network
701 446 1641 UUNET Technologies, Inc.
18566 409 414 Covad Communications
7843 408 629 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 336 420 BellSouth Network Solutions,
1239 333 949 Sprint
6197 331 454 BellSouth Network Solutions,
1580 306 321 ANOSCEUR
6140 302 314 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
11492 278 279 Cable One
7046 273 581 UUNET Technologies, Inc.
3215 239 313 France Telecom Transpac
4355 225 407 EarthLink, Inc.
7303 223 224 Telecom Argentina Stet-France
209 212 519 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:615 13:1 15:6 17:3 20:7 24:801
25:1 32:45 38:32 40:17 44:1 55:1
57:16 61:402 62:429 63:1870 64:1325 65:1697
66:1264 67:191 68:212 69:45 80:315 81:87
128:124 129:182 130:20 131:72 132:9 133:2
134:146 135:6 136:374 137:109 138:213 139:84
140:156 141:99 142:93 143:42 144:148 145:18
146:247 147:249 148:278 149:78 150:43 151:89
152:291 153:36 154:7 155:103 156:44 157:58
158:120 159:138 160:21 161:63 162:143 163:91
164:256 165:133 166:83 167:302 168:383 169:58
170:289 171:8 192:5427 193:2378 194:2013 195:898
196:455 198:3564 199:3062 200:2740 202:3602 203:4889
204:2999 205:2121 206:2330 207:2426 208:2587 209:2680
210:625 211:292 212:881 213:731 214:12 215:21
216:3103 217:537 218:68 219:14 220:10
End of report
