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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 29 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 119113
Prefixes after maximum aggregation: 75493
Unique aggregates announced to Internet: 56577
Total ASes present in the Internet Routing Table: 14140
Origin-only ASes present in the Internet Routing Table: 12249
Origin ASes announcing only one prefix: 5531
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: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1184914525
Equivalent to 70 /8s, 160 /16s and 92 /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: 54169
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19315
Total APNIC prefixes after maximum aggregation: 11441
Prefixes being announced from the APNIC address blocks: 17820
Unique aggregates announced from the APNIC address blocks: 11192
APNIC Region origin ASes present in the Internet Routing Table: 1653
APNIC Region origin ASes announcing only one prefix: 527
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: 11
Number of APNIC addresses announced to Internet: 100834464
Equivalent to 6 /8s, 2 /16s and 156 /24s
Percentage of available APNIC address space announced: 66.3
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: 74738
Total ARIN prefixes after maximum aggregation: 46885
Prefixes being announced from the ARIN address blocks: 52172
Unique aggregates announced from the ARIN address blocks: 15696
ARIN Region origin ASes present in the Internet Routing Table: 7937
ARIN Region origin ASes announcing only one prefix: 2665
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: 183751648
Equivalent to 10 /8s, 243 /16s and 211 /24s
Percentage of available ARIN address space announced: 68.5
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: 20162
Total RIPE prefixes after maximum aggregation: 15074
Prefixes being announced from the RIPE address blocks: 16787
Unique aggregates announced from the RIPE address blocks: 11171
RIPE Region origin ASes present in the Internet Routing Table: 4169
RIPE Region origin ASes announcing only one prefix: 2259
RIPE Region transit ASes present in the Internet Routing Table: 769
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 120223168
Equivalent to 7 /8s, 42 /16s and 117 /24s
Percentage of available RIPE address space announced: 79.6
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
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: 4898
Total LACNIC prefixes after maximum aggregation: 2093
Prefixes being announced from the LACNIC address blocks: 4282
Unique aggregates announced from the LACNIC address blocks: 2760
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11744512
Equivalent to 0 /8s, 179 /16s and 53 /24s
Percentage of available LACNIC address space announced: 70.0
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 1171 1184 848 Telstra Pty Ltd
703 396 364 310 UUNET
2907 353 1751 332 SINET Japan
2764 341 341 309 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 308 280 203 Optus Communications Pty Ltd
4134 299 2361 102 Data Communications Bureau
4755 276 136 74 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
4766 236 1807 152 Korea Internet Exchange for "
17676 230 3570 27 XTAGE CORPORATION
9443 184 57 73 Primus Telecommunications
9583 176 33 12 Satyam Infoway Ltd.,
9768 136 385 74 Korea Telecom
4716 130 724 124 TTnet
9800 129 190 30 CHINA UNICOM
7657 126 25 91 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 118 11 67 UNINET-TH
4515 113 102 47 Star Internet Services Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 2408 1667 505 Supernet, Inc.
701 1744 9040 1246 UUNET Technologies, Inc.
7018 1401 7163 977 AT&T
1239 914 3172 658 Sprint
852 668 1147 466 Telus Advanced Communications
1 665 8090 437 GENUITY
7843 664 396 282 Adelphia Corp.
7046 587 862 285 UUNET Technologies, Inc.
4323 526 455 167 Time Warner Communications, I
209 522 2048 337 Qwest
690 506 74 319 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 444 236 202 BellSouth Network Solutions,
705 441 134 201 UUNET Technologies, Inc.
6198 415 177 198 BellSouth Network Solutions,
3561 411 2234 352 Cable & Wireless USA
3549 405 742 296 Global Crossing
4355 403 313 118 EarthLink, Inc.
18566 377 96 5 Covad Communications
2548 369 1019 232 Business Internet, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 820 2331 684 UUNET - Commercial IP service
3301 379 1163 334 TeliaNet Sweden
3215 309 789 172 France Telecom Transpac
3320 246 1964 223 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
719 190 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 173 1302 135 BTnet UK Regional network
5400 169 74 104 BT Ignite European Backbone
8708 154 41 147 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
20858 138 17 4 This AS will be used to conne
12302 124 18 31 MobiFon S.A.
3246 119 379 116 Song Networks
8220 119 174 111 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 269 114 57 ImpSat USA, Inc.
8151 211 331 112 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 167 88 34 Servicios Alestra S.A de C.V
6503 155 191 107 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 79 2 30 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 28 Integrated Systems
7984 66 12 42 Global One Colombia
8065 66 6 15 Empresas Publicas de Medellin
6147 65 57 23 Telefonica Del Peru
4926 63 4 51 Telintar S.A.
15034 57 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1744 498 UUNET Technologies, Inc.
7018 1401 424 AT&T
7843 664 382 Adelphia Corp.
18566 377 372 Covad Communications
4323 526 359 Time Warner Communications, I
1221 1171 323 Telstra Pty Ltd
7046 587 302 UUNET Technologies, Inc.
1580 312 299 ANOSCEUR
4151 353 295 USDA
6347 363 288 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
11492 270 259 Cable One
1239 914 256 Sprint
22927 275 255 TELEFONICA DE ARGENTINA
6197 444 242 BellSouth Network Solutions,
705 441 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 665 228 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
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
192.72.0.0/18 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 /14:236 /15:440 /16:7314 /17:1534 /18:2767
/19:7978 /20:7652 /21:5464 /22:8358 /23:10053 /24:66251
/25:142 /26:177 /27:87 /28:97 /29:71 /30:236
/31:19 /32:61
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 972 2408 Supernet, Inc.
701 508 1744 UUNET Technologies, Inc.
702 501 820 UUNET - Commercial IP service
7018 463 1401 AT&T
7843 456 664 Adelphia Corp.
690 455 506 Merit Network
7066 388 491 Virginia Polytechnic Institut
18566 370 377 Covad Communications
6197 334 444 BellSouth Network Solutions,
6198 333 415 BellSouth Network Solutions,
1239 306 914 Sprint
1580 298 312 ANOSCEUR
7046 278 587 UUNET Technologies, Inc.
22927 274 275 TELEFONICA DE ARGENTINA
11492 268 270 Cable One
6140 257 269 ImpSat USA, Inc.
3215 235 309 France Telecom Transpac
3301 226 379 TeliaNet Sweden
4355 223 403 EarthLink, Inc.
11537 220 226 University Corporation for Ad
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:610 13:10 15:4 17:3 20:5
24:851 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:397 62:403 63:1926 64:1296
65:1676 66:1226 67:190 68:181 69:23 80:313
81:77 128:119 129:169 130:19 131:67 132:9
133:2 134:157 135:7 136:493 137:109 138:217
139:81 140:153 141:92 142:89 143:45 144:148
145:18 146:251 147:240 148:269 149:76 150:43
151:86 152:289 153:36 154:7 155:100 156:106
157:55 158:110 159:156 160:21 161:72 162:139
163:88 164:255 165:138 166:94 167:295 168:372
169:56 170:272 171:6 192:5415 193:2381 194:2010
195:843 196:459 198:3705 199:3127 200:2629 202:3567
203:4849 204:3555 205:2417 206:2377 207:2526 208:2591
209:2632 210:614 211:279 212:880 213:795 214:12
215:20 216:3038 217:526 218:64 219:14 220:1
End of report
