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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 13 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119604
Prefixes after maximum aggregation: 76378
Unique aggregates announced to Internet: 56652
Total ASes present in the Internet Routing Table: 14380
Origin-only ASes present in the Internet Routing Table: 12501
Origin ASes announcing only one prefix: 5640
Transit ASes present in the Internet Routing Table: 1879
Transit-only ASes present in the Internet Routing Table: 59
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 29
Number of addresses announced to Internet: 1192280601
Equivalent to 71 /8s, 16 /16s and 194 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55604
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19907
Total APNIC prefixes after maximum aggregation: 11842
Prefixes being announced from the APNIC address blocks: 18394
Unique aggregates announced from the APNIC address blocks: 11302
APNIC Region origin ASes present in the Internet Routing Table: 1704
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 285
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 103701664
Equivalent to 6 /8s, 46 /16s and 92 /24s
Percentage of available APNIC address space announced: 68.2
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: 74053
Total ARIN prefixes after maximum aggregation: 47114
Prefixes being announced from the ARIN address blocks: 51790
Unique aggregates announced from the ARIN address blocks: 15999
ARIN Region origin ASes present in the Internet Routing Table: 8052
ARIN Region origin ASes announcing only one prefix: 2731
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: 185338352
Equivalent to 11 /8s, 12 /16s and 9 /24s
Percentage of available ARIN address space announced: 69.0
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: 20513
Total RIPE prefixes after maximum aggregation: 15241
Prefixes being announced from the RIPE address blocks: 17101
Unique aggregates announced from the RIPE address blocks: 10725
RIPE Region origin ASes present in the Internet Routing Table: 4243
RIPE Region origin ASes announcing only one prefix: 2307
RIPE Region transit ASes present in the Internet Routing Table: 765
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 124364416
Equivalent to 7 /8s, 105 /16s and 166 /24s
Percentage of available RIPE address space announced: 82.4
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: 5128
Total LACNIC prefixes after maximum aggregation: 2181
Prefixes being announced from the LACNIC address blocks: 4471
Unique aggregates announced from the LACNIC address blocks: 2935
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 81
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: 17
Number of LACNIC addresses announced to Internet: 11817216
Equivalent to 0 /8s, 180 /16s and 81 /24s
Percentage of available LACNIC address space announced: 70.4
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 1130 1184 832 Telstra Pty Ltd
703 398 364 314 UUNET
2907 356 1767 333 SINET Japan
2764 339 341 308 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 315 281 205 Optus Communications Pty Ltd
4134 290 2408 90 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
4755 242 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 235 772 204 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 187 57 77 Primus Telecommunications
9800 166 204 43 CHINA UNICOM
7713 134 46 14 PT TELEKOMUNIKASI INDONESIA
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 87 The Internet Group Limited
9238 124 7 16 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1622 9047 1195 UUNET Technologies, Inc.
7018 1471 7267 986 AT&T
3908 1193 1635 503 Supernet, Inc.
1239 972 3145 680 Sprint
1 660 8076 433 GENUITY
7843 630 408 268 Adelphia Corp.
852 628 1140 445 Telus Advanced Communications
7046 552 841 261 UUNET Technologies, Inc.
4323 527 488 168 Time Warner Communications, I
209 520 2102 328 Qwest
690 513 75 319 Merit Network
7066 491 204 252 Virginia Polytechnic Institut
6197 458 561 104 BellSouth Network Solutions,
705 428 133 187 UUNET Technologies, Inc.
18566 422 96 5 Covad Communications
6198 420 182 196 BellSouth Network Solutions,
4355 405 313 117 EarthLink, Inc.
3549 402 709 296 Global Crossing
3561 392 2208 320 Cable & Wireless USA
15290 392 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 806 2290 669 UUNET - Commercial IP service
3301 342 1141 298 TeliaNet Sweden
3215 315 819 175 France Telecom Transpac
3320 257 1996 230 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 208 400 197 SWIPnet Swedish IP Network
719 201 306 130 LANLINK autonomous system
786 173 1873 173 The JANET IP Service
5400 161 70 98 BT Ignite European Backbone
8708 157 42 145 Romania Data Systems S.A.
20858 149 17 4 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 112 754 63 TELECOM ITALIA
5511 106 193 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 226 36 52 Telecom Argentina Stet-France
8151 208 332 113 UniNet S.A. de C.V.
11172 172 83 33 Servicios Alestra S.A de C.V
6503 154 191 106 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
11340 80 2 31 Red Universitaria Nacional
6147 77 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 37 Telefonica Empresas
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 31 Integrated Systems
4270 65 17 9 Red de Interconexion Universi
7984 62 11 40 Global One Colombia
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1193 690 Supernet, Inc.
7018 1471 485 AT&T
18566 422 417 Covad Communications
7843 630 362 Adelphia Corp.
4323 527 359 Time Warner Communications, I
6197 458 354 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1130 298 Telstra Pty Ltd
11492 294 293 Cable One
1239 972 292 Sprint
7046 552 291 UUNET Technologies, Inc.
4355 405 288 EarthLink, Inc.
6347 367 288 SAVVIS Communications Corpora
4151 328 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 428 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 660 227 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
65535 PRIVATE 202.57.188.0/24 7654 Siam Global Access C
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
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
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
192.72.0.0/18 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
192.156.164.0/24 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 /8:18 /9:3 /10:8 /11:12 /12:44
/13:91 /14:240 /15:441 /16:7339 /17:1558 /18:2822
/19:8019 /20:7786 /21:5616 /22:8527 /23:10253 /24:66138
/25:137 /26:171 /27:90 /28:80 /29:64 /30:107
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 761 1193 Supernet, Inc.
7018 506 1471 AT&T
702 494 806 UUNET - Commercial IP service
690 462 513 Merit Network
701 435 1622 UUNET Technologies, Inc.
18566 417 422 Covad Communications
7843 405 630 Adelphia Corp.
7066 390 491 Virginia Polytechnic Institut
1239 359 972 Sprint
6198 336 420 BellSouth Network Solutions,
6197 335 458 BellSouth Network Solutions,
6140 302 314 ImpSat USA, Inc.
1580 301 315 ANOSCEUR
11492 293 294 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 243 552 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 231 348 Charter Communications
7303 225 226 Telecom Argentina Stet-France
4355 224 405 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:626 13:1 15:6 17:3 20:7 24:788
25:1 32:43 38:36 40:18 44:1 55:1
57:15 61:422 62:443 63:1856 64:1363 65:1784
66:1361 67:199 68:223 69:43 80:321 81:80
128:123 129:184 130:23 131:70 132:9 133:4
134:154 135:6 136:489 137:110 138:209 139:84
140:184 141:102 142:95 143:44 144:149 145:18
146:253 147:250 148:277 149:77 150:43 151:90
152:291 153:37 154:7 155:103 156:47 157:60
158:120 159:139 160:24 161:64 162:145 163:84
164:261 165:136 166:82 167:302 168:390 169:57
170:289 171:8 178:1 192:5396 193:2386 194:2011
195:917 196:454 198:3583 199:3071 200:2780 202:3604
203:4927 204:3005 205:2114 206:2359 207:2405 208:2627
209:2668 210:668 211:320 212:897 213:743 214:12
215:22 216:3160 217:559 218:70 219:14 220:31
End of report
