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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 15 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122203
Prefixes after maximum aggregation: 77852
Unique aggregates announced to Internet: 59139
Total ASes present in the Internet Routing Table: 14795
Origin-only ASes present in the Internet Routing Table: 12840
Origin ASes announcing only one prefix: 5803
Transit ASes present in the Internet Routing Table: 1955
Transit-only ASes present in the Internet Routing Table: 64
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 19
Number of addresses announced to Internet: 1199306117
Equivalent to 71 /8s, 123 /16s and 245 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57248
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20730
Total APNIC prefixes after maximum aggregation: 12186
Prefixes being announced from the APNIC address blocks: 19179
Unique aggregates announced from the APNIC address blocks: 11702
APNIC Region origin ASes present in the Internet Routing Table: 1751
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 106550944
Equivalent to 6 /8s, 89 /16s and 214 /24s
Percentage of available APNIC address space announced: 56.5
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75029
Total ARIN prefixes after maximum aggregation: 47893
Prefixes being announced from the ARIN address blocks: 53522
Unique aggregates announced from the ARIN address blocks: 16841
ARIN Region origin ASes present in the Internet Routing Table: 8217
ARIN Region origin ASes announcing only one prefix: 2775
ARIN Region transit ASes present in the Internet Routing Table: 784
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187519168
Equivalent to 11 /8s, 45 /16s and 80 /24s
Percentage of available ARIN address space announced: 69.9
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: 21251
Total RIPE prefixes after maximum aggregation: 15594
Prefixes being announced from the RIPE address blocks: 17750
Unique aggregates announced from the RIPE address blocks: 11853
RIPE Region origin ASes present in the Internet Routing Table: 4435
RIPE Region origin ASes announcing only one prefix: 2422
RIPE Region transit ASes present in the Internet Routing Table: 805
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127921152
Equivalent to 7 /8s, 159 /16s and 236 /24s
Percentage of available RIPE address space announced: 76.2
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5183
Total LACNIC prefixes after maximum aggregation: 2179
Prefixes being announced from the LACNIC address blocks: 4629
Unique aggregates announced from the LACNIC address blocks: 3040
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12343808
Equivalent to 0 /8s, 188 /16s and 90 /24s
Percentage of available LACNIC address space announced: 73.6
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 1097 1106 801 Telstra Pty Ltd
703 404 370 313 UUNET
2907 387 1959 366 SINET Japan
17557 367 26 141 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 306 275 207 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 249 772 211 DACOM Corporation
4755 231 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 223 3430 38 XTAGE CORPORATION
9583 217 33 13 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 57 77 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4716 128 733 122 TTnet
4739 128 57 116 Commerical Internet eXchange
7539 128 164 121 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1574 8856 1130 UUNET Technologies, Inc.
7018 1374 7149 954 AT&T
3908 1263 1590 490 Supernet, Inc.
1239 981 3153 695 Sprint
1 663 8088 432 GENUITY
7843 603 413 190 Adelphia Corp.
4323 556 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
209 533 2092 341 Qwest
18566 518 119 10 Covad Communications
690 503 73 313 Merit Network
3561 493 2303 339 Cable & Wireless USA
6197 493 559 115 BellSouth Network Solutions,
7066 490 204 254 Virginia Polytechnic Institut
2386 480 479 242 AT&T Data Communications Serv
705 452 166 198 UUNET Technologies, Inc.
6198 450 197 196 BellSouth Network Solutions,
3549 406 695 309 Global Crossing
20115 395 167 264 Charter Communications
4355 391 306 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 786 2234 650 UUNET - Commercial IP service
3301 315 1143 305 TeliaNet Sweden
3215 307 818 172 France Telecom Transpac
3320 266 1996 229 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
5400 219 78 102 BT Ignite European Backbone
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 128 182 119 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 110 750 60 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 100 670 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 292 98 105 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 215 341 117 UniNet S.A. de C.V.
11172 161 66 33 Servicios Alestra S.A de C.V
6503 158 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
11992 74 8 35 Integrated Systems
1916 73 306 43 Fundacao de Amparo a Pesquisa
8065 73 6 18 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
15034 60 5 32 TIBA SA
11830 59 4 18 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1263 773 Supernet, Inc.
18566 518 508 Covad Communications
7018 1374 420 AT&T
7843 603 413 Adelphia Corp.
4323 556 384 Time Warner Communications, I
6197 493 378 BellSouth Network Solutions,
11492 321 317 Cable One
1221 1097 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 981 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 391 279 EarthLink, Inc.
705 452 254 UUNET Technologies, Inc.
6198 450 254 BellSouth Network Solutions,
4814 264 249 China Telecom (Group)
27364 258 240 Armstrong Cable Services
2386 480 238 AT&T Data Communications Serv
7066 490 236 Virginia Polytechnic Institut
4151 293 233 USDA
1 663 231 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
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
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
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
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 /11:13 /12:46
/13:89 /14:238 /15:448 /16:7326 /17:1607 /18:2906
/19:8235 /20:8166 /21:5855 /22:8865 /23:10611 /24:67147
/25:131 /26:150 /27:86 /28:84 /29:59 /30:56
/31:4 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 832 1263 Supernet, Inc.
18566 513 518 Covad Communications
702 489 786 UUNET - Commercial IP service
7018 478 1374 AT&T
690 452 503 Merit Network
701 452 1574 UUNET Technologies, Inc.
7066 389 490 Virginia Polytechnic Institut
1239 368 981 Sprint
6197 362 493 BellSouth Network Solutions,
7843 361 603 Adelphia Corp.
6198 359 450 BellSouth Network Solutions,
11492 320 321 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 280 480 AT&T Data Communications Serv
6140 279 292 ImpSat
20115 271 395 Charter Communications
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 232 307 France Telecom Transpac
209 221 533 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:657 13:1 15:4 17:2 20:10 24:911
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:15 61:454 62:498 63:1931 64:1441
65:1918 66:1554 67:219 68:293 69:56 80:333
81:98 128:98 129:224 130:42 131:82 132:11
133:11 134:144 135:4 136:29 137:116 138:106
139:65 140:145 141:124 142:95 143:47 144:93
145:18 146:258 147:86 148:271 149:73 150:43
151:113 152:253 153:51 154:2 155:108 156:43
157:39 158:123 159:139 160:35 161:60 162:126
163:85 164:304 165:136 166:74 167:319 168:392
169:55 170:309 171:9 192:5300 193:2388 194:2001
195:984 196:476 198:3607 199:2985 200:2888 202:3670
203:5094 204:3073 205:2028 206:2402 207:2420 208:2675
209:2801 210:740 211:331 212:956 213:776 214:21
215:21 216:3233 217:605 218:83 219:9 220:52
End of report
