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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 02 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119776
Prefixes after maximum aggregation: 76720
Unique aggregates announced to Internet: 57884
Total ASes present in the Internet Routing Table: 14519
Origin-only ASes present in the Internet Routing Table: 12610
Origin ASes announcing only one prefix: 5688
Transit ASes present in the Internet Routing Table: 1909
Transit-only ASes present in the Internet Routing Table: 71
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 24
Number of addresses announced to Internet: 1191751117
Equivalent to 71 /8s, 8 /16s and 173 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55670
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20291
Total APNIC prefixes after maximum aggregation: 11979
Prefixes being announced from the APNIC address blocks: 18796
Unique aggregates announced from the APNIC address blocks: 11501
APNIC Region origin ASes present in the Internet Routing Table: 1720
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 104893600
Equivalent to 6 /8s, 64 /16s and 140 /24s
Percentage of available APNIC address space announced: 69.0
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: 73655
Total ARIN prefixes after maximum aggregation: 47238
Prefixes being announced from the ARIN address blocks: 52146
Unique aggregates announced from the ARIN address blocks: 16179
ARIN Region origin ASes present in the Internet Routing Table: 8081
ARIN Region origin ASes announcing only one prefix: 2724
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186348608
Equivalent to 11 /8s, 27 /16s and 116 /24s
Percentage of available ARIN address space announced: 69.4
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: 20672
Total RIPE prefixes after maximum aggregation: 15325
Prefixes being announced from the RIPE address blocks: 17294
Unique aggregates announced from the RIPE address blocks: 11565
RIPE Region origin ASes present in the Internet Routing Table: 4320
RIPE Region origin ASes announcing only one prefix: 2362
RIPE Region transit ASes present in the Internet Routing Table: 784
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122973632
Equivalent to 7 /8s, 84 /16s and 109 /24s
Percentage of available RIPE address space announced: 73.3
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: 5148
Total LACNIC prefixes after maximum aggregation: 2178
Prefixes being announced from the LACNIC address blocks: 4491
Unique aggregates announced from the LACNIC address blocks: 2965
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 83
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: 10
Number of LACNIC addresses announced to Internet: 11947776
Equivalent to 0 /8s, 182 /16s and 79 /24s
Percentage of available LACNIC address space announced: 71.2
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 824 Telstra Pty Ltd
703 408 368 320 UUNET
2907 389 1975 365 SINET Japan
2764 333 340 303 connect.com.au pty ltd
17557 328 24 130 Pakistan Telecom
4134 301 2525 100 Data Communications Bureau
7474 301 276 211 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 242 134 74 Videsh Sanchar Nigam Ltd. Aut
3786 240 773 206 DACOM Corporation
17676 222 3445 24 XTAGE CORPORATION
9583 205 33 13 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 13 World Net & Services Co., Ltd
9238 130 8 18 TATA ISP
9768 130 384 64 Korea Telecom
4716 128 721 122 TTnet
4739 123 57 112 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1599 8951 1177 UUNET Technologies, Inc.
7018 1430 7108 968 AT&T
3908 1193 1604 502 Supernet, Inc.
1239 960 3143 673 Sprint
852 682 1124 447 Telus Advanced Communications
1 668 8092 434 GENUITY
7843 588 400 229 Adelphia Corp.
7046 544 825 249 UUNET Technologies, Inc.
4323 530 472 168 Time Warner Communications, I
209 526 2103 335 Qwest
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 472 555 110 BellSouth Network Solutions,
705 455 151 205 UUNET Technologies, Inc.
18566 452 114 7 Covad Communications
2386 437 469 230 AT&T Data Communications Serv
6198 423 185 199 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
15290 394 215 177 AT&T Canada IES
3549 392 707 291 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 801 2300 665 UUNET - Commercial IP service
3215 311 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 264 1996 228 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 214 400 199 SWIPnet Swedish IP Network
5515 213 783 174 Sonera Solution Autonomous Sy
719 205 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 155 42 146 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 119 1299 109 BTnet UK Regional network
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 177 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 287 98 103 ImpSat
7303 226 36 54 Telecom Argentina Stet-France
8151 209 333 115 UniNet S.A. de C.V.
11172 157 82 33 Servicios Alestra S.A de C.V
6503 156 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 105 7 31 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 71 306 43 Fundacao de Amparo a Pesquisa
15311 71 27 36 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
8065 68 6 15 Empresas Publicas de Medellin
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
15034 60 5 31 TIBA SA
11830 59 4 20 Instituto Costarricense de El
11340 58 2 28 Red Universitaria Nacional
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1193 691 Supernet, Inc.
7018 1430 462 AT&T
18566 452 445 Covad Communications
4323 530 362 Time Warner Communications, I
6197 472 362 BellSouth Network Solutions,
7843 588 359 Adelphia Corp.
1221 1130 306 Telstra Pty Ltd
11492 301 300 Cable One
7046 544 295 UUNET Technologies, Inc.
4355 410 295 EarthLink, Inc.
6347 367 288 SAVVIS Communications Corpora
1239 960 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 329 271 USDA
705 455 250 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 492 239 Virginia Polytechnic Institut
852 682 235 Telus Advanced Communications
1 668 234 GENUITY
6198 423 224 BellSouth Network Solutions,
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
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
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
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 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 /12:44
/13:91 /14:240 /15:442 /16:7324 /17:1562 /18:2855
/19:8044 /20:7917 /21:5681 /22:8627 /23:10301 /24:65977
/25:157 /26:144 /27:75 /28:74 /29:55 /30:81
/31:2 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1193 Supernet, Inc.
7018 512 1430 AT&T
702 494 801 UUNET - Commercial IP service
690 447 498 Merit Network
18566 447 452 Covad Communications
701 424 1599 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 360 588 Adelphia Corp.
1239 352 960 Sprint
6197 351 472 BellSouth Network Solutions,
6198 337 423 BellSouth Network Solutions,
11492 300 301 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 275 287 ImpSat
7046 252 544 UUNET Technologies, Inc.
2386 239 437 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
20115 231 352 Charter Communications
4355 230 410 EarthLink, Inc.
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:636 13:1 15:6 17:2 20:8 24:788
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:471 62:490 63:1891 64:1387
65:1826 66:1407 67:205 68:242 69:38 80:315
81:83 128:126 129:185 130:38 131:73 132:11
133:4 134:143 135:4 136:194 137:112 138:101
139:70 140:132 141:103 142:95 143:45 144:75
145:16 146:262 147:85 148:262 149:75 150:42
151:96 152:254 153:43 154:3 155:104 156:41
157:45 158:120 159:136 160:29 161:54 162:135
163:80 164:275 165:142 166:84 167:305 168:392
169:58 170:290 171:8 192:5354 193:2412 194:1992
195:911 196:460 198:3568 199:3013 200:2822 202:3642
203:5057 204:2980 205:2086 206:2300 207:2398 208:2710
209:2761 210:701 211:318 212:920 213:705 214:22
215:22 216:3220 217:567 218:73 219:18 220:44
End of report
