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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 27 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119525
Prefixes after maximum aggregation: 76528
Unique aggregates announced to Internet: 57662
Total ASes present in the Internet Routing Table: 14445
Origin-only ASes present in the Internet Routing Table: 12551
Origin ASes announcing only one prefix: 5652
Transit ASes present in the Internet Routing Table: 1894
Transit-only ASes present in the Internet Routing Table: 61
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: 26
Number of addresses announced to Internet: 1173581901
Equivalent to 69 /8s, 243 /16s and 112 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55359
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20193
Total APNIC prefixes after maximum aggregation: 11916
Prefixes being announced from the APNIC address blocks: 18696
Unique aggregates announced from the APNIC address blocks: 11423
APNIC Region origin ASes present in the Internet Routing Table: 1717
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 284
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104666528
Equivalent to 6 /8s, 61 /16s and 21 /24s
Percentage of available APNIC address space announced: 68.8
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: 73634
Total ARIN prefixes after maximum aggregation: 47166
Prefixes being announced from the ARIN address blocks: 52151
Unique aggregates announced from the ARIN address blocks: 16120
ARIN Region origin ASes present in the Internet Routing Table: 8070
ARIN Region origin ASes announcing only one prefix: 2710
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185831872
Equivalent to 11 /8s, 19 /16s and 145 /24s
Percentage of available ARIN address space announced: 69.2
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: 20492
Total RIPE prefixes after maximum aggregation: 15257
Prefixes being announced from the RIPE address blocks: 17113
Unique aggregates announced from the RIPE address blocks: 11474
RIPE Region origin ASes present in the Internet Routing Table: 4276
RIPE Region origin ASes announcing only one prefix: 2337
RIPE Region transit ASes present in the Internet Routing Table: 776
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122606788
Equivalent to 7 /8s, 78 /16s and 212 /24s
Percentage of available RIPE address space announced: 73.1
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: 5196
Total LACNIC prefixes after maximum aggregation: 2189
Prefixes being announced from the LACNIC address blocks: 4534
Unique aggregates announced from the LACNIC address blocks: 2998
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11905024
Equivalent to 0 /8s, 181 /16s and 168 /24s
Percentage of available LACNIC address space announced: 71.0
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 1130 1185 832 Telstra Pty Ltd
703 404 368 316 UUNET
2907 392 1976 368 SINET Japan
2764 336 340 305 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 298 276 206 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 245 135 75 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
9583 204 33 12 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 147 9 13 World Net & Services Co., Ltd
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
7713 126 45 13 PT TELEKOMUNIKASI INDONESIA
9238 126 7 17 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1604 9015 1180 UUNET Technologies, Inc.
7018 1439 7092 968 AT&T
3908 1192 1619 504 Supernet, Inc.
1239 958 3126 671 Sprint
852 679 1124 444 Telus Advanced Communications
1 667 8076 433 GENUITY
7843 592 399 225 Adelphia Corp.
7046 550 825 253 UUNET Technologies, Inc.
4323 528 472 168 Time Warner Communications, I
209 524 2103 333 Qwest
690 521 76 326 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 468 560 106 BellSouth Network Solutions,
18566 447 113 7 Covad Communications
705 424 132 180 UUNET Technologies, Inc.
2386 423 467 228 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 408 313 115 EarthLink, Inc.
3549 393 708 292 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
702 809 2306 672 UUNET - Commercial IP service
3215 312 787 173 France Telecom Transpac
3301 312 1141 298 TeliaNet Sweden
3320 253 1995 227 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 172 306 130 LANLINK autonomous system
5400 159 70 96 BT Ignite European Backbone
8708 157 42 147 Romania Data Systems S.A.
20858 145 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 130 1302 117 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 121 174 112 COLT Internet - International
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 193 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 98 104 ImpSat
7303 227 36 52 Telecom Argentina Stet-France
8151 210 333 116 UniNet S.A. de C.V.
11172 156 81 32 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 112 3 41 Red Universitaria Nacional
10620 102 6 31 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 38 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 69 7 30 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
4270 66 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1192 688 Supernet, Inc.
7018 1439 471 AT&T
18566 447 440 Covad Communications
7843 592 367 Adelphia Corp.
6197 468 362 BellSouth Network Solutions,
4323 528 360 Time Warner Communications, I
1221 1130 298 Telstra Pty Ltd
11492 299 298 Cable One
7046 550 297 UUNET Technologies, Inc.
4355 408 293 EarthLink, Inc.
6347 372 293 SAVVIS Communications Corpora
1239 958 287 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 424 244 UUNET Technologies, Inc.
376 342 241 Reseau Interordinateurs Scien
7066 492 239 Virginia Polytechnic Institut
852 679 235 Telus Advanced Communications
1 667 234 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
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
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
192.243.36.0/23 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 /8:16 /9:3 /10:8 /11:12 /12:44
/13:91 /14:240 /15:443 /16:7314 /17:1559 /18:2842
/19:8044 /20:7866 /21:5665 /22:8591 /23:10270 /24:65807
/25:162 /26:175 /27:94 /28:77 /29:62 /30:97
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 768 1192 Supernet, Inc.
7018 521 1439 AT&T
702 498 809 UUNET - Commercial IP service
690 470 521 Merit Network
18566 442 447 Covad Communications
701 421 1604 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 363 592 Adelphia Corp.
1239 354 958 Sprint
6197 344 468 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 305 317 ImpSat
11492 298 299 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 249 550 UUNET Technologies, Inc.
3215 240 312 France Telecom Transpac
20115 230 351 Charter Communications
4355 228 408 EarthLink, Inc.
2386 226 423 AT&T Data Communications Serv
7303 226 227 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:638 13:1 15:6 17:3 20:7 24:790
25:1 32:82 34:1 38:39 40:19 44:1
55:1 57:16 61:470 62:481 63:1884 64:1366
65:1822 66:1392 67:205 68:230 69:37 80:316
81:80 128:129 129:188 130:22 131:72 132:11
133:4 134:138 135:7 136:183 137:112 138:101
139:68 140:122 141:103 142:96 143:44 144:77
145:16 146:255 147:85 148:264 149:76 150:42
151:94 152:257 153:41 154:7 155:105 156:50
157:56 158:120 159:136 160:29 161:57 162:134
163:78 164:270 165:136 166:85 167:298 168:392
169:56 170:288 171:8 178:1 192:5349 193:2403
194:1957 195:900 196:456 198:3586 199:3025 200:2842
202:3652 203:4977 204:3011 205:2097 206:2349 207:2426
208:2673 209:2732 210:687 211:328 212:930 213:712
214:19 215:22 216:3198 217:547 218:68 219:17
220:43
End of report
