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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 28 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119742
Prefixes after maximum aggregation: 76632
Unique aggregates announced to Internet: 57765
Total ASes present in the Internet Routing Table: 14467
Origin-only ASes present in the Internet Routing Table: 12564
Origin ASes announcing only one prefix: 5655
Transit ASes present in the Internet Routing Table: 1903
Transit-only ASes present in the Internet Routing Table: 58
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: 25
Number of addresses announced to Internet: 1191614026
Equivalent to 71 /8s, 6 /16s and 150 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55447
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20245
Total APNIC prefixes after maximum aggregation: 11924
Prefixes being announced from the APNIC address blocks: 18747
Unique aggregates announced from the APNIC address blocks: 11443
APNIC Region origin ASes present in the Internet Routing Table: 1716
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104569761
Equivalent to 6 /8s, 59 /16s and 155 /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: 73753
Total ARIN prefixes after maximum aggregation: 47217
Prefixes being announced from the ARIN address blocks: 52230
Unique aggregates announced from the ARIN address blocks: 16139
ARIN Region origin ASes present in the Internet Routing Table: 8077
ARIN Region origin ASes announcing only one prefix: 2711
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185899712
Equivalent to 11 /8s, 20 /16s and 154 /24s
Percentage of available ARIN address space announced: 69.3
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: 20542
Total RIPE prefixes after maximum aggregation: 15300
Prefixes being announced from the RIPE address blocks: 17153
Unique aggregates announced from the RIPE address blocks: 11504
RIPE Region origin ASes present in the Internet Routing Table: 4293
RIPE Region origin ASes announcing only one prefix: 2343
RIPE Region transit ASes present in the Internet Routing Table: 782
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122704832
Equivalent to 7 /8s, 80 /16s and 83 /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: 5192
Total LACNIC prefixes after maximum aggregation: 2191
Prefixes being announced from the LACNIC address blocks: 4542
Unique aggregates announced from the LACNIC address blocks: 3005
LACNIC Region origin ASes present in the Internet Routing Table: 325
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: 11944960
Equivalent to 0 /8s, 182 /16s and 68 /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 1122 1185 827 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 256 135 76 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
9583 207 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 148 9 13 World Net & Services Co., Ltd
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
7713 128 46 15 PT TELEKOMUNIKASI INDONESIA
9238 127 7 18 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1604 9016 1182 UUNET Technologies, Inc.
7018 1438 7092 967 AT&T
3908 1193 1619 504 Supernet, Inc.
1239 962 3142 675 Sprint
852 680 1124 445 Telus Advanced Communications
1 670 8076 434 GENUITY
7843 592 399 225 Adelphia Corp.
7046 552 825 255 UUNET Technologies, Inc.
4323 528 472 168 Time Warner Communications, I
209 524 2103 333 Qwest
690 521 76 326 Merit Network
7066 493 204 253 Virginia Polytechnic Institut
6197 463 554 109 BellSouth Network Solutions,
18566 447 113 7 Covad Communications
705 429 133 185 UUNET Technologies, Inc.
2386 421 466 227 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
702 805 2301 669 UUNET - Commercial IP service
3215 313 803 174 France Telecom Transpac
3301 312 1141 298 TeliaNet Sweden
3320 255 1995 228 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
719 173 306 130 LANLINK autonomous system
5400 161 70 97 BT Ignite European Backbone
8708 158 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
8220 124 174 115 COLT Internet - International
12302 123 18 30 MobiFon S.A.
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 54 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 1193 689 Supernet, Inc.
7018 1438 471 AT&T
18566 447 440 Covad Communications
7843 592 367 Adelphia Corp.
4323 528 360 Time Warner Communications, I
6197 463 354 BellSouth Network Solutions,
11492 299 298 Cable One
7046 552 297 UUNET Technologies, Inc.
1221 1122 295 Telstra Pty Ltd
6347 373 294 SAVVIS Communications Corpora
4355 408 293 EarthLink, Inc.
1239 962 287 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 429 244 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 493 240 Virginia Polytechnic Institut
1 670 236 GENUITY
852 680 235 Telus Advanced Communications
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
192.140.0.0/16 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 /8:17 /9:3 /10:8 /11:12 /12:44
/13:91 /14:239 /15:442 /16:7332 /17:1561 /18:2844
/19:8045 /20:7874 /21:5674 /22:8584 /23:10289 /24:65968
/25:163 /26:173 /27:94 /28:77 /29:65 /30:98
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 769 1193 Supernet, Inc.
7018 521 1438 AT&T
702 497 805 UUNET - Commercial IP service
690 470 521 Merit Network
18566 442 447 Covad Communications
701 425 1604 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
7843 363 592 Adelphia Corp.
1239 355 962 Sprint
6197 341 463 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 251 552 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 230 351 Charter Communications
4355 228 408 EarthLink, Inc.
7303 226 227 Telecom Argentina Stet-France
2386 224 421 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:637 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 61:469 62:478 63:1885 64:1372
65:1822 66:1391 67:205 68:231 69:37 80:316
81:82 128:129 129:185 130:22 131:73 132:11
133:4 134:145 135:7 136:188 137:112 138:101
139:68 140:121 141:103 142:96 143:44 144:77
145:16 146:255 147:85 148:264 149:76 150:42
151:94 152:258 153:41 154:7 155:105 156:41
157:56 158:120 159:136 160:29 161:56 162:135
163:81 164:272 165:138 166:85 167:303 168:392
169:56 170:288 171:8 192:5352 193:2397 194:1963
195:910 196:457 198:3589 199:3036 200:2846 202:3666
203:5027 204:3022 205:2100 206:2349 207:2420 208:2677
209:2747 210:700 211:317 212:925 213:708 214:19
215:22 216:3214 217:556 218:71 219:17 220:44
End of report
