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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 20 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123037
Prefixes after maximum aggregation: 77936
Unique aggregates announced to Internet: 59152
Total ASes present in the Internet Routing Table: 14831
Origin-only ASes present in the Internet Routing Table: 12858
Origin ASes announcing only one prefix: 5822
Transit ASes present in the Internet Routing Table: 1973
Transit-only ASes present in the Internet Routing Table: 68
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: 1218320645
Equivalent to 72 /8s, 158 /16s and 25 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57740
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20738
Total APNIC prefixes after maximum aggregation: 12141
Prefixes being announced from the APNIC address blocks: 19220
Unique aggregates announced from the APNIC address blocks: 11739
APNIC Region origin ASes present in the Internet Routing Table: 1752
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 296
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107645344
Equivalent to 6 /8s, 106 /16s and 137 /24s
Percentage of available APNIC address space announced: 57.1
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: 75692
Total ARIN prefixes after maximum aggregation: 47970
Prefixes being announced from the ARIN address blocks: 53848
Unique aggregates announced from the ARIN address blocks: 16827
ARIN Region origin ASes present in the Internet Routing Table: 8237
ARIN Region origin ASes announcing only one prefix: 2795
ARIN Region transit ASes present in the Internet Routing Table: 790
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187797568
Equivalent to 11 /8s, 49 /16s and 144 /24s
Percentage of available ARIN address space announced: 70.0
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: 21270
Total RIPE prefixes after maximum aggregation: 15606
Prefixes being announced from the RIPE address blocks: 17795
Unique aggregates announced from the RIPE address blocks: 11852
RIPE Region origin ASes present in the Internet Routing Table: 4446
RIPE Region origin ASes announcing only one prefix: 2422
RIPE Region transit ASes present in the Internet Routing Table: 809
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 128112384
Equivalent to 7 /8s, 162 /16s and 215 /24s
Percentage of available RIPE address space announced: 76.4
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5327
Total LACNIC prefixes after maximum aggregation: 2219
Prefixes being announced from the LACNIC address blocks: 4696
Unique aggregates announced from the LACNIC address blocks: 3041
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12355328
Equivalent to 0 /8s, 188 /16s and 135 /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 1099 1106 803 Telstra Pty Ltd
703 404 370 313 UUNET
2907 392 1992 369 SINET Japan
17557 373 27 139 Pakistan Telecom
2764 325 341 292 connect.com.au pty ltd
4134 309 2661 97 Data Communications Bureau
7474 307 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 250 772 212 DACOM Corporation
17676 234 3606 25 XTAGE CORPORATION
4755 227 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 215 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 178 57 77 Primus Telecommunications
9800 167 205 42 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 136 8 17 TATA ISP
4716 128 717 122 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1588 8825 1135 UUNET Technologies, Inc.
7018 1365 7129 948 AT&T
3908 1249 1588 481 Supernet, Inc.
1239 984 3153 699 Sprint
1 707 8071 429 GENUITY
7843 602 414 192 Adelphia Corp.
3561 591 2352 344 Cable & Wireless USA
4323 557 490 173 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
18566 539 121 12 Covad Communications
209 535 2092 340 Qwest
4151 535 691 59 USDA
690 503 73 313 Merit Network
2386 494 480 245 AT&T Data Communications Serv
7066 490 204 254 Virginia Polytechnic Institut
6197 481 562 114 BellSouth Network Solutions,
6198 449 197 196 BellSouth Network Solutions,
705 446 165 192 UUNET Technologies, Inc.
20115 406 168 265 Charter Communications
3549 405 695 309 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 784 2236 648 UUNET - Commercial IP service
3301 317 1175 307 TeliaNet Sweden
3215 310 835 174 France Telecom Transpac
3320 267 1996 230 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
5400 218 77 103 BT Ignite European Backbone
1257 217 344 191 SWIPnet Swedish IP Network
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 150 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 132 195 123 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 107 11 12 RNC - Romanian Natioanal R&D
3352 106 686 32 Ibernet, Internet Access Netw
3246 105 360 102 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 292 98 106 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 215 341 117 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 35 Integrated Systems
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
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 40 Global One Colombia
7738 59 170 11 Telecomunicacoes da Bahia S.A
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1249 768 Supernet, Inc.
18566 539 527 Covad Communications
4151 535 476 USDA
7018 1365 417 AT&T
7843 602 410 Adelphia Corp.
4323 557 384 Time Warner Communications, I
6197 481 367 BellSouth Network Solutions,
1221 1099 296 Telstra Pty Ltd
6347 370 290 SAVVIS Communications Corpora
1239 984 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
1 707 278 GENUITY
4355 385 273 EarthLink, Inc.
705 446 254 UUNET Technologies, Inc.
6198 449 253 BellSouth Network Solutions,
2386 494 249 AT&T Data Communications Serv
4814 264 249 China Telecom (Group)
3561 591 247 Cable & Wireless USA
27364 258 240 Armstrong Cable Services
7066 490 236 Virginia Polytechnic Institut
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 /8:18 /9:3 /10:8 /11:13 /12:46
/13:89 /14:238 /15:450 /16:7358 /17:1623 /18:2910
/19:8236 /20:8197 /21:5850 /22:8834 /23:10642 /24:67650
/25:192 /26:198 /27:126 /28:118 /29:75 /30:91
/31:4 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 817 1249 Supernet, Inc.
18566 534 539 Covad Communications
702 487 784 UUNET - Commercial IP service
7018 474 1365 AT&T
701 472 1588 UUNET Technologies, Inc.
690 452 503 Merit Network
7066 389 490 Virginia Polytechnic Institut
1239 372 984 Sprint
7843 368 602 Adelphia Corp.
6198 358 449 BellSouth Network Solutions,
6197 355 481 BellSouth Network Solutions,
2386 294 494 AT&T Data Communications Serv
22927 294 295 TELEFONICA DE ARGENTINA
20115 281 406 Charter Communications
6140 279 292 ImpSat
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 234 310 France Telecom Transpac
209 225 535 Qwest
4355 213 385 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:667 13:1 15:4 17:2 20:10 24:838
25:1 32:92 34:1 38:61 40:18 44:2
55:1 57:15 61:452 62:492 63:1931 64:1467
65:1919 66:1569 67:222 68:320 69:62 80:337
81:98 128:150 129:224 130:42 131:83 132:11
133:11 134:147 135:4 136:113 137:116 138:107
139:67 140:144 141:122 142:95 143:45 144:98
145:18 146:264 147:89 148:274 149:73 150:42
151:114 152:259 153:51 154:2 155:109 156:43
157:44 158:123 159:138 160:33 161:60 162:123
163:87 164:305 165:146 166:74 167:320 168:407
169:55 170:310 171:6 192:5300 193:2393 194:1992
195:981 196:477 198:3618 199:3226 200:2899 202:3668
203:5124 204:3061 205:2020 206:2412 207:2422 208:2674
209:2806 210:741 211:332 212:960 213:785 214:21
215:21 216:3235 217:606 218:84 219:9 220:53
End of report
