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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 11 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125689
Prefixes after maximum aggregation: 78403
Unique aggregates announced to Internet: 59253
Total ASes present in the Internet Routing Table: 15160
Origin-only ASes present in the Internet Routing Table: 13118
Origin ASes announcing only one prefix: 5975
Transit ASes present in the Internet Routing Table: 2042
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1229559552
Equivalent to 73 /8s, 73 /16s and 151 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54630
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21277
Total APNIC prefixes after maximum aggregation: 12342
Prefixes being announced from the APNIC address blocks: 19735
Unique aggregates announced from the APNIC address blocks: 12016
APNIC Region origin ASes present in the Internet Routing Table: 1794
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 113092576
Equivalent to 6 /8s, 189 /16s and 167 /24s
Percentage of available APNIC address space announced: 60.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77366
Total ARIN prefixes after maximum aggregation: 47975
Prefixes being announced from the ARIN address blocks: 55489
Unique aggregates announced from the ARIN address blocks: 16501
ARIN Region origin ASes present in the Internet Routing Table: 8384
ARIN Region origin ASes announcing only one prefix: 2872
ARIN Region transit ASes present in the Internet Routing Table: 811
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191661824
Equivalent to 11 /8s, 108 /16s and 135 /24s
Percentage of available ARIN address space announced: 71.4
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, 29695 - 30719
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: 21705
Total RIPE prefixes after maximum aggregation: 15847
Prefixes being announced from the RIPE address blocks: 18205
Unique aggregates announced from the RIPE address blocks: 12059
RIPE Region origin ASes present in the Internet Routing Table: 4575
RIPE Region origin ASes announcing only one prefix: 2494
RIPE Region transit ASes present in the Internet Routing Table: 823
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 130142080
Equivalent to 7 /8s, 193 /16s and 207 /24s
Percentage of available RIPE address space announced: 70.5
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: 5339
Total LACNIC prefixes after maximum aggregation: 2239
Prefixes being announced from the LACNIC address blocks: 4759
Unique aggregates announced from the LACNIC address blocks: 3027
LACNIC Region origin ASes present in the Internet Routing Table: 333
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12572928
Equivalent to 0 /8s, 191 /16s and 217 /24s
Percentage of available LACNIC address space announced: 37.5
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1084 1103 773 Telstra Pty Ltd
4755 415 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 388 1993 365 SINET Japan
703 386 382 307 UUNET
17557 367 26 146 Pakistan Telecom
2764 313 340 279 connect.com.au pty ltd
4814 294 85 21 China Telecom (Group)
7474 271 291 207 Optus Communications Pty Ltd
17676 247 3814 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 225 2030 116 Data Communications Bureau
9583 221 33 15 Satyam Infoway Ltd.,
4766 214 2475 160 Korea Internet Exchange for "
9443 183 58 82 Primus Telecommunications
9800 179 259 57 CHINA UNICOM
9238 139 8 17 TATA ISP
4739 136 57 125 Commerical Internet eXchange
9498 133 9 19 BHARTI BT INTERNET LTD.
4716 126 729 120 TTnet
9768 126 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1563 8920 1101 UUNET Technologies, Inc.
7018 1327 7151 920 AT&T
4151 1099 691 60 USDA
7132 964 6476 208 Southwestern Bell Internet Se
1239 934 3010 659 Sprint
3908 917 1571 472 Supernet, Inc.
189 704 341 287 Genuity
1 681 2698 465 GENUITY
7843 657 346 169 Adelphia Corp.
4323 588 514 169 Time Warner Communications, I
18566 576 160 8 Covad Communications
2386 565 483 272 AT&T Data Communications Serv
852 549 1156 431 Telus Advanced Communications
705 533 286 237 UUNET Technologies, Inc.
3561 507 2340 329 Cable & Wireless USA
209 489 2104 294 Qwest
6197 483 340 193 BellSouth Network Solutions,
690 482 69 315 Merit Network
7066 479 204 260 Virginia Polytechnic Institut
20115 472 193 286 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 761 2173 641 UUNET - Commercial IP service
3320 347 2004 229 Deutsche Telekom AG
3301 306 1157 296 TeliaNet Sweden
3215 303 852 174 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 226 327 188 SWIPnet Swedish IP Network
5400 202 112 113 BT Ignite European Backbone
8220 201 366 190 COLT Internet - International
719 193 307 125 LANLINK autonomous system
5515 189 795 153 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
20858 165 17 3 This AS will be used to conne
8708 157 44 151 Romania Data Systems S.A.
3303 141 517 140 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 123 1299 113 BTnet UK Regional network
3269 114 787 62 TELECOM ITALIA
3246 109 383 106 Song Networks
3352 107 748 30 Ibernet, Internet Access Netw
2874 97 85 38 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 105 ImpSat
7303 255 36 64 Telecom Argentina Stet-France
8151 220 335 122 UniNet S.A. de C.V.
11172 166 66 36 Servicios Alestra S.A de C.V
6503 141 206 101 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 91 62 20 Telefonica Del Peru
11992 87 8 36 Integrated Systems
8065 74 8 16 Empresas Publicas de Medellin
13999 74 36 8 Mega Cable S.A. de C.V.
1916 73 306 43 Fundacao de Amparo a Pesquisa
4270 73 18 10 Red de Interconexion Universi
6535 73 5 22 Chilesat Servicios Empresari
15311 72 28 36 Telefonica Empresas
11830 67 5 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1099 1039 USDA
7132 964 756 Southwestern Bell Internet Se
18566 576 568 Covad Communications
7843 657 488 Adelphia Corp.
3908 917 445 Supernet, Inc.
4323 588 419 Time Warner Communications, I
189 704 417 Genuity
7018 1327 407 AT&T
4755 415 343 Videsh Sanchar Nigam Ltd. Aut
1221 1084 311 Telstra Pty Ltd
705 533 296 UUNET Technologies, Inc.
2386 565 293 AT&T Data Communications Serv
6197 483 290 BellSouth Network Solutions,
4355 393 289 EarthLink, Inc.
6198 464 288 BellSouth Network Solutions,
6347 367 288 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 934 275 Sprint
4814 294 273 China Telecom (Group)
11305 336 260 Interland Incorporated
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
64512 PRIVATE 194.67.54.0/24 3216 Teleross, Moscow, Ru
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
192.43.230.0/24 4738 South Australian Academic Res
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
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:13 /12:51
/13:93 /14:253 /15:468 /16:7418 /17:1684 /18:2973
/19:8392 /20:8394 /21:6004 /22:8959 /23:10648 /24:69824
/25:162 /26:184 /27:52 /28:25 /29:13 /30:22
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 704 Genuity
3908 573 917 Supernet, Inc.
18566 570 576 Covad Communications
702 467 761 UUNET - Commercial IP service
7018 464 1327 AT&T
701 432 1563 UUNET Technologies, Inc.
690 431 482 Merit Network
7843 420 657 Adelphia Corp.
7066 376 479 Virginia Polytechnic Institut
6198 363 464 BellSouth Network Solutions,
6197 360 483 BellSouth Network Solutions,
1239 352 934 Sprint
2386 347 565 AT&T Data Communications Serv
20115 334 472 Charter Communications
11305 312 336 Interland Incorporated
3320 290 347 Deutsche Telekom AG
4814 280 294 China Telecom (Group)
27364 263 270 Armstrong Cable Services
1 252 681 GENUITY
22927 236 298 TELEFONICA DE ARGENTINA
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:695 13:1 15:4 16:1 17:3 20:8
24:805 25:1 32:87 38:122 40:19 44:2
55:1 57:16 61:446 62:609 63:1864 64:1645
65:1909 66:2418 67:182 68:368 69:125 80:361
81:149 128:146 129:176 130:45 131:80 132:11
133:1 134:146 135:3 136:114 137:108 138:108
139:65 140:134 141:111 142:98 143:44 144:101
145:17 146:269 147:95 148:288 149:71 150:44
151:76 152:244 153:57 154:2 155:109 156:46
157:42 158:125 159:147 160:37 161:73 162:141
163:78 164:297 165:142 166:95 167:334 168:408
169:62 170:305 171:7 192:5301 193:2422 194:1978
195:1046 196:457 198:3558 199:3764 200:2964 202:3799
203:5167 204:3028 205:2055 206:2365 207:2402 208:2623
209:2864 210:776 211:323 212:955 213:790 214:20
215:23 216:3381 217:613 218:90 219:22 220:95
End of report
