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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 01 Aug, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127306
Prefixes after maximum aggregation: 79649
Unique aggregates announced to Internet: 59971
Total ASes present in the Internet Routing Table: 15623
Origin-only ASes present in the Internet Routing Table: 13548
Origin ASes announcing only one prefix: 6156
Transit ASes present in the Internet Routing Table: 2075
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 20
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: 14
Number of addresses announced to Internet: 1221692128
Equivalent to 72 /8s, 209 /16s and 138 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56372
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22065
Total APNIC prefixes after maximum aggregation: 12679
Prefixes being announced from the APNIC address blocks: 20482
Unique aggregates announced from the APNIC address blocks: 12374
APNIC Region origin ASes present in the Internet Routing Table: 1873
APNIC Region origin ASes announcing only one prefix: 534
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 118588608
Equivalent to 7 /8s, 17 /16s and 132 /24s
Percentage of available APNIC address space announced: 63.9
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: 77606
Total ARIN prefixes after maximum aggregation: 48408
Prefixes being announced from the ARIN address blocks: 55383
Unique aggregates announced from the ARIN address blocks: 16310
ARIN Region origin ASes present in the Internet Routing Table: 8577
ARIN Region origin ASes announcing only one prefix: 2928
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 196601120
Equivalent to 11 /8s, 183 /16s and 229 /24s
Percentage of available ARIN address space announced: 73.2
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, 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: 22249
Total RIPE prefixes after maximum aggregation: 16273
Prefixes being announced from the RIPE address blocks: 18849
Unique aggregates announced from the RIPE address blocks: 12595
RIPE Region origin ASes present in the Internet Routing Table: 4758
RIPE Region origin ASes announcing only one prefix: 2600
RIPE Region transit ASes present in the Internet Routing Table: 837
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 134171456
Equivalent to 7 /8s, 255 /16s and 75 /24s
Percentage of available RIPE address space announced: 72.7
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: 5384
Total LACNIC prefixes after maximum aggregation: 2289
Prefixes being announced from the LACNIC address blocks: 4834
Unique aggregates announced from the LACNIC address blocks: 3121
LACNIC Region origin ASes present in the Internet Routing Table: 344
LACNIC Region origin ASes announcing only one prefix: 94
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 12897280
Equivalent to 0 /8s, 196 /16s and 204 /24s
Percentage of available LACNIC address space announced: 38.4
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 1046 1053 736 Telstra Pty Ltd
4755 434 134 69 Videsh Sanchar Nigam Ltd. Aut
2907 376 1912 351 SINET Japan
703 331 370 264 UUNET
17557 309 22 143 Pakistan Telecom
2764 302 325 273 connect.com.au pty ltd
7474 261 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 239 777 205 DACOM Corporation
9583 237 37 20 Satyam Infoway Ltd.,
4134 233 2008 113 Data Communications Bureau
4766 225 2461 168 Korea Internet Exchange for "
9800 195 314 56 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
4538 169 1506 21 China Education and Research
9929 169 153 33 China Netcom Corp.
9498 158 11 33 BHARTI BT INTERNET LTD.
4739 140 58 129 Commerical Internet eXchange
9238 140 9 21 TATA ISP
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1490 8781 1051 UUNET Technologies, Inc.
7018 1356 7166 943 AT&T
1239 961 2981 663 Sprint
3908 903 1534 483 Supernet, Inc.
7132 849 6604 236 Southwestern Bell Internet Se
189 671 371 322 Genuity
18566 644 160 8 Covad Communications
4323 616 526 176 Time Warner Communications, I
7843 603 394 223 Adelphia Corp.
6197 558 440 199 BellSouth Network Solutions,
209 523 2192 304 Qwest
852 523 1124 415 Telus Advanced Communications
1 522 1223 344 GENUITY
6198 491 271 186 BellSouth Network Solutions,
7066 488 204 258 Virginia Polytechnic Institut
705 483 191 306 UUNET Technologies, Inc.
20115 472 196 283 Charter Communications
690 435 63 287 Merit Network
3356 435 10673 357 Level 3 Communications, LLC
4355 402 338 109 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 733 2139 613 UUNET - Commercial IP service
719 312 307 125 LANLINK autonomous system
3301 288 1169 276 TeliaNet Sweden
3320 262 1988 223 Deutsche Telekom AG
8220 247 432 235 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 229 309 185 SWIPnet Swedish IP Network
3215 214 752 121 France Telecom Transpac
5515 186 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 165 158 117 BT Ignite European Backbone
8708 154 108 151 Romania Data Systems S.A.
3303 142 548 139 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 116 BTnet UK Regional network
3246 121 374 119 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 111 812 33 Ibernet, Internet Access Netw
2647 101 4129 44 SITA
5511 99 179 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 294 98 107 ImpSat
7303 241 39 58 Telecom Argentina Stet-France
8151 217 318 115 UniNet S.A. de C.V.
11172 177 69 42 Servicios Alestra S.A de C.V
11340 139 4 49 Red Universitaria Nacional
16814 135 9 17 NSS, S.A.
6503 134 205 94 AVANTEL, S.A.
10620 122 8 33 TVCABLE BOGOTA
11992 87 8 35 Integrated Systems
6147 83 70 21 Telefonica Del Peru
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 70 5 30 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
13999 67 36 8 Mega Cable S.A. de C.V.
7927 65 6 39 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 60 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 644 636 Covad Communications
7132 849 613 Southwestern Bell Internet Se
4323 616 440 Time Warner Communications, I
3908 903 420 Supernet, Inc.
7018 1356 413 AT&T
7843 603 380 Adelphia Corp.
4755 434 365 Videsh Sanchar Nigam Ltd. Aut
6197 558 359 BellSouth Network Solutions,
189 671 349 Genuity
11305 358 320 Interland Incorporated
1221 1046 310 Telstra Pty Ltd
6198 491 305 BellSouth Network Solutions,
1239 961 298 Sprint
27364 317 298 Armstrong Cable Services
4355 402 293 EarthLink, Inc.
6347 359 278 SAVVIS Communications Corpora
22909 283 266 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 360 245 Reseau Interordinateurs Scien
17676 250 231 XTAGE CORPORATION
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
65530 PRIVATE 216.27.102.0/24 10466 Mid Atlantic GigaPOP
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 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
192.153.136.0/21 568 DISO-UNRRA
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 /12:54
/13:98 /14:261 /15:477 /16:7432 /17:1741 /18:3059
/19:8653 /20:8690 /21:6316 /22:9285 /23:10822 /24:69625
/25:173 /26:279 /27:186 /28:28 /29:11 /30:47
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 638 644 Covad Communications
189 592 671 Genuity
3908 575 903 Supernet, Inc.
7018 481 1356 AT&T
702 446 733 UUNET - Commercial IP service
701 429 1490 UUNET Technologies, Inc.
6197 425 558 BellSouth Network Solutions,
690 394 435 Merit Network
7066 386 488 Virginia Polytechnic Institut
6198 384 491 BellSouth Network Solutions,
1239 360 961 Sprint
7843 337 603 Adelphia Corp.
20115 321 472 Charter Communications
27364 311 317 Armstrong Cable Services
11305 281 358 Interland Incorporated
25844 258 258 Skadden, Arps, Slate, Meagher
4355 216 402 EarthLink, Inc.
1 211 522 GENUITY
209 209 523 Qwest
3320 203 262 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:708 13:1 15:4 16:1 17:3
20:6 24:863 25:1 32:99 38:43 40:23
44:2 57:15 61:288 62:390 63:1866 64:1728
65:1987 66:2635 67:206 68:400 69:239 80:399
81:119 82:7 128:132 129:168 130:58 131:81
132:14 134:176 135:7 136:122 137:118 138:118
139:44 140:157 141:112 142:94 143:44 144:99
145:13 146:283 147:59 148:298 149:64 150:105
151:63 152:219 153:57 154:3 155:119 156:56
157:43 158:119 159:137 160:45 161:77 162:410
163:79 164:321 165:142 166:97 167:319 168:181
169:88 170:321 171:8 192:5332 193:2455 194:1982
195:1146 196:472 198:3573 199:2727 200:2991 202:3879
203:5285 204:2957 205:2034 206:2309 207:2417 208:2570
209:2859 210:878 211:285 212:1011 213:889 214:16
215:22 216:3269 217:691 218:96 219:68 220:98
221:9
End of report
