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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 30 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126368
Prefixes after maximum aggregation: 79176
Unique aggregates announced to Internet: 59957
Total ASes present in the Internet Routing Table: 15415
Origin-only ASes present in the Internet Routing Table: 13363
Origin ASes announcing only one prefix: 6057
Transit ASes present in the Internet Routing Table: 2052
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1251917024
Equivalent to 74 /8s, 158 /16s and 188 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55842
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21603
Total APNIC prefixes after maximum aggregation: 12631
Prefixes being announced from the APNIC address blocks: 20041
Unique aggregates announced from the APNIC address blocks: 12275
APNIC Region origin ASes present in the Internet Routing Table: 1830
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 300
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 115983648
Equivalent to 6 /8s, 233 /16s and 197 /24s
Percentage of available APNIC address space announced: 62.5
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: 77191
Total ARIN prefixes after maximum aggregation: 48175
Prefixes being announced from the ARIN address blocks: 55094
Unique aggregates announced from the ARIN address blocks: 16494
ARIN Region origin ASes present in the Internet Routing Table: 8491
ARIN Region origin ASes announcing only one prefix: 2898
ARIN Region transit ASes present in the Internet Routing Table: 818
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193645824
Equivalent to 11 /8s, 138 /16s and 205 /24s
Percentage of available ARIN address space announced: 72.1
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: 22189
Total RIPE prefixes after maximum aggregation: 16096
Prefixes being announced from the RIPE address blocks: 18588
Unique aggregates announced from the RIPE address blocks: 12328
RIPE Region origin ASes present in the Internet Routing Table: 4679
RIPE Region origin ASes announcing only one prefix: 2546
RIPE Region transit ASes present in the Internet Routing Table: 837
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132525888
Equivalent to 7 /8s, 230 /16s and 47 /24s
Percentage of available RIPE address space announced: 71.8
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: 2274
Prefixes being announced from the LACNIC address blocks: 4813
Unique aggregates announced from the LACNIC address blocks: 3041
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 90
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12809728
Equivalent to 0 /8s, 195 /16s and 118 /24s
Percentage of available LACNIC address space announced: 38.2
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 1056 1069 746 Telstra Pty Ltd
4755 402 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 345 24 151 Pakistan Telecom
703 337 371 269 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 268 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 232 37 21 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 220 2475 165 Korea Internet Exchange for "
9800 188 305 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 166 11 26 BHARTI BT INTERNET LTD.
9929 152 169 34 China Netcom Corp.
4739 140 58 128 Commerical Internet eXchange
9238 137 8 19 TATA ISP
4716 132 745 126 TTnet
7539 128 139 102 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1533 8816 1078 UUNET Technologies, Inc.
7018 1335 7198 922 AT&T
1239 953 3004 669 Sprint
3908 908 1534 477 Supernet, Inc.
7132 834 6575 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 632 358 206 Adelphia Corp.
4323 606 526 176 Time Warner Communications, I
1 605 2584 409 GENUITY
18566 604 160 8 Covad Communications
11305 549 170 72 Interland Incorporated
852 529 1124 418 Telus Advanced Communications
6197 521 350 216 BellSouth Network Solutions,
209 514 2110 302 Qwest
705 509 271 330 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 475 263 186 BellSouth Network Solutions,
20115 460 194 282 Charter Communications
690 448 64 294 Merit Network
2386 408 541 230 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1027 2172 631 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 267 2004 228 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 262 834 149 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 231 386 219 COLT Internet - International
1257 226 312 188 SWIPnet Swedish IP Network
5400 205 143 123 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 44 149 Romania Data Systems S.A.
3303 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 104 178 81 France Telecom
2647 98 4129 40 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 237 37 53 Telecom Argentina Stet-France
8151 212 334 114 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 133 205 95 AVANTEL, S.A.
11340 119 3 40 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
6147 99 70 21 Telefonica Del Peru
11992 86 8 36 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
11830 68 5 28 Instituto Costarricense de El
4270 67 18 9 Red de Interconexion Universi
7927 66 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
15034 62 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 834 602 Southwestern Bell Internet Se
18566 604 596 Covad Communications
11305 549 477 Interland Incorporated
3908 908 431 Supernet, Inc.
4323 606 430 Time Warner Communications, I
7843 632 426 Adelphia Corp.
7018 1335 413 AT&T
702 1027 396 UUNET - Commercial IP service
189 687 388 Genuity
4755 402 342 Videsh Sanchar Nigam Ltd. Aut
1221 1056 310 Telstra Pty Ltd
6197 521 305 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
4355 406 297 EarthLink, Inc.
6198 475 289 BellSouth Network Solutions,
1239 953 284 Sprint
6347 362 281 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
376 383 254 Reseau Interordinateurs Scien
25844 255 247 Skadden, Arps, Slate, Meagher
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
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
172.208.0.0/14 1668 GNN Hosting Service
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
192.149.62.0/23 29839 RegistryPro, Inc.
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 /8:19 /9:7 /10:8 /11:13 /12:53
/13:98 /14:257 /15:467 /16:7421 /17:1723 /18:3029
/19:8510 /20:8508 /21:6229 /22:9152 /23:10740 /24:69544
/25:157 /26:253 /27:67 /28:41 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 720 1027 UUNET - Commercial IP service
189 607 687 Genuity
18566 598 604 Covad Communications
3908 572 908 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 468 1335 AT&T
701 431 1533 UUNET Technologies, Inc.
690 406 448 Merit Network
7843 396 632 Adelphia Corp.
6197 393 521 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 368 475 BellSouth Network Solutions,
1239 359 953 Sprint
20115 320 460 Charter Communications
27364 313 319 Armstrong Cable Services
25844 255 255 Skadden, Arps, Slate, Meagher
1 223 605 GENUITY
4355 216 406 EarthLink, Inc.
3320 208 267 Deutsche Telekom AG
705 207 509 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:702 13:1 15:4 16:1 17:3
20:7 24:875 25:1 32:95 38:43 40:21
44:2 57:17 61:242 62:367 63:1869 64:1755
65:1959 66:2542 67:188 68:384 69:152 80:383
81:127 82:2 128:141 129:171 130:50 131:80
132:26 134:175 135:4 136:116 137:107 138:110
139:65 140:167 141:122 142:94 143:44 144:107
145:13 146:276 147:96 148:289 149:62 150:79
151:69 152:232 153:101 154:7 155:117 156:57
157:45 158:128 159:140 160:45 161:75 162:380
163:79 164:314 165:141 166:95 167:319 168:174
169:91 170:317 171:8 192:5334 193:2585 194:1969
195:1084 196:472 198:3589 199:2706 200:2949 202:3863
203:5245 204:2991 205:2049 206:2342 207:2435 208:2605
209:2885 210:844 211:356 212:983 213:845 214:19
215:23 216:3412 217:644 218:92 219:52 220:96
221:3
End of report
