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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 01 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126545
Prefixes after maximum aggregation: 79198
Unique aggregates announced to Internet: 60026
Total ASes present in the Internet Routing Table: 15420
Origin-only ASes present in the Internet Routing Table: 13360
Origin ASes announcing only one prefix: 6060
Transit ASes present in the Internet Routing Table: 2060
Transit-only ASes present in the Internet Routing Table: 78
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: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1252959072
Equivalent to 74 /8s, 174 /16s and 163 /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: 55935
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21721
Total APNIC prefixes after maximum aggregation: 12644
Prefixes being announced from the APNIC address blocks: 20157
Unique aggregates announced from the APNIC address blocks: 12309
APNIC Region origin ASes present in the Internet Routing Table: 1832
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 304
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 116654368
Equivalent to 6 /8s, 244 /16s and 1 /24s
Percentage of available APNIC address space announced: 62.9
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: 77202
Total ARIN prefixes after maximum aggregation: 48171
Prefixes being announced from the ARIN address blocks: 55098
Unique aggregates announced from the ARIN address blocks: 16500
ARIN Region origin ASes present in the Internet Routing Table: 8490
ARIN Region origin ASes announcing only one prefix: 2894
ARIN Region transit ASes present in the Internet Routing Table: 819
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193955328
Equivalent to 11 /8s, 143 /16s and 134 /24s
Percentage of available ARIN address space announced: 72.3
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, 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: 22234
Total RIPE prefixes after maximum aggregation: 16100
Prefixes being announced from the RIPE address blocks: 18635
Unique aggregates announced from the RIPE address blocks: 12347
RIPE Region origin ASes present in the Internet Routing Table: 4682
RIPE Region origin ASes announcing only one prefix: 2551
RIPE Region transit ASes present in the Internet Routing Table: 836
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 132712128
Equivalent to 7 /8s, 233 /16s and 6 /24s
Percentage of available RIPE address space announced: 71.9
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: 5386
Total LACNIC prefixes after maximum aggregation: 2283
Prefixes being announced from the LACNIC address blocks: 4823
Unique aggregates announced from the LACNIC address blocks: 3044
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 89
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: 12810240
Equivalent to 0 /8s, 195 /16s and 120 /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 1054 1069 745 Telstra Pty Ltd
4755 406 133 61 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 345 24 151 Pakistan Telecom
703 336 370 268 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 269 306 201 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 221 2475 165 Korea Internet Exchange for "
9800 188 306 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 168 11 28 BHARTI BT INTERNET LTD.
9929 156 169 32 China Netcom Corp.
4739 140 58 128 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
7539 126 139 101 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1531 8815 1077 UUNET Technologies, Inc.
7018 1339 7198 925 AT&T
1239 955 3004 671 Sprint
3908 909 1535 478 Supernet, Inc.
7132 836 6606 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 633 359 201 Adelphia Corp.
4323 606 526 176 Time Warner Communications, I
1 604 2584 408 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,
209 513 2110 301 Qwest
705 510 271 331 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 475 263 186 BellSouth Network Solutions,
20115 459 194 281 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 1022 2171 629 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
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 226 312 188 SWIPnet Swedish IP Network
5400 206 143 124 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 150 Romania Data Systems S.A.
3303 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 115 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 102 178 79 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 235 37 59 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 134 205 96 AVANTEL, S.A.
11340 119 3 40 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
6147 99 70 21 Telefonica Del Peru
11992 88 8 38 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
4270 68 18 9 Red de Interconexion Universi
11830 68 5 28 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
15034 62 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 836 604 Southwestern Bell Internet Se
18566 604 596 Covad Communications
11305 549 477 Interland Incorporated
7843 633 432 Adelphia Corp.
3908 909 431 Supernet, Inc.
4323 606 430 Time Warner Communications, I
7018 1339 414 AT&T
702 1022 393 UUNET - Commercial IP service
189 687 388 Genuity
4755 406 345 Videsh Sanchar Nigam Ltd. Aut
1221 1054 309 Telstra Pty Ltd
6197 521 305 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
4355 404 295 EarthLink, Inc.
6198 475 289 BellSouth Network Solutions,
1239 955 284 Sprint
6347 363 282 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
64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com
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 /15:470 /16:7422 /17:1739 /18:3030
/19:8516 /20:8502 /21:6233 /22:9189 /23:10744 /24:69652
/25:157 /26:255 /27:67 /28:41 /29:23 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 716 1022 UUNET - Commercial IP service
189 607 687 Genuity
18566 598 604 Covad Communications
3908 573 909 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 468 1339 AT&T
701 432 1531 UUNET Technologies, Inc.
690 406 448 Merit Network
7843 397 633 Adelphia Corp.
6197 393 521 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 368 475 BellSouth Network Solutions,
1239 360 955 Sprint
20115 319 459 Charter Communications
27364 313 319 Armstrong Cable Services
25844 255 255 Skadden, Arps, Slate, Meagher
1 223 604 GENUITY
4355 216 404 EarthLink, Inc.
3320 208 267 Deutsche Telekom AG
705 207 510 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:700 13:1 15:4 16:1 17:3
20:7 24:875 25:1 32:95 38:43 40:21
44:2 57:17 61:261 62:369 63:1870 64:1755
65:1960 66:2545 67:188 68:385 69:152 80:396
81:123 82:2 128:140 129:171 130:50 131:79
132:26 134:174 135:4 136:116 137:107 138:110
139:65 140:166 141:120 142:94 143:44 144:108
145:13 146:276 147:96 148:289 149:62 150:79
151:69 152:233 153:101 154:7 155:117 156:57
157:44 158:128 159:139 160:45 161:75 162:380
163:81 164:319 165:140 166:95 167:319 168:174
169:95 170:318 171:8 192:5334 193:2592 194:1966
195:1088 196:471 198:3591 199:2708 200:2958 202:3892
203:5259 204:2994 205:2047 206:2338 207:2436 208:2610
209:2882 210:843 211:355 212:989 213:851 214:19
215:23 216:3412 217:643 218:92 219:55 220:90
221:3
End of report
