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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 19 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126151
Prefixes after maximum aggregation: 79053
Unique aggregates announced to Internet: 59505
Total ASes present in the Internet Routing Table: 15363
Origin-only ASes present in the Internet Routing Table: 13316
Origin ASes announcing only one prefix: 6014
Transit ASes present in the Internet Routing Table: 2047
Transit-only ASes present in the Internet Routing Table: 74
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: 17
Number of addresses announced to Internet: 1252148832
Equivalent to 74 /8s, 162 /16s and 70 /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: 55560
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21569
Total APNIC prefixes after maximum aggregation: 12571
Prefixes being announced from the APNIC address blocks: 19974
Unique aggregates announced from the APNIC address blocks: 12220
APNIC Region origin ASes present in the Internet Routing Table: 1825
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 115870112
Equivalent to 6 /8s, 232 /16s and 9 /24s
Percentage of available APNIC address space announced: 62.4
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: 77530
Total ARIN prefixes after maximum aggregation: 48219
Prefixes being announced from the ARIN address blocks: 55525
Unique aggregates announced from the ARIN address blocks: 16515
ARIN Region origin ASes present in the Internet Routing Table: 8479
ARIN Region origin ASes announcing only one prefix: 2884
ARIN Region transit ASes present in the Internet Routing Table: 816
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193031424
Equivalent to 11 /8s, 129 /16s and 109 /24s
Percentage of available ARIN address space announced: 71.9
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: 21647
Total RIPE prefixes after maximum aggregation: 16005
Prefixes being announced from the RIPE address blocks: 18136
Unique aggregates announced from the RIPE address blocks: 12198
RIPE Region origin ASes present in the Internet Routing Table: 4648
RIPE Region origin ASes announcing only one prefix: 2518
RIPE Region transit ASes present in the Internet Routing Table: 830
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132263232
Equivalent to 7 /8s, 226 /16s and 45 /24s
Percentage of available RIPE address space announced: 71.7
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: 5404
Total LACNIC prefixes after maximum aggregation: 2258
Prefixes being announced from the LACNIC address blocks: 4847
Unique aggregates announced from the LACNIC address blocks: 3001
LACNIC Region origin ASes present in the Internet Routing Table: 336
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12782848
Equivalent to 0 /8s, 195 /16s and 13 /24s
Percentage of available LACNIC address space announced: 38.1
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 1068 1071 761 Telstra Pty Ltd
4755 419 133 67 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 344 24 149 Pakistan Telecom
703 335 371 268 UUNET
2764 307 325 274 connect.com.au pty ltd
7474 274 306 205 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 244 773 211 DACOM Corporation
4134 237 2040 116 Data Communications Bureau
9583 232 37 21 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9800 186 302 61 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 165 11 27 BHARTI BT INTERNET LTD.
7539 149 171 102 TANet2, sponsored by NSC, TAI
4739 139 58 127 Commerical Internet eXchange
9238 135 8 18 TATA ISP
9929 134 169 34 China Netcom Corp.
4716 128 745 122 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1545 8866 1090 UUNET Technologies, Inc.
7018 1336 7179 921 AT&T
7132 1001 6572 228 Southwestern Bell Internet Se
1239 953 3020 671 Sprint
3908 912 1548 477 Supernet, Inc.
189 683 340 296 Genuity
11305 647 170 72 Interland Incorporated
1 614 2602 416 GENUITY
7843 613 360 175 Adelphia Corp.
4323 602 525 175 Time Warner Communications, I
18566 599 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
6197 502 348 197 BellSouth Network Solutions,
209 498 2108 301 Qwest
7066 487 204 260 Virginia Polytechnic Institut
6198 468 230 178 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 443 64 289 Merit Network
2386 406 538 234 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 748 2174 635 UUNET - Commercial IP service
3301 304 1171 291 TeliaNet Sweden
3320 265 2004 227 Deutsche Telekom AG
719 264 307 125 LANLINK autonomous system
3215 258 850 151 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 225 384 213 COLT Internet - International
1257 223 315 185 SWIPnet Swedish IP Network
5400 204 143 123 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
5515 179 795 150 Sonera Solution Autonomous Sy
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
5511 102 178 82 France Telecom
2647 97 4129 39 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 297 98 107 ImpSat
7303 237 37 61 Telecom Argentina Stet-France
8151 215 350 117 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 130 189 93 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 88 8 37 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 67 5 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
15034 62 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1001 773 Southwestern Bell Internet Se
18566 599 591 Covad Communications
11305 647 575 Interland Incorporated
7843 613 438 Adelphia Corp.
3908 912 435 Supernet, Inc.
4323 602 427 Time Warner Communications, I
7018 1336 415 AT&T
189 683 387 Genuity
4755 419 352 Videsh Sanchar Nigam Ltd. Aut
1221 1068 307 Telstra Pty Ltd
6197 502 305 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
4355 398 294 EarthLink, Inc.
6198 468 290 BellSouth Network Solutions,
6347 368 288 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 953 282 Sprint
376 383 267 Reseau Interordinateurs Scien
22909 276 264 Comcast Cable Corporation
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
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
192.153.136.0/21 568 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 /8:20 /9:5 /10:8 /11:13 /12:53
/13:99 /14:256 /15:470 /16:7427 /17:1704 /18:3005
/19:8484 /20:8591 /21:6161 /22:9072 /23:10639 /24:69552
/25:157 /26:260 /27:56 /28:43 /29:26 /30:22
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 606 683 Genuity
18566 593 599 Covad Communications
11305 573 647 Interland Incorporated
3908 571 912 Supernet, Inc.
7018 468 1336 AT&T
702 456 748 UUNET - Commercial IP service
701 432 1545 UUNET Technologies, Inc.
690 401 443 Merit Network
7066 384 487 Virginia Polytechnic Institut
6197 374 502 BellSouth Network Solutions,
7843 372 613 Adelphia Corp.
6198 365 468 BellSouth Network Solutions,
1239 357 953 Sprint
20115 323 462 Charter Communications
27364 313 319 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
19262 228 269 Verizon Global Networks
1 223 614 GENUITY
4355 217 398 EarthLink, Inc.
3320 207 265 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:704 13:1 15:6 16:1 17:3
20:7 24:857 25:1 32:95 38:41 40:21
44:2 57:17 61:257 62:353 63:1871 64:1938
65:1970 66:2578 67:178 68:376 69:178 80:360
81:116 128:141 129:173 130:47 131:81 132:26
134:174 135:3 136:116 137:107 138:108 139:64
140:183 141:123 142:94 143:43 144:104 145:14
146:273 147:97 148:290 149:60 150:44 151:70
152:231 153:60 154:7 155:116 156:53 157:45
158:127 159:140 160:43 161:75 162:130 163:78
164:314 165:142 166:95 167:320 168:408 169:62
170:315 171:8 192:5328 193:2450 194:1952 195:1048
196:478 198:3595 199:2715 200:3018 202:3824 203:5247
204:3010 205:2054 206:2339 207:2443 208:2593 209:2903
210:828 211:353 212:958 213:817 214:19 215:23
216:3561 217:626 218:91 219:44 220:95 221:3
End of report
