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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 11 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125775
Prefixes after maximum aggregation: 78921
Unique aggregates announced to Internet: 59159
Total ASes present in the Internet Routing Table: 15303
Origin-only ASes present in the Internet Routing Table: 13268
Origin ASes announcing only one prefix: 6008
Transit ASes present in the Internet Routing Table: 2035
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1250879808
Equivalent to 74 /8s, 142 /16s and 233 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55428
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21426
Total APNIC prefixes after maximum aggregation: 12569
Prefixes being announced from the APNIC address blocks: 19830
Unique aggregates announced from the APNIC address blocks: 12047
APNIC Region origin ASes present in the Internet Routing Table: 1809
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 114662560
Equivalent to 6 /8s, 213 /16s and 156 /24s
Percentage of available APNIC address space announced: 61.8
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: 77383
Total ARIN prefixes after maximum aggregation: 48151
Prefixes being announced from the ARIN address blocks: 55434
Unique aggregates announced from the ARIN address blocks: 16416
ARIN Region origin ASes present in the Internet Routing Table: 8462
ARIN Region origin ASes announcing only one prefix: 2889
ARIN Region transit ASes present in the Internet Routing Table: 814
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192636928
Equivalent to 11 /8s, 123 /16s and 104 /24s
Percentage of available ARIN address space announced: 71.8
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: 21589
Total RIPE prefixes after maximum aggregation: 15961
Prefixes being announced from the RIPE address blocks: 18066
Unique aggregates announced from the RIPE address blocks: 12175
RIPE Region origin ASes present in the Internet Routing Table: 4628
RIPE Region origin ASes announcing only one prefix: 2517
RIPE Region transit ASes present in the Internet Routing Table: 824
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 131968000
Equivalent to 7 /8s, 221 /16s and 172 /24s
Percentage of available RIPE address space announced: 71.5
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: 5369
Total LACNIC prefixes after maximum aggregation: 2240
Prefixes being announced from the LACNIC address blocks: 4777
Unique aggregates announced from the LACNIC address blocks: 2976
LACNIC Region origin ASes present in the Internet Routing Table: 333
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: 25
Number of LACNIC addresses announced to Internet: 12684288
Equivalent to 0 /8s, 193 /16s and 140 /24s
Percentage of available LACNIC address space announced: 37.8
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 1072 1103 764 Telstra Pty Ltd
4755 416 133 69 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 349 25 147 Pakistan Telecom
703 343 371 272 UUNET
2764 314 341 280 connect.com.au pty ltd
7474 271 306 205 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 241 2067 120 Data Communications Bureau
9583 224 35 19 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9443 182 58 82 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
9498 150 10 23 BHARTI BT INTERNET LTD.
4739 138 57 126 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 129 156 103 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
9768 126 384 60 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1546 8913 1091 UUNET Technologies, Inc.
7018 1333 7194 923 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 951 3018 669 Sprint
3908 917 1549 481 Supernet, Inc.
189 702 341 293 Genuity
11305 647 170 72 Interland Incorporated
7843 627 358 172 Adelphia Corp.
1 623 2603 419 GENUITY
4323 595 521 172 Time Warner Communications, I
18566 593 160 8 Covad Communications
852 525 1123 415 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
209 496 2106 301 Qwest
6197 492 343 195 BellSouth Network Solutions,
7066 484 204 259 Virginia Polytechnic Institut
6198 466 230 177 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 452 66 296 Merit Network
2386 441 522 245 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 747 2172 633 UUNET - Commercial IP service
3301 303 1171 290 TeliaNet Sweden
3215 295 880 168 France Telecom Transpac
3320 265 2004 227 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 224 315 186 SWIPnet Swedish IP Network
8220 223 384 211 COLT Internet - International
5400 222 139 131 BT Ignite European Backbone
719 216 307 125 LANLINK autonomous system
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 123 1315 113 BTnet UK Regional network
3246 118 366 114 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
2647 98 4129 39 SITA
5511 95 177 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 294 98 109 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 129 189 92 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 90 9 34 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 82 9 16 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
11830 66 4 27 Instituto Costarricense de El
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
15034 62 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1015 788 Southwestern Bell Internet Se
18566 593 585 Covad Communications
11305 647 575 Interland Incorporated
7843 627 455 Adelphia Corp.
3908 917 436 Supernet, Inc.
4323 595 423 Time Warner Communications, I
7018 1333 410 AT&T
189 702 409 Genuity
4755 416 347 Videsh Sanchar Nigam Ltd. Aut
1221 1072 308 Telstra Pty Ltd
6197 492 297 BellSouth Network Solutions,
4355 402 294 EarthLink, Inc.
27364 311 293 Armstrong Cable Services
6198 466 289 BellSouth Network Solutions,
6347 365 286 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 951 282 Sprint
376 384 268 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
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64811 PRIVATE 211.154.136.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.138.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.152.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.154.0/23 4813 China Telecom(Group)
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 /12:52
/13:99 /14:256 /15:469 /16:7428 /17:1688 /18:2994
/19:8468 /20:8537 /21:6112 /22:9068 /23:10659 /24:69356
/25:158 /26:215 /27:57 /28:40 /29:26 /30:22
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 625 702 Genuity
18566 587 593 Covad Communications
3908 573 917 Supernet, Inc.
11305 573 647 Interland Incorporated
7018 465 1333 AT&T
702 457 747 UUNET - Commercial IP service
701 431 1546 UUNET Technologies, Inc.
690 410 452 Merit Network
7843 388 627 Adelphia Corp.
7066 381 484 Virginia Polytechnic Institut
6197 368 492 BellSouth Network Solutions,
6198 364 466 BellSouth Network Solutions,
1239 359 951 Sprint
20115 323 462 Charter Communications
27364 305 311 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
1 231 623 GENUITY
2386 221 441 AT&T Data Communications Serv
19262 221 257 Verizon Global Networks
3215 219 295 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:706 13:1 15:4 16:1 17:3
20:8 24:853 25:1 32:87 38:60 40:21
44:2 57:17 61:280 62:341 63:1873 64:1934
65:1964 66:2576 67:178 68:381 69:185 80:358
81:126 128:140 129:176 130:47 131:80 132:26
134:174 135:4 136:116 137:107 138:110 139:64
140:206 141:122 142:94 143:43 144:105 145:14
146:275 147:97 148:288 149:61 150:44 151:70
152:231 153:59 154:3 155:116 156:54 157:38
158:127 159:136 160:43 161:75 162:130 163:77
164:311 165:143 166:93 167:319 168:408 169:61
170:312 171:8 192:5333 193:2442 194:1948 195:1047
196:471 198:3557 199:2720 200:2969 202:3730 203:5279
204:2998 205:2045 206:2374 207:2417 208:2604 209:2893
210:818 211:331 212:978 213:793 214:20 215:24
216:3530 217:629 218:92 219:44 220:98 221:3
End of report
