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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 26 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127487
Prefixes after maximum aggregation: 79979
Unique aggregates announced to Internet: 59649
Total ASes present in the Internet Routing Table: 15437
Origin-only ASes present in the Internet Routing Table: 13375
Origin ASes announcing only one prefix: 6057
Transit ASes present in the Internet Routing Table: 2062
Transit-only ASes present in the Internet Routing Table: 68
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1252003296
Equivalent to 74 /8s, 160 /16s and 13 /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: 55656
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21615
Total APNIC prefixes after maximum aggregation: 12601
Prefixes being announced from the APNIC address blocks: 20051
Unique aggregates announced from the APNIC address blocks: 12254
APNIC Region origin ASes present in the Internet Routing Table: 1825
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 299
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 116049184
Equivalent to 6 /8s, 234 /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: 78683
Total ARIN prefixes after maximum aggregation: 49063
Prefixes being announced from the ARIN address blocks: 56503
Unique aggregates announced from the ARIN address blocks: 16492
ARIN Region origin ASes present in the Internet Routing Table: 8532
ARIN Region origin ASes announcing only one prefix: 2895
ARIN Region transit ASes present in the Internet Routing Table: 826
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193423616
Equivalent to 11 /8s, 135 /16s and 105 /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: 21830
Total RIPE prefixes after maximum aggregation: 16062
Prefixes being announced from the RIPE address blocks: 18337
Unique aggregates announced from the RIPE address blocks: 12304
RIPE Region origin ASes present in the Internet Routing Table: 4674
RIPE Region origin ASes announcing only one prefix: 2551
RIPE Region transit ASes present in the Internet Routing Table: 839
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132466752
Equivalent to 7 /8s, 229 /16s and 72 /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: 5358
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 4785
Unique aggregates announced from the LACNIC address blocks: 3004
LACNIC Region origin ASes present in the Internet Routing Table: 337
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12784896
Equivalent to 0 /8s, 195 /16s and 21 /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 1050 1069 747 Telstra Pty Ltd
4755 399 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 373 1895 349 SINET Japan
17557 345 24 152 Pakistan Telecom
703 337 371 269 UUNET
2764 305 325 272 connect.com.au pty ltd
7474 271 307 204 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 230 37 19 Satyam Infoway Ltd.,
4134 226 1915 112 Data Communications Bureau
4766 212 2475 159 Korea Internet Exchange for "
9800 186 302 61 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 163 11 28 BHARTI BT INTERNET LTD.
9929 153 169 34 China Netcom Corp.
4739 140 58 128 Commerical Internet eXchange
9238 136 8 19 TATA ISP
4716 128 745 122 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 1540 8848 1085 UUNET Technologies, Inc.
7018 1339 7182 924 AT&T
1239 959 3021 675 Sprint
3908 906 1532 477 Supernet, Inc.
7132 862 6573 229 Southwestern Bell Internet Se
189 684 340 296 Genuity
11305 649 170 72 Interland Incorporated
7843 632 360 162 Adelphia Corp.
1 613 2602 414 GENUITY
18566 604 160 8 Covad Communications
4323 603 526 176 Time Warner Communications, I
852 528 1124 417 Telus Advanced Communications
6197 519 350 215 BellSouth Network Solutions,
705 512 271 333 UUNET Technologies, Inc.
209 495 2109 300 Qwest
7066 488 204 261 Virginia Polytechnic Institut
6198 474 263 185 BellSouth Network Solutions,
20115 463 194 284 Charter Communications
690 448 64 294 Merit Network
2386 409 542 231 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 748 2170 632 UUNET - Commercial IP service
3301 302 1171 289 TeliaNet Sweden
3320 267 2004 228 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 256 834 147 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 230 385 218 COLT Internet - International
1257 227 312 189 SWIPnet Swedish IP Network
5400 204 143 123 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 178 1874 178 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 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 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 296 98 107 ImpSat
7303 237 37 53 Telecom Argentina Stet-France
8151 214 350 116 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 132 189 95 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 109 3 37 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 87 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
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
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 862 633 Southwestern Bell Internet Se
18566 604 596 Covad Communications
11305 649 577 Interland Incorporated
7843 632 470 Adelphia Corp.
3908 906 429 Supernet, Inc.
4323 603 427 Time Warner Communications, I
7018 1339 415 AT&T
189 684 388 Genuity
4755 399 339 Videsh Sanchar Nigam Ltd. Aut
6197 519 304 BellSouth Network Solutions,
1221 1050 303 Telstra Pty Ltd
27364 319 301 Armstrong Cable Services
4355 396 293 EarthLink, Inc.
6198 474 289 BellSouth Network Solutions,
1239 959 284 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
376 381 253 Reseau Interordinateurs Scien
17676 250 231 XTAGE CORPORATION
7066 488 227 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
5555 UNALLOCATED 192.156.41.0/24 721 DLA Systems Automati
5555 UNALLOCATED 204.223.88.0/22 3475 Department of the Na
5555 UNALLOCATED 205.109.128.0/19 721 DLA Systems Automati
5555 UNALLOCATED 205.109.208.0/20 721 DLA Systems Automati
5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati
5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati
5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati
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
192.172.11.0/24 1481 US DOD NIC Unregistered
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
/13:98 /14:256 /15:469 /16:7428 /17:1711 /18:3029
/19:8508 /20:8539 /21:6226 /22:9135 /23:10694 /24:70713
/25:156 /26:252 /27:59 /28:42 /29:25 /30:21
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 607 684 Genuity
18566 598 604 Covad Communications
11305 575 649 Interland Incorporated
3908 572 906 Supernet, Inc.
7018 469 1339 AT&T
702 460 748 UUNET - Commercial IP service
701 432 1540 UUNET Technologies, Inc.
690 406 448 Merit Network
6197 391 519 BellSouth Network Solutions,
7843 390 632 Adelphia Corp.
7066 384 488 Virginia Polytechnic Institut
6198 368 474 BellSouth Network Solutions,
1239 360 959 Sprint
20115 323 463 Charter Communications
27364 313 319 Armstrong Cable Services
19262 230 271 Verizon Global Networks
1 223 613 GENUITY
4355 216 396 EarthLink, Inc.
3320 208 267 Deutsche Telekom AG
705 207 512 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 24:877 25:1 32:95 38:40 40:21
44:2 57:17 61:257 62:366 63:1881 64:1952
65:1961 66:2594 67:179 68:380 69:172 80:362
81:127 82:3 128:190 129:172 130:47 131:80
132:26 134:173 135:4 136:116 137:107 138:110
139:64 140:169 141:123 142:91 143:44 144:105
145:13 146:276 147:96 148:289 149:62 150:74
151:69 152:233 153:61 154:7 155:117 156:57
157:45 158:123 159:139 160:45 161:75 162:131
163:81 164:314 165:140 166:95 167:320 168:173
169:78 170:318 171:8 192:5483 193:2463 194:1959
195:1075 196:477 198:3594 199:3162 200:2934 202:3860
203:5239 204:3276 205:2301 206:2341 207:2431 208:2604
209:2881 210:845 211:353 212:965 213:831 214:147
215:23 216:3525 217:641 218:91 219:47 220:95
221:3
End of report
