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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 08 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/08/0400
Analysis Summary
----------------
BGP routing table entries examined: 233843
Prefixes after maximum aggregation: 121304
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113833
Total ASes present in the Internet Routing Table: 26378
Prefixes per ASN: 8.87
Origin-only ASes present in the Internet Routing Table: 22940
Origin ASes announcing only one prefix: 11192
Transit ASes present in the Internet Routing Table: 3438
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1790221472
Equivalent to 106 /8s, 180 /16s and 156 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 108064
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54790
Total APNIC prefixes after maximum aggregation: 21049
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51717
Unique aggregates announced from the APNIC address blocks: 22917
APNIC Region origin ASes present in the Internet Routing Table: 3068
APNIC Prefixes per ASN: 16.86
APNIC Region origin ASes announcing only one prefix: 814
APNIC Region transit ASes present in the Internet Routing Table: 472
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320993504
Equivalent to 19 /8s, 33 /16s and 248 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 116/6, 120/6, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 110142
Total ARIN prefixes after maximum aggregation: 63302
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81300
Unique aggregates announced from the ARIN address blocks: 32181
ARIN Region origin ASes present in the Internet Routing Table: 11864
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4565
ARIN Region transit ASes present in the Internet Routing Table: 1103
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 346954368
Equivalent to 20 /8s, 174 /16s and 26 /24s
Percentage of available ARIN address space announced: 76.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 49069
Total RIPE prefixes after maximum aggregation: 31398
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45519
Unique aggregates announced from the RIPE address blocks: 30027
RIPE Region origin ASes present in the Internet Routing Table: 10291
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5466
RIPE Region transit ASes present in the Internet Routing Table: 1639
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 330077568
Equivalent to 19 /8s, 172 /16s and 149 /24s
Percentage of available RIPE address space announced: 75.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17108
Total LACNIC prefixes after maximum aggregation: 4508
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15215
Unique aggregates announced from the LACNIC address blocks: 8467
LACNIC Region origin ASes present in the Internet Routing Table: 870
LACNIC Prefixes per ASN: 17.49
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43895040
Equivalent to 2 /8s, 157 /16s and 201 /24s
Percentage of available LACNIC address space announced: 43.6
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2698
Total AfriNIC prefixes after maximum aggregation: 1033
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2285
Unique aggregates announced from the AfriNIC address blocks: 1382
AfriNIC Region origin ASes present in the Internet Routing Table: 208
AfriNIC Prefixes per ASN: 10.99
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7529728
Equivalent to 0 /8s, 114 /16s and 229 /24s
Percentage of available AfriNIC address space announced: 22.4
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4755 1436 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1128 81 411 Sify Limited
4134 1097 11500 298 CHINANET-BACKBONE
9498 1005 533 67 BHARTI BT INTERNET LTD.
17488 824 53 65 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
23577 795 34 688 Korea Telecom (ATM-MPLS)
7545 733 159 119 TPG Internet Pty Ltd
18101 605 119 50 Reliance Infocom Ltd Internet
4802 576 132 147 Wantree Development
4812 549 978 95 China Telecom (Shanghai)
1221 539 1950 419 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 493 792 119 CNCGROUP IP network: China169
9443 465 122 76 Primus Telecommunications
7474 381 218 268 SingTel Optus Pty Ltd
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
17557 359 57 183 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6146 988 AT&T WorldNet Services
4323 1402 1007 364 Time Warner Telecom
2386 1220 636 737 AT&T Data Communications Serv
11492 1154 113 13 Cable One
6478 1125 329 141 AT&T Worldnet Services
6197 1030 718 509 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 968 6779 844 Cogent Communications
7011 944 287 559 Citizens Utilities
701 876 6574 682 UUNET Technologies, Inc.
20115 833 762 447 Charter Communications
1239 801 2720 561 Sprint
22773 791 2133 54 Cox Communications, Inc.
19262 783 2829 186 Verizon Global Networks
209 738 3817 583 Qwest
3356 682 10820 372 Level 3 Communications, LLC
5668 655 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
852 581 1093 358 Telus Advanced Communications
15270 581 161 39 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 475 1920 387 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 342 168 27 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
8551 295 283 41 Bezeq International
6746 292 131 268 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 264 421 242 Romania Data Systems S.A.
8866 263 62 22 Bulgarian Telecommunication C
3215 262 2480 100 France Telecom Transpac
8220 254 444 237 COLT Telecommunications
3352 231 1898 40 Ibernet, Internet Access Netw
3269 223 2839 73 TELECOM ITALIA
9121 216 1442 25 TTnet Autonomous System
3300 197 172 96 AUCS Communications Services
3292 195 1380 177 TDC Tele Danmark
1257 194 1195 171 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
3246 188 251 178 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1055 2211 213 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 378 114 60 Servicios Alestra S.A de C.V
7303 347 168 45 Telecom Argentina Stet-France
14522 345 29 8 SatNet S.A.
6471 342 75 35 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 283 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
10620 253 70 27 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 229 178 24 Telefonica Del Peru
23216 208 17 45 RAMtelecom Telecomunicaciones
6503 207 170 82 AVANTEL, S.A.
8163 179 11 8 METROTEL REDES S.A.
19169 178 12 19 Telconet
20299 178 25 29 NEWCOM AMERICAS
21826 178 31 49 INTERCABLE
28573 175 280 20 NET Servicos de Comunicao S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 869 225 The Internet Solution
8452 215 188 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 126 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 78 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 55 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 27 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1436 1369 Videsh Sanchar Nigam Ltd. Aut
11492 1154 1141 Cable One
4323 1402 1038 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1125 984 AT&T Worldnet Services
9498 1005 938 BHARTI BT INTERNET LTD.
8151 1055 842 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 824 759 Hathway IP Over Cable Interne
22773 791 737 Cox Communications, Inc.
9583 1128 717 Sify Limited
5668 655 632 CenturyTel Internet Holdings,
7545 733 614 TPG Internet Pty Ltd
19262 783 597 Verizon Global Networks
18101 605 555 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 581 542 PaeTec.net -a division of Pae
6197 1030 521 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
65010 PRIVATE 83.174.240.0/20 28812 BashInformSvyaz Auto
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
64631 PRIVATE 199.242.73.0/24 22472 Florida Supreme Cour
64631 PRIVATE 199.242.74.0/24 22472 Florida Supreme Cour
64631 PRIVATE 199.242.94.0/24 22472 Florida Supreme Cour
64631 PRIVATE 199.242.96.0/24 22472 Florida Supreme Cour
64631 PRIVATE 199.242.109.0/24 8103 Florida Department o
64631 PRIVATE 199.242.111.0/24 22472 Florida Supreme Cour
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.11.12.0/24 1803 SPRINT
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:9 /10:16 /11:37 /12:136
/13:265 /14:476 /15:936 /16:9646 /17:4103 /18:6677
/19:14272 /20:16518 /21:15286 /22:19590 /23:20456 /24:122952
/25:771 /26:1037 /27:544 /28:84 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1146 1154 Cable One
6478 1124 1125 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 970 1128 Sify Limited
2386 913 1220 AT&T Data Communications Serv
7011 832 944 Citizens Utilities
7018 813 1474 AT&T WorldNet Services
4755 805 1436 Videsh Sanchar Nigam Ltd. Aut
23577 786 795 Korea Telecom (ATM-MPLS)
6197 774 1030 BellSouth Network Solutions,
9498 689 1005 BHARTI BT INTERNET LTD.
17488 643 824 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 596 1402 Time Warner Telecom
19916 563 568 OLM LLC
15270 544 581 PaeTec.net -a division of Pae
6517 542 587 Yipes Communications, Inc.
5668 518 655 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 505 605 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:90 12:1788 13:1 15:20 16:3
17:3 18:13 20:36 24:978 25:1 32:60
33:3 38:350 40:61 41:324 44:2 47:4
52:4 55:3 56:3 57:23 58:474 59:409
60:375 61:996 62:903 63:1989 64:3249 65:2367
66:3546 67:826 68:677 69:1979 70:456 71:107
72:1418 73:5 74:697 75:260 76:138 77:386
78:213 80:836 81:799 82:572 83:363 84:615
85:835 86:346 87:582 88:287 89:1004 90:37
91:594 97:6 98:3 101:1 116:380 117:193
118:38 121:315 122:612 123:191 124:686 125:1011
128:272 129:201 130:137 131:364 132:55 133:9
134:195 135:34 136:188 137:83 138:155 139:72
140:512 141:174 142:370 143:253 144:314 145:46
146:335 147:125 148:425 149:185 150:111 151:156
152:89 153:121 154:11 155:257 156:161 157:220
158:160 159:200 160:136 161:98 162:173 163:182
164:487 165:393 166:286 167:303 168:496 169:124
170:399 171:22 172:3 189:92 190:1114 192:5716
193:3963 194:3205 195:2473 196:959 198:3806 199:3215
200:5231 201:1234 202:7377 203:7892 204:3949 205:2025
206:2425 207:2806 208:2883 209:3480 210:2462 211:1071
212:1309 213:1491 214:417 215:45 216:4076 217:1206
218:320 219:381 220:1007 221:413 222:263
End of report
