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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 04 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/04/0400
Analysis Summary
----------------
BGP routing table entries examined: 233213
Prefixes after maximum aggregation: 121118
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113617
Total ASes present in the Internet Routing Table: 26332
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 22918
Origin ASes announcing only one prefix: 11187
Transit ASes present in the Internet Routing Table: 3414
Transit-only ASes present in the Internet Routing Table: 73
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: 20
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1789343328
Equivalent to 106 /8s, 167 /16s and 54 /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: 107825
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54487
Total APNIC prefixes after maximum aggregation: 20937
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51408
Unique aggregates announced from the APNIC address blocks: 22812
APNIC Region origin ASes present in the Internet Routing Table: 3038
APNIC Prefixes per ASN: 16.92
APNIC Region origin ASes announcing only one prefix: 801
APNIC Region transit ASes present in the Internet Routing Table: 469
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320795296
Equivalent to 19 /8s, 30 /16s and 242 /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: 110188
Total ARIN prefixes after maximum aggregation: 63303
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81281
Unique aggregates announced from the ARIN address blocks: 32191
ARIN Region origin ASes present in the Internet Routing Table: 11870
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4569
ARIN Region transit ASes present in the Internet Routing Table: 1097
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 346695296
Equivalent to 20 /8s, 170 /16s and 38 /24s
Percentage of available ARIN address space announced: 76.5
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: 48970
Total RIPE prefixes after maximum aggregation: 31353
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45436
Unique aggregates announced from the RIPE address blocks: 29996
RIPE Region origin ASes present in the Internet Routing Table: 10274
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5472
RIPE Region transit ASes present in the Internet Routing Table: 1627
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 329852032
Equivalent to 19 /8s, 169 /16s and 36 /24s
Percentage of available RIPE address space announced: 75.6
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: 16837
Total LACNIC prefixes after maximum aggregation: 4478
LACNIC Deaggregation factor: 3.76
Prefixes being announced from the LACNIC address blocks: 14942
Unique aggregates announced from the LACNIC address blocks: 8358
LACNIC Region origin ASes present in the Internet Routing Table: 869
LACNIC Prefixes per ASN: 17.19
LACNIC Region origin ASes announcing only one prefix: 276
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43674112
Equivalent to 2 /8s, 154 /16s and 106 /24s
Percentage of available LACNIC address space announced: 43.4
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: 2702
Total AfriNIC prefixes after maximum aggregation: 1031
AfriNIC Deaggregation factor: 2.62
Prefixes being announced from the AfriNIC address blocks: 2288
Unique aggregates announced from the AfriNIC address blocks: 1367
AfriNIC Region origin ASes present in the Internet Routing Table: 207
AfriNIC Prefixes per ASN: 11.05
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 7464704
Equivalent to 0 /8s, 113 /16s and 231 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1426 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1127 81 411 Sify Limited
4134 1097 11500 298 CHINANET-BACKBONE
9498 1003 533 66 BHARTI BT INTERNET LTD.
17488 823 53 65 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
23577 792 34 686 Korea Telecom (ATM-MPLS)
7545 733 159 118 TPG Internet Pty Ltd
18101 603 119 50 Reliance Infocom Ltd Internet
4802 576 132 147 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
1221 539 1950 420 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 466 122 77 Primus Telecommunications
7474 381 218 268 SingTel Optus Pty Ltd
4837 358 5136 169 chinanet IDC center beijing n
17974 358 130 13 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1478 6163 992 AT&T WorldNet Services
4323 1405 1007 366 Time Warner Telecom
2386 1223 636 735 AT&T Data Communications Serv
11492 1153 113 12 Cable One
6478 1133 330 130 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 969 6779 845 Cogent Communications
7011 944 287 559 Citizens Utilities
701 875 6573 682 UUNET Technologies, Inc.
20115 834 764 444 Charter Communications
1239 802 2720 562 Sprint
19262 794 2828 189 Verizon Global Networks
22773 777 2133 51 Cox Communications, Inc.
209 740 3818 585 Qwest
3356 683 10820 373 Level 3 Communications, LLC
5668 657 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
852 581 1093 359 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
702 476 1920 388 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 343 168 27 Goldenlines main autonomous s
3301 317 1457 294 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
8551 296 283 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 196 172 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 189 253 179 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1027 2157 215 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 349 168 46 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.
10481 261 104 9 Prima S.A.
10620 238 67 26 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 229 178 24 Telefonica Del Peru
6503 202 170 82 AVANTEL, S.A.
23216 197 17 45 RAMtelecom Telecomunicaciones
28573 181 280 20 NET Servicos de Comunicao S.A
20299 178 25 30 NEWCOM AMERICAS
21826 178 31 49 INTERCABLE
8163 177 11 6 METROTEL REDES S.A.
19169 177 12 19 Telconet
7738 170 506 23 Telecomunicacoes da Bahia 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 125 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 79 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 56 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 35 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 1426 1359 Videsh Sanchar Nigam Ltd. Aut
11492 1153 1141 Cable One
4323 1405 1039 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1133 1003 AT&T Worldnet Services
9498 1003 937 BHARTI BT INTERNET LTD.
8151 1027 812 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 823 758 Hathway IP Over Cable Interne
22773 777 726 Cox Communications, Inc.
9583 1127 716 Sify Limited
5668 657 634 CenturyTel Internet Holdings,
7545 733 615 TPG Internet Pty Ltd
19262 794 605 Verizon Global Networks
18101 603 553 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 581 542 PaeTec.net -a division of Pae
6197 1031 523 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
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
64520 PRIVATE 172.11.12.0/24 1803 SPRINT
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 64520 PRIVATE ASN
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 /15:935 /16:9633 /17:4096 /18:6677
/19:14211 /20:16468 /21:15204 /22:19625 /23:20447 /24:122505
/25:769 /26:1037 /27:543 /28:92 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1145 1153 Cable One
6478 1132 1133 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 969 1127 Sify Limited
2386 913 1223 AT&T Data Communications Serv
7011 832 944 Citizens Utilities
7018 815 1478 AT&T WorldNet Services
4755 797 1426 Videsh Sanchar Nigam Ltd. Aut
23577 783 792 Korea Telecom (ATM-MPLS)
6197 775 1031 BellSouth Network Solutions,
9498 682 1003 BHARTI BT INTERNET LTD.
17488 642 823 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 597 1405 Time Warner Telecom
19916 563 568 OLM LLC
15270 544 581 PaeTec.net -a division of Pae
6517 542 587 Yipes Communications, Inc.
5668 519 657 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 503 603 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:90 12:1785 13:1 15:20 16:3
17:3 18:13 20:36 24:974 25:1 32:60
33:3 38:352 40:61 41:324 44:2 47:4
52:4 55:3 56:3 57:23 58:472 59:410
60:376 61:994 62:926 63:1993 64:3257 65:2367
66:3543 67:841 68:674 69:1976 70:457 71:107
72:1421 73:5 74:687 75:260 76:134 77:386
78:207 80:833 81:794 82:572 83:362 84:622
85:834 86:345 87:568 88:291 89:1006 90:37
91:580 97:6 98:2 101:1 116:374 117:175
118:22 121:307 122:590 123:186 124:680 125:1008
128:272 129:210 130:137 131:363 132:54 133:9
134:195 135:34 136:188 137:83 138:156 139:74
140:514 141:174 142:371 143:263 144:312 145:47
146:335 147:124 148:426 149:186 150:111 151:156
152:89 153:121 154:11 155:256 156:161 157:217
158:160 159:177 160:136 161:98 162:173 163:181
164:487 165:395 166:287 167:303 168:500 169:124
170:396 171:22 172:3 189:74 190:1065 192:5722
193:3968 194:3202 195:2462 196:962 198:3822 199:3225
200:5131 201:1193 202:7288 203:7809 204:3950 205:2024
206:2425 207:2838 208:2875 209:3477 210:2460 211:1088
212:1298 213:1486 214:423 215:44 216:4068 217:1196
218:319 219:381 220:1003 221:413 222:262
End of report
