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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 09 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/09/0400
Analysis Summary
----------------
BGP routing table entries examined: 233898
Prefixes after maximum aggregation: 121342
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113938
Total ASes present in the Internet Routing Table: 26393
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 22969
Origin ASes announcing only one prefix: 11196
Transit ASes present in the Internet Routing Table: 3424
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 27
Unregistered ASNs in the Routing Table: 6
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: 1790115232
Equivalent to 106 /8s, 178 /16s and 253 /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: 108141
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54802
Total APNIC prefixes after maximum aggregation: 21066
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51733
Unique aggregates announced from the APNIC address blocks: 22962
APNIC Region origin ASes present in the Internet Routing Table: 3066
APNIC Prefixes per ASN: 16.87
APNIC Region origin ASes announcing only one prefix: 813
APNIC Region transit ASes present in the Internet Routing Table: 467
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320985568
Equivalent to 19 /8s, 33 /16s and 217 /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: 110152
Total ARIN prefixes after maximum aggregation: 63300
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81307
Unique aggregates announced from the ARIN address blocks: 32192
ARIN Region origin ASes present in the Internet Routing Table: 11867
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4561
ARIN Region transit ASes present in the Internet Routing Table: 1102
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 346979456
Equivalent to 20 /8s, 174 /16s and 124 /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: 49113
Total RIPE prefixes after maximum aggregation: 31427
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45554
Unique aggregates announced from the RIPE address blocks: 30068
RIPE Region origin ASes present in the Internet Routing Table: 10301
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5474
RIPE Region transit ASes present in the Internet Routing Table: 1631
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 330006400
Equivalent to 19 /8s, 171 /16s and 127 /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: 17099
Total LACNIC prefixes after maximum aggregation: 4500
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15199
Unique aggregates announced from the LACNIC address blocks: 8485
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.45
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43954688
Equivalent to 2 /8s, 158 /16s and 178 /24s
Percentage of available LACNIC address space announced: 43.7
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: 2697
Total AfriNIC prefixes after maximum aggregation: 1035
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2298
Unique aggregates announced from the AfriNIC address blocks: 1376
AfriNIC Region origin ASes present in the Internet Routing Table: 208
AfriNIC Prefixes per ASN: 11.05
AfriNIC Region origin ASes announcing only one prefix: 68
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: 14
Number of AfriNIC addresses announced to Internet: 7536128
Equivalent to 0 /8s, 114 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 22.5
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 1125 81 422 Sify Limited
4134 1097 11500 298 CHINANET-BACKBONE
9498 1004 533 67 BHARTI BT INTERNET LTD.
17488 824 53 65 Hathway IP Over Cable Interne
4766 811 5442 321 Korea Telecom (KIX)
23577 793 34 686 Korea Telecom (ATM-MPLS)
7545 734 159 120 TPG Internet Pty Ltd
18101 602 119 49 Reliance Infocom Ltd Internet
4802 574 132 145 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
1221 540 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 492 792 119 CNCGROUP IP network: China169
9443 464 122 76 Primus Telecommunications
7474 381 218 268 SingTel Optus Pty Ltd
17557 370 58 187 Pakistan Telecom
4837 358 5136 169 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1472 6146 986 AT&T WorldNet Services
4323 1402 1007 364 Time Warner Telecom
2386 1230 636 741 AT&T Data Communications Serv
11492 1158 114 14 Cable One
6478 1125 329 141 AT&T Worldnet Services
6197 1030 718 512 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 968 6779 844 Cogent Communications
7011 957 289 554 Citizens Utilities
701 876 6574 682 UUNET Technologies, Inc.
20115 834 763 447 Charter Communications
1239 801 2720 561 Sprint
22773 792 2133 54 Cox Communications, Inc.
19262 783 2829 186 Verizon Global Networks
209 735 3826 583 Qwest
3356 682 10820 372 Level 3 Communications, LLC
5668 656 176 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
702 474 1920 387 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 341 168 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 293 131 269 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 256 444 238 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 1052 2195 212 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
14522 348 30 6 SatNet S.A.
7303 347 168 45 Telecom Argentina Stet-France
6471 343 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
6503 208 170 82 AVANTEL, S.A.
23216 208 17 45 RAMtelecom Telecomunicaciones
19169 181 12 22 Telconet
7738 179 538 24 Telecomunicacoes da Bahia S.A
8163 179 11 8 METROTEL REDES S.A.
20299 178 25 29 NEWCOM AMERICAS
21826 178 31 49 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 885 226 The Internet Solution
8452 209 188 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 77 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 1158 1144 Cable One
4323 1402 1038 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1125 984 AT&T Worldnet Services
9498 1004 937 BHARTI BT INTERNET LTD.
8151 1052 840 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 824 759 Hathway IP Over Cable Interne
22773 792 738 Cox Communications, Inc.
9583 1125 703 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 734 614 TPG Internet Pty Ltd
19262 783 597 Verizon Global Networks
18101 602 553 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 581 542 PaeTec.net -a division of Pae
9829 530 521 BSNL National Internet Backbo
6197 1030 518 BellSouth Network Solutions,
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
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 /14:475 /15:937 /16:9650 /17:4092 /18:6659
/19:14282 /20:16522 /21:15298 /22:19597 /23:20484 /24:122971
/25:772 /26:1031 /27:541 /28:92 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1150 1158 Cable One
6478 1124 1125 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 967 1125 Sify Limited
2386 918 1230 AT&T Data Communications Serv
7011 844 957 Citizens Utilities
7018 813 1472 AT&T WorldNet Services
4755 805 1436 Videsh Sanchar Nigam Ltd. Aut
23577 784 793 Korea Telecom (ATM-MPLS)
6197 774 1030 BellSouth Network Solutions,
9498 688 1004 BHARTI BT INTERNET LTD.
17488 643 824 Hathway IP Over Cable Interne
4766 609 811 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 518 656 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 505 602 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:90 12:1789 15:20 16:3 17:4
18:13 20:36 24:978 25:1 32:60 33:3
38:351 40:61 41:326 44:2 47:4 52:4
55:3 56:3 57:23 58:473 59:414 60:375
61:995 62:903 63:1989 64:3246 65:2370 66:3545
67:829 68:677 69:1982 70:458 71:107 72:1419
73:5 74:699 75:260 76:139 77:387 78:215
80:843 81:798 82:573 83:366 84:619 85:825
86:346 87:573 88:287 89:1012 90:37 91:600
97:6 98:3 101:1 116:375 117:194 118:38
121:318 122:613 123:196 124:687 125:1024 128:272
129:201 130:138 131:363 132:55 133:9 134:195
135:34 136:188 137:78 138:156 139:72 140:504
141:174 142:370 143:256 144:314 145:46 146:335
147:125 148:424 149:185 150:111 151:156 152:88
153:121 154:11 155:257 156:161 157:221 158:160
159:200 160:136 161:98 162:173 163:182 164:487
165:395 166:291 167:303 168:495 169:124 170:398
171:22 172:3 189:92 190:1114 192:5716 193:3963
194:3201 195:2474 196:962 198:3802 199:3227 200:5200
201:1232 202:7366 203:7895 204:3952 205:2023 206:2424
207:2806 208:2879 209:3477 210:2452 211:1087 212:1319
213:1491 214:419 215:45 216:4076 217:1205 218:320
219:383 220:1011 221:414 222:254
End of report
