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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 24 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/24/0400
Analysis Summary
----------------
BGP routing table entries examined: 226244
Prefixes after maximum aggregation: 118961
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109981
Total ASes present in the Internet Routing Table: 25745
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22437
Origin ASes announcing only one prefix: 10929
Transit ASes present in the Internet Routing Table: 3308
Transit-only ASes present in the Internet Routing Table: 77
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: 19
Unregistered ASNs in the Routing Table: 22
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1739162720
Equivalent to 103 /8s, 169 /16s and 132 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 119142
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53044
Total APNIC prefixes after maximum aggregation: 20701
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 49982
Unique aggregates announced from the APNIC address blocks: 21990
APNIC Region origin ASes present in the Internet Routing Table: 3017
APNIC Prefixes per ASN: 16.57
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 458
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 305032352
Equivalent to 18 /8s, 46 /16s and 108 /24s
Percentage of available APNIC address space announced: 75.6
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: 107464
Total ARIN prefixes after maximum aggregation: 62400
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79097
Unique aggregates announced from the ARIN address blocks: 31348
ARIN Region origin ASes present in the Internet Routing Table: 11692
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4507
ARIN Region transit ASes present in the Internet Routing Table: 1070
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339656192
Equivalent to 20 /8s, 62 /16s and 190 /24s
Percentage of available ARIN address space announced: 75.0
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: 47526
Total RIPE prefixes after maximum aggregation: 30519
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43894
Unique aggregates announced from the RIPE address blocks: 28940
RIPE Region origin ASes present in the Internet Routing Table: 9929
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5285
RIPE Region transit ASes present in the Internet Routing Table: 1570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 322756480
Equivalent to 19 /8s, 60 /16s and 223 /24s
Percentage of available RIPE address space announced: 80.2
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15609
Total LACNIC prefixes after maximum aggregation: 4299
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13638
Unique aggregates announced from the LACNIC address blocks: 7738
LACNIC Region origin ASes present in the Internet Routing Table: 830
LACNIC Prefixes per ASN: 16.43
LACNIC Region origin ASes announcing only one prefix: 269
LACNIC Region transit ASes present in the Internet Routing Table: 138
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40741120
Equivalent to 2 /8s, 109 /16s and 169 /24s
Percentage of available LACNIC address space announced: 60.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2593
Total AfriNIC prefixes after maximum aggregation: 1034
AfriNIC Deaggregation factor: 2.51
Prefixes being announced from the AfriNIC address blocks: 2115
Unique aggregates announced from the AfriNIC address blocks: 1278
AfriNIC Region origin ASes present in the Internet Routing Table: 199
AfriNIC Prefixes per ASN: 10.63
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6364160
Equivalent to 0 /8s, 97 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 19.0
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
4134 1360 10826 287 CHINANET-BACKBONE
4755 1278 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1120 80 402 Sify Limited
9498 989 533 70 BHARTI BT INTERNET LTD.
23577 795 34 691 Korea Telecom (ATM-MPLS)
4766 787 4929 314 Korea Telecom (KIX)
17488 730 48 59 Hathway IP Over Cable Interne
7545 693 150 113 TPG Internet Pty Ltd
18101 573 117 41 Reliance Infocom Ltd Internet
1221 548 1951 426 Telstra Pty Ltd
4812 528 913 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 472 122 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 411 105 151 Wantree Development
17974 372 130 13 PT TELEKOMUNIKASI INDONESIA
9829 361 258 14 BSNL National Internet Backbo
4808 360 669 120 CNCGROUP IP network: China169
4837 351 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6074 990 AT&T WorldNet Services
4323 1321 1021 374 Time Warner Telecom
2386 1209 633 754 AT&T Data Communications Serv
6478 1117 316 157 AT&T Worldnet Services
11492 1102 107 24 Cable One
6197 1025 717 508 BellSouth Network Solutions,
18566 1015 288 9 Covad Communications
174 964 6778 854 Cogent Communications
701 945 6563 722 UUNET Technologies, Inc.
7011 899 257 543 Citizens Utilities
1239 812 2741 584 Sprint
20115 799 733 433 Charter Communications
19262 762 2760 187 Verizon Global Networks
209 748 3878 593 Qwest
22773 743 1892 48 Cox Communications, Inc.
5668 618 169 21 CenturyTel Internet Holdings,
7029 585 488 79 Alltel Information Services,
855 574 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
6517 568 159 37 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 359 56 41 LINKdotNET AS number
9116 317 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 282 129 258 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
8220 257 445 241 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 251 420 240 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 221 2775 73 TELECOM ITALIA
3352 221 1862 40 Ibernet, Internet Access Netw
9121 212 1441 24 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
12479 190 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 863 1926 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 374 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
6471 308 74 33 ENTEL CHILE S.A.
7303 306 148 35 Telecom Argentina Stet-France
14117 279 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 214 60 18 TVCABLE BOGOTA
6503 208 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 177 28 7 SatNet S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 158 506 23 Telecomunicacoes da Bahia S.A
20299 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
19169 156 10 22 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 281 867 222 The Internet Solution
8452 225 188 7 TEDATA
6713 140 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 124 8 12 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 75 174 72 The Internetworking Company o
15475 75 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 45 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1278 1207 Videsh Sanchar Nigam Ltd. Aut
11492 1102 1078 Cable One
4134 1360 1073 CHINANET-BACKBONE
18566 1015 1006 Covad Communications
6478 1117 960 AT&T Worldnet Services
4323 1321 947 Time Warner Telecom
9498 989 919 BHARTI BT INTERNET LTD.
9583 1120 718 Sify Limited
22773 743 695 Cox Communications, Inc.
17488 730 671 Hathway IP Over Cable Interne
8151 863 658 UniNet S.A. de C.V.
5668 618 597 CenturyTel Internet Holdings,
7545 693 580 TPG Internet Pty Ltd
19262 762 575 Verizon Global Networks
18101 573 532 Reliance Infocom Ltd Internet
6517 568 531 Yipes Communications, Inc.
15270 557 520 PaeTec.net -a division of Pae
6197 1025 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 585 506 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 41.204.180.0/24 36866 Jamii Telecommunicat
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
43345 UNALLOCATED 78.40.40.0/24 702 UUNET - Commercial I
43314 UNALLOCATED 78.109.128.0/20 21127 JSC Zap-Sib TransTel
43157 UNALLOCATED 83.143.224.0/21 174 Cogent Communication
43067 UNALLOCATED 91.196.80.0/22 31305 Kriviy Rih City netw
43319 UNALLOCATED 91.197.8.0/22 12452 VSTN AS
43348 UNALLOCATED 91.197.24.0/22 29632 The NetAssist autono
43359 UNALLOCATED 91.197.36.0/22 25441 Irish Broadband Inte
43164 UNALLOCATED 91.198.0.0/24 16016 VOLJATEL Autonomous
43212 UNALLOCATED 91.198.19.0/24 21294 SC Idilis S.A.
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
42752 UNALLOCATED 194.110.150.0/24 9121 TTnet Autonomous Sys
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64516 PRIVATE 209.43.37.0/24 7332 IQuest Internet
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
172.33.1.0/24 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 /8:18 /9:9 /10:15 /11:36 /12:129
/13:254 /14:468 /15:900 /16:9558 /17:4018 /18:6506
/19:13754 /20:16028 /21:14525 /22:18892 /23:19835 /24:118987
/25:746 /26:1002 /27:481 /28:70 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1116 1117 AT&T Worldnet Services
11492 1093 1102 Cable One
18566 997 1015 Covad Communications
9583 962 1120 Sify Limited
2386 901 1209 AT&T Data Communications Serv
7011 797 899 Citizens Utilities
7018 797 1464 AT&T WorldNet Services
23577 786 795 Korea Telecom (ATM-MPLS)
6197 779 1025 BellSouth Network Solutions,
4755 675 1278 Videsh Sanchar Nigam Ltd. Aut
9498 662 989 BHARTI BT INTERNET LTD.
4766 591 787 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 554 1321 Time Warner Telecom
17488 553 730 Hathway IP Over Cable Interne
6517 533 568 Yipes Communications, Inc.
15270 522 557 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 485 573 Reliance Infocom Ltd Internet
5668 484 618 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1808 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:336 40:60 41:216 44:2
47:4 52:4 55:3 56:3 57:25 58:472
59:379 60:335 61:992 62:879 63:1987 64:3129
65:2371 66:3301 67:745 68:626 69:1913 70:437
71:101 72:1354 73:2 74:579 75:253 76:80
77:288 78:22 80:826 81:816 82:673 83:376
84:540 85:858 86:342 87:454 88:288 89:925
90:8 91:426 97:6 98:3 116:252 117:64
121:240 122:586 123:129 124:882 125:957 128:288
129:223 130:139 131:362 132:54 133:9 134:194
135:37 136:186 137:81 138:156 139:72 140:495
141:173 142:373 143:235 144:293 145:45 146:324
147:119 148:402 149:141 150:113 151:161 152:90
153:125 154:2 155:256 156:157 157:212 158:158
159:165 160:104 161:94 162:209 163:180 164:461
165:399 166:286 167:290 168:509 169:120 170:414
171:23 172:1 189:63 190:750 192:5739 193:3925
194:3164 195:2235 196:956 198:3793 199:3277 200:4956
201:1106 202:7386 203:7561 204:3962 205:2014 206:2414
207:2823 208:2714 209:3488 210:2433 211:970 212:1300
213:1477 214:414 215:41 216:3998 217:1158 218:360
219:385 220:1006 221:409 222:265
End of report
