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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 01 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/01/0400
Analysis Summary
----------------
BGP routing table entries examined: 227097
Prefixes after maximum aggregation: 119190
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110268
Total ASes present in the Internet Routing Table: 25821
Prefixes per ASN: 8.80
Origin-only ASes present in the Internet Routing Table: 22508
Origin ASes announcing only one prefix: 10989
Transit ASes present in the Internet Routing Table: 3313
Transit-only ASes present in the Internet Routing Table: 78
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: 57
Unregistered ASNs in the Routing Table: 53
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1741793376
Equivalent to 103 /8s, 209 /16s and 168 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 119621
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53470
Total APNIC prefixes after maximum aggregation: 20678
APNIC Deaggregation factor: 2.59
Prefixes being announced from the APNIC address blocks: 50385
Unique aggregates announced from the APNIC address blocks: 21990
APNIC Region origin ASes present in the Internet Routing Table: 3018
APNIC Prefixes per ASN: 16.69
APNIC Region origin ASes announcing only one prefix: 812
APNIC Region transit ASes present in the Internet Routing Table: 459
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 305633696
Equivalent to 18 /8s, 55 /16s and 153 /24s
Percentage of available APNIC address space announced: 75.7
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: 107668
Total ARIN prefixes after maximum aggregation: 62542
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79228
Unique aggregates announced from the ARIN address blocks: 31496
ARIN Region origin ASes present in the Internet Routing Table: 11721
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4535
ARIN Region transit ASes present in the Internet Routing Table: 1068
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341241344
Equivalent to 20 /8s, 86 /16s and 238 /24s
Percentage of available ARIN address space announced: 75.3
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: 47644
Total RIPE prefixes after maximum aggregation: 30606
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43991
Unique aggregates announced from the RIPE address blocks: 29008
RIPE Region origin ASes present in the Internet Routing Table: 9969
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5310
RIPE Region transit ASes present in the Internet Routing Table: 1575
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 323281536
Equivalent to 19 /8s, 68 /16s and 226 /24s
Percentage of available RIPE address space announced: 74.1
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, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15689
Total LACNIC prefixes after maximum aggregation: 4321
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13739
Unique aggregates announced from the LACNIC address blocks: 7744
LACNIC Region origin ASes present in the Internet Routing Table: 835
LACNIC Prefixes per ASN: 16.45
LACNIC Region origin ASes announcing only one prefix: 271
LACNIC Region transit ASes present in the Internet Routing Table: 139
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41062400
Equivalent to 2 /8s, 114 /16s and 144 /24s
Percentage of available LACNIC address space announced: 61.2
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: 2619
Total AfriNIC prefixes after maximum aggregation: 1033
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2163
Unique aggregates announced from the AfriNIC address blocks: 1288
AfriNIC Region origin ASes present in the Internet Routing Table: 199
AfriNIC Prefixes per ASN: 10.87
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6370816
Equivalent to 0 /8s, 97 /16s and 54 /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 1365 10954 289 CHINANET-BACKBONE
4755 1305 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1122 80 397 Sify Limited
9498 1007 533 70 BHARTI BT INTERNET LTD.
4766 796 4930 316 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 699 150 113 TPG Internet Pty Ltd
18101 578 117 41 Reliance Infocom Ltd Internet
1221 548 1951 426 Telstra Pty Ltd
4780 540 290 37 Digital United Inc.
4812 530 915 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 479 768 108 CNCGROUP IP network: China169
9443 471 122 77 Primus Telecommunications
7474 417 218 270 SingTel Optus Pty Ltd
4802 410 105 150 Wantree Development
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1466 6073 992 AT&T WorldNet Services
4323 1325 1022 375 Time Warner Telecom
2386 1210 617 754 AT&T Data Communications Serv
6478 1126 321 129 AT&T Worldnet Services
11492 1107 108 20 Cable One
6197 1026 717 508 BellSouth Network Solutions,
18566 1016 288 9 Covad Communications
174 969 6778 856 Cogent Communications
701 943 6562 720 UUNET Technologies, Inc.
7011 897 257 546 Citizens Utilities
1239 814 2742 582 Sprint
20115 805 739 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
209 748 3871 593 Qwest
22773 748 2148 49 Cox Communications, Inc.
5668 620 169 21 CenturyTel Internet Holdings,
855 574 254 73 Canadian Research Network
6517 574 159 36 Yipes Communications, Inc.
852 572 1093 363 Telus Advanced Communications
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 499 1921 400 UUNET - Commercial IP service
24863 360 56 40 LINKdotNET AS number
9116 322 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 311 6034 258 Deutsche Telekom AG
6746 286 130 262 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 260 445 243 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 251 420 240 Romania Data Systems S.A.
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
8551 215 212 27 Bezeq International
9121 210 1441 24 TTnet Autonomous System
3292 194 1379 174 TDC Tele Danmark
1257 193 1195 171 SWIPnet Swedish IP Network
12479 192 578 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 896 1958 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 377 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
7303 316 150 38 Telecom Argentina Stet-France
6471 313 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
10620 214 60 18 TVCABLE BOGOTA
6503 207 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
8163 176 11 9 METROTEL REDES S.A.
14522 176 28 7 SatNet S.A.
7738 159 506 23 Telecomunicacoes da Bahia S.A
7910 158 11 28 ANDINET ON LINE
20299 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 125 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
24835 89 48 6 RAYA Telecom - Egypt
15475 78 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
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 46 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 37 2 3 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 31 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 1305 1234 Videsh Sanchar Nigam Ltd. Aut
11492 1107 1087 Cable One
4134 1365 1076 CHINANET-BACKBONE
18566 1016 1007 Covad Communications
6478 1126 997 AT&T Worldnet Services
4323 1325 950 Time Warner Telecom
9498 1007 937 BHARTI BT INTERNET LTD.
9583 1122 725 Sify Limited
22773 748 699 Cox Communications, Inc.
8151 896 688 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 620 599 CenturyTel Internet Holdings,
7545 699 586 TPG Internet Pty Ltd
19262 768 581 Verizon Global Networks
6517 574 538 Yipes Communications, Inc.
18101 578 537 Reliance Infocom Ltd Internet
15270 562 525 PaeTec.net -a division of Pae
6197 1026 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
4780 540 503 Digital United Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43278 UNALLOCATED 77.75.56.0/22 31216 BSOCOM Network
34074 UNALLOCATED 77.77.152.0/24 8390 Global One Communica
43346 UNALLOCATED 77.87.168.0/21 28906 CJSC "TransTelecom-N
43087 UNALLOCATED 77.95.88.0/21 12389 JSC Rostelecom
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
42864 UNALLOCATED 77.242.144.0/20 8928 Interoute Telecommun
43350 UNALLOCATED 77.247.176.0/21 20495 We Dare BV Autonomou
43345 UNALLOCATED 78.40.40.0/24 702 UUNET - Commercial I
43328 UNALLOCATED 78.40.112.0/21 21448 Crosswired Mancheste
43391 UNALLOCATED 78.40.224.0/21 9121 TTnet Autonomous Sys
43203 UNALLOCATED 78.108.152.0/22 2819 KPNQwest Czechia AS
43314 UNALLOCATED 78.109.128.0/20 21127 JSC Zap-Sib TransTel
39389 UNALLOCATED 80.67.165.0/24 20766 The main Autonomous
43157 UNALLOCATED 83.143.224.0/21 174 Cogent Communication
24982 UNALLOCATED 85.112.68.0/24 39010 TerraNet sal
43330 UNALLOCATED 87.117.155.0/24 24762 Autonomous system of
43282 UNALLOCATED 87.238.136.0/21 13237 LambdaNet AS for Eur
43378 UNALLOCATED 89.45.176.0/20 5606 KPNQwest Romania AS
43286 UNALLOCATED 91.149.120.0/22 3216 Teleross, Moscow, Ru
42883 UNALLOCATED 91.193.204.0/22 6849 JSC UKRTELECOM,
42976 UNALLOCATED 91.194.4.0/24 8551 Bezeq International
39389 UNALLOCATED 91.194.60.0/23 20766 The main Autonomous
43095 UNALLOCATED 91.194.64.0/23 8470 MAcomnet Autonomous
43103 UNALLOCATED 91.194.72.0/23 21219 Datacom Autonomous S
43144 UNALLOCATED 91.194.106.0/23 12831 TASK, PL-GDANSK
43290 UNALLOCATED 91.194.198.0/23 20751 max4eu.net InterNet-
43294 UNALLOCATED 91.194.200.0/23 33909 RIALNET Ltd.
43302 UNALLOCATED 91.194.206.0/24 29651 CenterTelecom Servic
43302 UNALLOCATED 91.194.207.0/24 29651 CenterTelecom Servic
43376 UNALLOCATED 91.194.234.0/23 2914 Verio, Inc.
43067 UNALLOCATED 91.196.80.0/22 31305 Kriviy Rih City netw
43103 UNALLOCATED 91.196.92.0/22 21219 Datacom Autonomous S
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
43194 UNALLOCATED 91.198.5.0/24 5486 Euronet Digital Comm
43187 UNALLOCATED 91.198.7.0/24 3340 DataNet Telecommunic
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
42512 UNALLOCATED 193.110.76.0/22 13121 Navigator Online ISP
43189 UNALLOCATED 193.134.240.0/21 8220 COLT Telecommunicati
43028 UNALLOCATED 193.200.201.0/24 21016 LVRTC Autonomous Sys
43034 UNALLOCATED 193.200.207.0/24 9119 Softnet
65535 PRIVATE 193.203.218.0/23 38931 Traffic-Media
43360 UNALLOCATED 193.228.153.0/24 6663 InterComp Bucharest
35396 UNALLOCATED 193.247.0.0/19 6830 UPC Distribution Ser
43425 UNALLOCATED 194.50.179.0/24 9121 TTnet Autonomous Sys
43122 UNALLOCATED 194.110.128.0/24 8220 COLT Telecommunicati
42752 UNALLOCATED 194.110.150.0/24 9121 TTnet Autonomous Sys
42795 UNALLOCATED 194.110.245.0/24 174 Cogent Communication
41431 UNALLOCATED 194.246.85.0/24 12843 TelemaxX Autonomous
42591 UNALLOCATED 195.34.68.0/24 25233 Awalnet
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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 /12:130
/13:255 /14:468 /15:901 /16:9562 /17:4024 /18:6538
/19:13823 /20:16067 /21:14605 /22:18947 /23:19896 /24:119485
/25:750 /26:1003 /27:478 /28:74 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1125 1126 AT&T Worldnet Services
11492 1098 1107 Cable One
18566 998 1016 Covad Communications
9583 964 1122 Sify Limited
2386 905 1210 AT&T Data Communications Serv
7018 800 1466 AT&T WorldNet Services
7011 795 897 Citizens Utilities
6197 780 1026 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 698 1305 Videsh Sanchar Nigam Ltd. Aut
9498 677 1007 BHARTI BT INTERNET LTD.
4766 595 796 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 556 1325 Time Warner Telecom
6517 540 574 Yipes Communications, Inc.
15270 527 562 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 490 578 Reliance Infocom Ltd Internet
5668 485 620 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1813 15:19
16:3 17:3 18:12 20:37 24:926 25:1
32:60 33:3 38:341 40:60 41:224 44:2
47:4 52:4 55:3 56:3 57:25 58:463
59:381 60:345 61:993 62:890 63:1982 64:3138
65:2356 66:3306 67:750 68:626 69:1931 70:441
71:102 72:1365 73:2 74:586 75:254 76:87
77:261 78:25 80:825 81:821 82:665 83:372
84:549 85:852 86:341 87:447 88:279 89:960
90:12 91:442 97:6 98:3 116:257 117:88
121:253 122:581 123:138 124:882 125:967 128:291
129:212 130:139 131:362 132:54 133:9 134:193
135:38 136:188 137:81 138:149 139:93 140:494
141:172 142:377 143:253 144:288 145:45 146:325
147:120 148:402 149:142 150:111 151:160 152:92
153:122 154:2 155:257 156:157 157:213 158:158
159:171 160:107 161:94 162:208 163:181 164:470
165:403 166:285 167:294 168:507 169:120 170:411
171:23 172:1 189:66 190:754 192:5745 193:3935
194:3157 195:2235 196:976 198:3806 199:3278 200:4978
201:1116 202:7385 203:7684 204:3933 205:1999 206:2420
207:2854 208:2743 209:3484 210:2524 211:974 212:1280
213:1486 214:413 215:40 216:3983 217:1164 218:358
219:386 220:1015 221:412 222:267
End of report
