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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186530
Prefixes after maximum aggregation: 103071
Unique aggregates announced to Internet: 91260
Total ASes present in the Internet Routing Table: 21944
Origin-only ASes present in the Internet Routing Table: 19068
Origin ASes announcing only one prefix: 9091
Transit ASes present in the Internet Routing Table: 2876
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 59
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1505580896
Equivalent to 89 /8s, 189 /16s and 87 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39146
Total APNIC prefixes after maximum aggregation: 16392
Prefixes being announced from the APNIC address blocks: 36853
Unique aggregates announced from the APNIC address blocks: 18134
APNIC Region origin ASes present in the Internet Routing Table: 2538
APNIC Region origin ASes announcing only one prefix: 718
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221834208
Equivalent to 13 /8s, 56 /16s and 235 /24s
Percentage of available APNIC address space announced: 69.4
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, 121/8, 122/7, 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: 97140
Total ARIN prefixes after maximum aggregation: 57422
Prefixes being announced from the ARIN address blocks: 76248
Unique aggregates announced from the ARIN address blocks: 29358
ARIN Region origin ASes present in the Internet Routing Table: 10633
ARIN Region origin ASes announcing only one prefix: 3980
ARIN Region transit ASes present in the Internet Routing Table: 984
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294243328
Equivalent to 17 /8s, 137 /16s and 204 /24s
Percentage of available ARIN address space announced: 73.1
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37217
Total RIPE prefixes after maximum aggregation: 24789
Prefixes being announced from the RIPE address blocks: 34206
Unique aggregates announced from the RIPE address blocks: 23041
RIPE Region origin ASes present in the Internet Routing Table: 7876
RIPE Region origin ASes announcing only one prefix: 4125
RIPE Region transit ASes present in the Internet Routing Table: 1308
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 246119552
Equivalent to 14 /8s, 171 /16s and 124 /24s
Percentage of available RIPE address space announced: 73.3
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10931
Total LACNIC prefixes after maximum aggregation: 3575
Prefixes being announced from the LACNIC address blocks: 9092
Unique aggregates announced from the LACNIC address blocks: 5373
LACNIC Region origin ASes present in the Internet Routing Table: 678
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26375424
Equivalent to 1 /8s, 146 /16s and 117 /24s
Percentage of available LACNIC address space announced: 39.3
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: 2082
Total AfriNIC prefixes after maximum aggregation: 893
Prefixes being announced from the AfriNIC address blocks: 1446
Unique aggregates announced from the AfriNIC address blocks: 941
AfriNIC Region origin ASes present in the Internet Routing Table: 151
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4033536
Equivalent to 0 /8s, 61 /16s and 140 /24s
Percentage of available AfriNIC address space announced: 12.0
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 988 6923 209 CHINANET-BACKBONE
4755 899 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 868 109 16 Sify Limited
4766 682 3924 303 Korea Telecom (KIX)
1221 620 1557 474 Telstra Pty Ltd
9498 570 212 72 BHARTI BT INTERNET LTD.
7545 528 108 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 451 111 82 Primus Telecommunications
4802 382 81 176 Wantree Development
18101 337 69 25 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17849 328 21 108 Telecommunications Technology
9929 321 220 55 China Netcom Corp.
17557 314 27 159 Pakistan Telecom
17974 304 118 25 PT TELEKOMUNIKASI INDONESIA
7474 297 210 228 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
4837 267 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1506 6256 971 AT&T WorldNet Services
4323 1254 716 251 Time Warner Telecom
721 1014 21961 306 DLA Systems Automation Center
6197 1008 615 470 BellSouth Network Solutions,
174 958 5783 906 Cogent Communications
701 938 8047 777 UUNET Technologies, Inc.
18566 930 272 8 Covad Communications
2386 875 537 667 AT&T Data Communications Serv
1239 852 2805 605 Sprint
19029 812 151 111 New Edge Networks
209 713 3615 559 Qwest
20115 676 592 364 Charter Communications
19262 670 1977 157 Verizon Global Networks
22773 644 1488 42 Cox Communications, Inc.
7011 630 217 411 Citizens Utilities
11492 627 86 20 Cable One
6198 589 530 235 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 560 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 292 474 270 COLT Telecommunications
3320 284 3988 235 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 198 711 173 SWIPnet Swedish IP Network
3269 196 2070 75 TELECOM ITALIA
3215 191 1598 89 France Telecom Transpac
8866 175 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 162 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1067 226 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 321 110 84 Servicios Alestra S.A de C.V
16814 308 20 8 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
21826 130 16 21 INTERCABLE
5639 129 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6503 121 149 74 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
6505 106 88 78 Global One Communicaoes Ltda
7910 106 7 10 ANDINET ON LINE
23216 101 21 9 RAMtelecom Telecomunicaciones
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
15475 114 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1254 1003 Time Warner Telecom
18566 930 922 Covad Communications
9583 868 852 Sify Limited
4755 899 828 Videsh Sanchar Nigam Ltd. Aut
4134 988 779 CHINANET-BACKBONE
721 1014 708 DLA Systems Automation Center
19029 812 701 New Edge Networks
11492 627 607 Cable One
22773 644 602 Cox Communications, Inc.
6197 1008 538 BellSouth Network Solutions,
19262 670 513 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 570 498 BHARTI BT INTERNET LTD.
855 560 496 Canadian Research Network
17488 501 494 Hathway IP Over Cable Interne
8151 700 474 UniNet S.A. de C.V.
7545 528 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 539 430 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
43144 UNALLOCATED 12.149.157.0/24 7018 AT&T WorldNet Servic
36726 UNALLOCATED 12.168.217.0/24 7018 AT&T WorldNet Servic
64545 PRIVATE 38.99.133.0/24 174 Cogent Communication
26312 UNALLOCATED 63.123.236.0/24 11486 Worldcom Advance Net
26312 UNALLOCATED 63.123.239.0/24 11486 Worldcom Advance Net
64501 RESERVED 68.142.125.0/24 22822 Limelight Networks,
36653 UNALLOCATED 69.26.251.0/24 3549 Global Crossing
36520 UNALLOCATED 70.182.117.0/24 7132 SBC Internet Service
36520 UNALLOCATED 71.158.129.0/24 7132 SBC Internet Service
36553 UNALLOCATED 72.5.42.0/24 10910 InterNAP Network Ser
36553 UNALLOCATED 72.5.43.0/24 10910 InterNAP Network Ser
39099 UNALLOCATED 80.89.240.0/20 174 Cogent Communication
39519 UNALLOCATED 81.27.48.0/22 6863 ru.rosnet Local Regi
39504 UNALLOCATED 84.246.72.0/24 9155 QualityNet AS number
39676 UNALLOCATED 85.249.152.0/21 25462 This is AS for opera
39578 UNALLOCATED 88.151.184.0/21 20764 CJSC Rascom, St.Pete
39522 UNALLOCATED 89.104.224.0/19 3356 Level 3 Communicatio
39636 UNALLOCATED 89.184.96.0/19 12779 ITGATE.Net
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
39674 UNALLOCATED 193.93.152.0/22 6908 DataHop Autonomous S
39534 UNALLOCATED 194.50.38.0/24 12670 Completel Autonomous
35775 UNALLOCATED 194.88.148.0/23 20616 NetBridge Investment
29511 UNALLOCATED 195.140.229.0/24 24587 AS for Internet Onli
29511 UNALLOCATED 195.140.231.0/24 24587 AS for Internet Onli
35663 UNALLOCATED 195.160.190.0/24 13030 INIT7 Autonomous Sys
35663 UNALLOCATED 195.160.190.0/23 13030 INIT7 Autonomous Sys
35663 UNALLOCATED 195.160.191.0/24 13030 INIT7 Autonomous Sys
39625 UNALLOCATED 195.178.114.0/23 12968 Crowley Data Poland,
39267 UNALLOCATED 195.182.28.0/24 2854 RoSprint AS (Global
39602 UNALLOCATED 195.210.38.0/23 29131 Main infrastructure
39614 UNALLOCATED 195.238.72.0/23 8359 MTU-Intel Moscow reg
37993 UNALLOCATED 203.24.137.0/24 7545 TPG Internet Pty Ltd
24518 UNALLOCATED 203.78.112.0/20 4795 INDOSATNET-ASN
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
37992 UNALLOCATED 203.131.208.0/20 4741 Samart Corporation C
37992 UNALLOCATED 203.131.210.0/23 4741 Samart Corporation C
37992 UNALLOCATED 203.131.212.0/23 4741 Samart Corporation C
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
36730 UNALLOCATED 206.192.61.0/24 19094 Adelphia Business So
36702 UNALLOCATED 207.155.175.0/24 2828 XO Communications
36653 UNALLOCATED 208.49.168.0/24 19116 airBand Communicatio
36263 UNALLOCATED 208.146.32.0/23 6993 InterNAP
28871 UNALLOCATED 213.167.224.0/24 12541 Cable & Wireless Eur
28871 UNALLOCATED 213.167.224.0/19 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.225.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.226.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.227.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.228.0/23 15734 IDH Autonomous Syste
29511 UNALLOCATED 213.171.67.0/24 24587 AS for Internet Onli
36553 UNALLOCATED 216.35.69.0/24 3561 Savvis
36456 UNALLOCATED 216.54.129.0/24 4323 Time Warner Telecom
36553 UNALLOCATED 216.74.142.0/24 3561 Savvis
36541 UNALLOCATED 216.185.10.0/24 22925 Allied Telecom Group
35113 UNALLOCATED 217.67.48.0/20 8190 VIATEL
24808 UNALLOCATED 217.78.74.0/23 12491 IPPlanet
24808 UNALLOCATED 217.78.76.0/23 12491 IPPlanet
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
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 /8:17 /9:9 /10:9 /11:27 /12:88
/13:200 /14:357 /15:696 /16:8791 /17:3169 /18:5222
/19:11529 /20:12974 /21:11206 /22:14389 /23:15486 /24:101327
/25:363 /26:261 /27:215 /28:60 /29:69 /30:33
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 913 930 Covad Communications
6197 797 1008 BellSouth Network Solutions,
7018 796 1506 AT&T WorldNet Services
19029 744 812 New Edge Networks
9583 697 868 Sify Limited
11492 618 627 Cable One
4323 604 1254 Time Warner Telecom
2386 595 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 630 Citizens Utilities
4766 491 682 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 442 589 BellSouth Network Solutions,
855 434 560 Canadian Research Network
5668 415 535 CenturyTel Internet Holdings,
1239 380 852 Sprint
15270 371 402 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 351 379 Yipes Communications, Inc.
8151 344 700 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1622 13:1 15:12 16:3
17:3 18:4 20:43 24:885 25:1 30:2
32:68 38:212 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:146 59:195 60:172
61:837 62:820 63:1911 64:3118 65:2235 66:3076
67:627 68:684 69:1475 70:328 71:76 72:687
73:23 74:29 80:780 81:611 82:574 83:365
84:377 85:524 86:345 87:309 88:62 89:136
124:218 125:366 128:157 129:176 130:107 131:317
132:31 133:8 134:150 135:46 136:177 137:70
138:198 139:65 140:467 141:134 142:395 143:161
144:225 145:42 146:326 147:133 148:329 149:189
150:114 151:80 152:64 153:107 154:6 155:196
156:95 157:130 158:165 159:169 160:87 161:72
162:252 163:146 164:179 165:180 166:166 167:243
168:478 169:134 170:327 171:12 172:1 183:1
190:95 192:5764 193:3395 194:2576 195:1818 196:843
198:3887 199:3261 200:4324 201:827 202:6543 203:6874
204:3925 205:2092 206:2418 207:2908 208:2035 209:3773
210:1914 211:699 212:1254 213:1456 214:338 215:41
216:4097 217:1169 218:250 219:180 220:653 221:354
222:144
End of report
