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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 04 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217082
Prefixes after maximum aggregation: 116064
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104263
Total ASes present in the Internet Routing Table: 24802
Origin-only ASes present in the Internet Routing Table: 21602
Origin ASes announcing only one prefix: 10434
Transit ASes present in the Internet Routing Table: 3200
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered 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: 1700760648
Equivalent to 101 /8s, 95 /16s and 140 /24s
Percentage of available address space announced: 45.9
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 113172
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49769
Total APNIC prefixes after maximum aggregation: 20034
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 46856
Unique aggregates announced from the APNIC address blocks: 21074
APNIC Region origin ASes present in the Internet Routing Table: 2910
APNIC Region origin ASes announcing only one prefix: 782
APNIC Region transit ASes present in the Internet Routing Table: 432
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 291039424
Equivalent to 17 /8s, 88 /16s and 232 /24s
Percentage of available APNIC address space announced: 72.1
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: 105389
Total ARIN prefixes after maximum aggregation: 61648
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77409
Unique aggregates announced from the ARIN address blocks: 30094
ARIN Region origin ASes present in the Internet Routing Table: 11445
ARIN Region origin ASes announcing only one prefix: 4377
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 324053376
Equivalent to 19 /8s, 80 /16s and 169 /24s
Percentage of available ARIN address space announced: 71.5
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: 44890
Total RIPE prefixes after maximum aggregation: 29302
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41457
Unique aggregates announced from the RIPE address blocks: 26329
RIPE Region origin ASes present in the Internet Routing Table: 9412
RIPE Region origin ASes announcing only one prefix: 4960
RIPE Region transit ASes present in the Internet Routing Table: 1517
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 299004928
Equivalent to 17 /8s, 210 /16s and 116 /24s
Percentage of available RIPE address space announced: 74.3
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
40960-43007
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: 14466
Total LACNIC prefixes after maximum aggregation: 4084
LACNIC Deaggregation factor: 3.54
Prefixes being announced from the LACNIC address blocks: 12567
Unique aggregates announced from the LACNIC address blocks: 7062
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38686464
Equivalent to 2 /8s, 78 /16s and 79 /24s
Percentage of available LACNIC address space announced: 57.6
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: 2538
Total AfriNIC prefixes after maximum aggregation: 990
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1889
Unique aggregates announced from the AfriNIC address blocks: 1167
AfriNIC Region origin ASes present in the Internet Routing Table: 186
AfriNIC Region origin ASes announcing only one prefix: 59
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5967616
Equivalent to 0 /8s, 91 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 17.8
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 1286 9438 280 CHINANET-BACKBONE
4755 1173 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1103 78 377 Sify Limited
9498 968 469 70 BHARTI BT INTERNET LTD.
4766 788 4943 314 Korea Telecom (KIX)
23577 785 35 710 Korea Telecom (ATM-MPLS)
17488 626 41 32 Hathway IP Over Cable Interne
7545 609 142 77 TPG Internet Pty Ltd
1221 578 1973 451 Telstra Pty Ltd
18101 538 116 27 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 10 LG-EDS Systems Inc.
9443 453 111 73 Primus Telecommunications
4812 451 791 72 China Telecom (Shanghai)
7474 378 215 258 SingTel Optus Pty Ltd
17557 370 35 175 Pakistan Telecom
4802 360 86 150 Wantree Development
4837 346 4596 157 chinanet IDC center beijing n
17974 341 129 14 PT TELEKOMUNIKASI INDONESIA
2907 338 1749 311 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1494 6127 983 AT&T WorldNet Services
4323 1267 1020 352 Time Warner Telecom
2386 1089 558 731 AT&T Data Communications Serv
6478 1080 332 154 AT&T Worldnet Services
6197 1032 680 500 BellSouth Network Solutions,
11492 1017 102 12 Cable One
18566 999 288 9 Covad Communications
701 951 6660 726 UUNET Technologies, Inc.
174 940 6791 859 Cogent Communications
1239 820 2715 571 Sprint
20115 810 720 425 Charter Communications
7011 780 225 462 Citizens Utilities
209 722 3733 572 Qwest
19262 721 2582 162 Verizon Global Networks
22773 695 1871 42 Cox Communications, Inc.
721 596 21740 273 DLA Systems Automation Center
852 591 1096 378 Telus Advanced Communications
5668 581 160 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
6198 566 574 263 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1941 416 UUNET - Commercial IP service
24863 339 46 31 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 302 4993 250 Deutsche Telekom AG
6746 273 95 251 Dynamic Network Technologies,
8220 268 468 258 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
5416 254 16 12 BATELCO-BH
3215 239 2256 92 France Telecom Transpac
8708 234 287 227 Romania Data Systems S.A.
1257 222 1180 168 SWIPnet Swedish IP Network
3269 215 2583 72 TELECOM ITALIA
8551 206 196 30 Bezeq International
3246 205 353 195 Song Networks
30890 205 17 93 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 195 1795 36 Ibernet, Internet Access Netw
12479 185 578 6 Uni2 Autonomous System
3300 183 170 88 AUCS Communications Services
786 175 1795 175 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1061 2009 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 361 116 66 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
7303 265 143 24 Telecom Argentina Stet-France
6471 258 74 30 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 229 180 24 Telefonica Del Peru
6503 213 171 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 164 48 22 TVCABLE BOGOTA
21826 156 28 59 INTERCABLE
23216 153 19 46 RAMtelecom Telecomunicaciones
7910 149 10 33 ANDINET ON LINE
19429 148 91 38 E.T.B.
14522 147 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 208 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 128 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 113 7 7 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 61 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1173 1096 Videsh Sanchar Nigam Ltd. Aut
4134 1286 1006 CHINANET-BACKBONE
11492 1017 1005 Cable One
18566 999 990 Covad Communications
6478 1080 926 AT&T Worldnet Services
4323 1267 915 Time Warner Telecom
9498 968 898 BHARTI BT INTERNET LTD.
8151 1061 850 UniNet S.A. de C.V.
9583 1103 726 Sify Limited
22773 695 653 Cox Communications, Inc.
17488 626 594 Hathway IP Over Cable Interne
5668 581 564 CenturyTel Internet Holdings,
19262 721 559 Verizon Global Networks
6197 1032 532 BellSouth Network Solutions,
7545 609 532 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 538 511 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 502 492 LG-EDS Systems Inc.
7029 564 483 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 60.253.128.0/24 7497 Computer Network Inf
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65412 PRIVATE 124.254.29.0/24 7497 Computer Network Inf
65412 PRIVATE 124.254.45.0/24 7497 Computer Network Inf
65412 PRIVATE 124.254.58.0/23 7497 Computer Network Inf
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
65458 PRIVATE 211.161.52.0/23 7497 Computer Network Inf
65458 PRIVATE 211.161.54.0/23 7497 Computer Network Inf
65458 PRIVATE 211.161.56.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.48.0/21 7497 Computer Network Inf
65458 PRIVATE 211.162.56.0/23 7497 Computer Network Inf
65458 PRIVATE 211.162.58.0/23 7497 Computer Network Inf
65458 PRIVATE 211.162.60.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.240.0/21 7497 Computer Network Inf
65458 PRIVATE 211.162.248.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.252.0/22 7497 Computer Network Inf
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
65412 PRIVATE 220.113.17.0/24 7497 Computer Network Inf
65458 PRIVATE 220.113.48.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.56.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.224.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.232.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.240.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.248.0/22 7497 Computer Network Inf
65458 PRIVATE 220.113.252.0/22 7497 Computer Network Inf
65458 PRIVATE 220.115.144.0/20 7497 Computer Network Inf
65458 PRIVATE 220.115.160.0/22 7497 Computer Network Inf
65458 PRIVATE 220.115.160.0/19 7497 Computer Network Inf
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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 /8:20 /9:9 /10:12 /11:33 /12:122
/13:233 /14:444 /15:848 /16:9336 /17:3803 /18:6267
/19:13416 /20:15032 /21:13630 /22:17670 /23:19020 /24:114912
/25:773 /26:811 /27:484 /28:60 /29:39 /30:68
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1071 1080 AT&T Worldnet Services
11492 1003 1017 Cable One
18566 981 999 Covad Communications
9583 943 1103 Sify Limited
7018 814 1494 AT&T WorldNet Services
2386 811 1089 AT&T Data Communications Serv
6197 797 1032 BellSouth Network Solutions,
23577 771 785 Korea Telecom (ATM-MPLS)
7011 683 780 Citizens Utilities
9498 631 968 BHARTI BT INTERNET LTD.
4766 593 788 Korea Telecom (KIX)
4755 569 1173 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 527 1267 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 484 516 PaeTec.net -a division of Pae
855 463 565 Canadian Research Network
18101 462 538 Reliance Infocom Ltd Internet
5668 449 581 CenturyTel Internet Holdings,
17488 448 626 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:65 9:1 12:1790 15:19
16:3 17:3 18:8 20:36 24:935 25:1
32:53 38:294 40:56 41:111 44:2 47:4
52:4 55:1 56:3 57:25 58:355 59:359
60:227 61:906 62:1007 63:1968 64:3097 65:2316
66:3195 67:766 68:637 69:1789 70:490 71:110
72:1243 73:1 74:322 75:173 76:31 77:146
80:814 81:786 82:664 83:376 84:479 85:765
86:382 87:447 88:246 89:883 90:19 91:244
97:1 116:11 117:1 118:1 119:1 120:1
121:162 122:523 123:63 124:753 125:916 128:274
129:223 130:122 131:353 132:51 133:10 134:190
135:37 136:175 137:87 138:193 139:56 140:482
141:143 142:370 143:212 144:280 145:43 146:323
147:147 148:384 149:188 150:115 151:123 152:93
153:121 154:5 155:250 156:152 157:178 158:161
159:151 160:103 161:89 162:235 163:141 164:449
165:399 166:246 167:293 168:500 169:120 170:393
171:15 172:1 189:229 190:547 192:5738 193:3773
194:3067 195:2204 196:915 198:3746 199:3270 200:4616
201:1011 202:7243 203:7404 204:3939 205:2092 206:2409
207:2881 208:2604 209:3598 210:2389 211:927 212:1305
213:1426 214:406 215:39 216:3974 217:1172 218:354
219:300 220:897 221:392 222:270
End of report
Report Website: http://thyme.apnic.net
