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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 25 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 208874
Prefixes after maximum aggregation: 112676
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101579
Total ASes present in the Internet Routing Table: 24196
Origin-only ASes present in the Internet Routing Table: 21076
Origin ASes announcing only one prefix: 10201
Transit ASes present in the Internet Routing Table: 3120
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1662473804
Equivalent to 99 /8s, 23 /16s and 86 /24s
Percentage of available address space announced: 44.9
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 106964
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46531
Total APNIC prefixes after maximum aggregation: 18702
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 43984
Unique aggregates announced from the APNIC address blocks: 19173
APNIC Region origin ASes present in the Internet Routing Table: 2826
APNIC Region origin ASes announcing only one prefix: 792
APNIC Region transit ASes present in the Internet Routing Table: 419
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 276891872
Equivalent to 16 /8s, 129 /16s and 8 /24s
Percentage of available APNIC address space announced: 68.6
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: 102882
Total ARIN prefixes after maximum aggregation: 60784
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75742
Unique aggregates announced from the ARIN address blocks: 29027
ARIN Region origin ASes present in the Internet Routing Table: 11291
ARIN Region origin ASes announcing only one prefix: 4319
ARIN Region transit ASes present in the Internet Routing Table: 1040
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 314622080
Equivalent to 18 /8s, 192 /16s and 192 /24s
Percentage of available ARIN address space announced: 69.5
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: 43225
Total RIPE prefixes after maximum aggregation: 28233
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39912
Unique aggregates announced from the RIPE address blocks: 26620
RIPE Region origin ASes present in the Internet Routing Table: 9068
RIPE Region origin ASes announcing only one prefix: 4789
RIPE Region transit ASes present in the Internet Routing Table: 1463
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286906276
Equivalent to 17 /8s, 25 /16s and 215 /24s
Percentage of available RIPE address space announced: 77.7
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13747
Total LACNIC prefixes after maximum aggregation: 4010
LACNIC Deaggregation factor: 3.43
Prefixes being announced from the LACNIC address blocks: 11761
Unique aggregates announced from the LACNIC address blocks: 7193
LACNIC Region origin ASes present in the Internet Routing Table: 759
LACNIC Region origin ASes announcing only one prefix: 250
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: 20
Number of LACNIC addresses announced to Internet: 36398848
Equivalent to 2 /8s, 43 /16s and 103 /24s
Percentage of available LACNIC address space announced: 54.2
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: 2487
Total AfriNIC prefixes after maximum aggregation: 946
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 1774
Unique aggregates announced from the AfriNIC address blocks: 1133
AfriNIC Region origin ASes present in the Internet Routing Table: 170
AfriNIC Region origin ASes announcing only one prefix: 51
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5366272
Equivalent to 0 /8s, 81 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1277 8659 274 CHINANET-BACKBONE
4755 1090 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1027 109 16 Sify Limited
9498 929 467 64 BHARTI BT INTERNET LTD.
23577 773 34 701 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 588 37 20 Hathway IP Over Cable Interne
1221 569 1697 440 Telstra Pty Ltd
7545 560 126 75 TPG Internet Pty Ltd
18101 514 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 434 759 68 China Telecom (Shanghai)
4802 361 86 150 Wantree Development
17557 353 35 171 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
17974 348 129 14 PT TELEKOMUNIKASI INDONESIA
4837 334 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 317 212 244 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1550 6127 997 AT&T WorldNet Services
2386 1107 585 732 AT&T Data Communications Serv
4323 1061 818 296 Time Warner Telecom
6197 1022 645 500 BellSouth Network Solutions,
18566 987 272 8 Covad Communications
174 936 6789 866 Cogent Communications
701 934 6691 744 UUNET Technologies, Inc.
11492 912 99 14 Cable One
1239 823 2729 576 Sprint
19262 808 2576 180 Verizon Global Networks
20115 793 687 414 Charter Communications
7011 728 218 453 Citizens Utilities
22773 721 1872 41 Cox Communications, Inc.
209 714 3749 564 Qwest
721 711 21853 286 DLA Systems Automation Center
852 609 1093 394 Telus Advanced Communications
5668 577 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 560 250 73 Canadian Research Network
6198 551 519 256 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 548 1897 427 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
8220 271 474 262 COLT Telecommunications
6746 270 95 247 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 236 2176 92 France Telecom Transpac
8708 233 283 220 Romania Data Systems S.A.
1257 216 1069 172 SWIPnet Swedish IP Network
3269 213 2391 71 TELECOM ITALIA
30890 212 19 90 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3352 181 1767 31 Ibernet, Internet Access Netw
3300 177 171 89 AUCS Communications Services
12479 176 578 6 Uni2 Autonomous System
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 888 2015 203 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 394 108 81 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
14117 245 16 13 Telefonica del Sur S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 225 180 24 Telefonica Del Peru
6503 218 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 157 21 36 INTERCABLE
7910 151 11 32 ANDINET ON LINE
20299 150 23 14 NEWCOM AMERICAS
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 141 9 24 Telconet
19429 140 84 35 E.T.B.
14522 136 21 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 226 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 136 309 112 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 112 6 5 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 52 13 15 MAURITIUS TELECOM
5713 45 294 35 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 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
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1090 1014 Videsh Sanchar Nigam Ltd. Aut
9583 1027 1011 Sify Limited
4134 1277 1003 CHINANET-BACKBONE
18566 987 979 Covad Communications
11492 912 898 Cable One
9498 929 865 BHARTI BT INTERNET LTD.
4323 1061 765 Time Warner Telecom
8151 888 685 UniNet S.A. de C.V.
22773 721 680 Cox Communications, Inc.
19262 808 628 Verizon Global Networks
17488 588 568 Hathway IP Over Cable Interne
5668 577 558 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
855 560 487 Canadian Research Network
18101 514 487 Reliance Infocom Ltd Internet
7545 560 485 TPG Internet Pty Ltd
15270 500 466 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 763 450 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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 /8:19 /9:10 /10:13 /11:33 /12:115
/13:226 /14:413 /15:812 /16:9135 /17:3682 /18:5959
/19:12929 /20:14549 /21:13022 /22:16616 /23:17842 /24:111781
/25:657 /26:461 /27:374 /28:65 /29:38 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 987 Covad Communications
11492 898 912 Cable One
9583 856 1027 Sify Limited
7018 854 1550 AT&T WorldNet Services
2386 830 1107 AT&T Data Communications Serv
6197 795 1022 BellSouth Network Solutions,
23577 759 773 Korea Telecom (ATM-MPLS)
7011 631 728 Citizens Utilities
9498 587 929 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 500 1090 Videsh Sanchar Nigam Ltd. Aut
15270 468 500 PaeTec.net -a division of Pae
855 459 560 Canadian Research Network
18101 446 514 Reliance Infocom Ltd Internet
5668 444 577 CenturyTel Internet Holdings,
17488 411 588 Hathway IP Over Cable Interne
1239 408 823 Sprint
33588 402 424 Bresnan Communications, LLC.
6198 390 551 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:61 9:1 12:1660 13:1
15:15 16:3 17:3 18:5 20:36 24:872
25:1 32:54 38:276 40:57 41:61 44:2
47:10 52:4 55:1 56:3 57:25 58:291
59:374 60:203 61:934 62:1049 63:1903 64:3194
65:2300 66:3134 67:711 68:638 69:1714 70:425
71:133 72:1137 73:1 74:145 75:62 76:22
80:830 81:776 82:647 83:348 84:492 85:748
86:466 87:477 88:274 89:773 90:2 91:148
97:1 116:1 117:1 118:1 119:1 120:1
121:128 122:67 123:25 124:570 125:787 128:307
129:220 130:126 131:316 132:49 133:9 134:183
135:44 136:180 137:113 138:190 139:53 140:522
141:137 142:367 143:214 144:292 145:67 146:319
147:138 148:366 149:189 150:114 151:117 152:90
153:119 154:5 155:250 156:166 157:168 158:169
159:147 160:99 161:101 162:226 163:162 164:449
165:288 166:246 167:281 168:494 169:121 170:379
171:15 172:1 189:110 190:353 192:5735 193:3642
194:2912 195:2206 196:916 198:3776 199:3280 200:4628
201:962 202:7154 203:7301 204:3959 205:2086 206:2432
207:2899 208:2419 209:3571 210:2326 211:881 212:1306
213:1420 214:388 215:39 216:4085 217:1175 218:355
219:268 220:842 221:366 222:286
End of report
Report Website: http://thyme.apnic.net
