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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 24 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 208871
Prefixes after maximum aggregation: 112679
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101592
Total ASes present in the Internet Routing Table: 24193
Origin-only ASes present in the Internet Routing Table: 21071
Origin ASes announcing only one prefix: 10202
Transit ASes present in the Internet Routing Table: 3122
Transit-only ASes present in the Internet Routing Table: 75
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 27
Number of addresses announced to Internet: 1661676364
Equivalent to 99 /8s, 11 /16s and 43 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.6
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 106861
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46607
Total APNIC prefixes after maximum aggregation: 18725
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44055
Unique aggregates announced from the APNIC address blocks: 19169
APNIC Region origin ASes present in the Internet Routing Table: 2828
APNIC Region origin ASes announcing only one prefix: 793
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: 276432864
Equivalent to 16 /8s, 122 /16s and 7 /24s
Percentage of available APNIC address space announced: 86.4
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: 102801
Total ARIN prefixes after maximum aggregation: 60733
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75689
Unique aggregates announced from the ARIN address blocks: 28956
ARIN Region origin ASes present in the Internet Routing Table: 11289
ARIN Region origin ASes announcing only one prefix: 4322
ARIN Region transit ASes present in the Internet Routing Table: 1035
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313960320
Equivalent to 18 /8s, 182 /16s and 167 /24s
Percentage of available ARIN address space announced: 69.3
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: 43222
Total RIPE prefixes after maximum aggregation: 28227
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39932
Unique aggregates announced from the RIPE address blocks: 26638
RIPE Region origin ASes present in the Internet Routing Table: 9066
RIPE Region origin ASes announcing only one prefix: 4784
RIPE Region transit ASes present in the Internet Routing Table: 1468
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286686628
Equivalent to 17 /8s, 22 /16s and 125 /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: 13715
Total LACNIC prefixes after maximum aggregation: 4035
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11727
Unique aggregates announced from the LACNIC address blocks: 7222
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36376832
Equivalent to 2 /8s, 43 /16s and 17 /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: 2524
Total AfriNIC prefixes after maximum aggregation: 958
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 1787
Unique aggregates announced from the AfriNIC address blocks: 1152
AfriNIC Region origin ASes present in the Internet Routing Table: 174
AfriNIC Region origin ASes announcing only one prefix: 54
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: 5370112
Equivalent to 0 /8s, 81 /16s and 241 /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 8667 275 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 762 4944 312 Korea Telecom (KIX)
17488 584 36 20 Hathway IP Over Cable Interne
1221 569 1697 440 Telstra Pty Ltd
7545 562 126 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 345 119 32 PT TELEKOMUNIKASI INDONESIA
4837 334 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 314 212 241 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1544 6126 992 AT&T WorldNet Services
2386 1107 585 732 AT&T Data Communications Serv
4323 1062 818 297 Time Warner Telecom
6197 1022 645 500 BellSouth Network Solutions,
18566 987 272 8 Covad Communications
174 938 6789 868 Cogent Communications
701 935 6691 747 UUNET Technologies, Inc.
11492 911 99 14 Cable One
1239 823 2729 576 Sprint
19262 808 2576 180 Verizon Global Networks
20115 790 686 412 Charter Communications
7011 724 217 449 Citizens Utilities
22773 722 1744 42 Cox Communications, Inc.
209 716 3750 566 Qwest
721 709 21853 285 DLA Systems Automation Center
852 609 1093 394 Telus Advanced Communications
5668 571 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 558 250 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 234 2144 91 France Telecom Transpac
8708 233 283 220 Romania Data Systems S.A.
1257 217 1073 173 SWIPnet Swedish IP Network
3269 213 2391 71 TELECOM ITALIA
30890 211 18 91 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 178 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 849 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 255 74 30 ENTEL CHILE S.A.
14117 251 16 13 Telefonica del Sur S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 225 180 24 Telefonica Del Peru
6503 217 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 157 21 36 INTERCABLE
7910 150 10 33 ANDINET ON LINE
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.
7738 116 442 21 Telecomunicacoes da Bahia 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 222 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 112 6 5 EEPAD TISP TELECOM & INTERNET
2905 91 176 80 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
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
21280 23 4 4 Swift Global Kenya Ltd.Is an
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 1002 CHINANET-BACKBONE
18566 987 979 Covad Communications
11492 911 897 Cable One
9498 929 865 BHARTI BT INTERNET LTD.
4323 1062 765 Time Warner Telecom
22773 722 680 Cox Communications, Inc.
8151 849 646 UniNet S.A. de C.V.
19262 808 628 Verizon Global Networks
17488 584 564 Hathway IP Over Cable Interne
5668 571 552 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 562 487 TPG Internet Pty Ltd
18101 514 487 Reliance Infocom Ltd Internet
855 558 485 Canadian Research Network
15270 500 466 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 762 450 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
116.0.0.0/24 12654 RIPE NCC RIS Project
116.50.0.0/21 12654 RIPE NCC RIS Project
116.255.0.0/16 12654 RIPE NCC RIS Project
117.0.0.0/24 12654 RIPE NCC RIS Project
117.50.0.0/21 12654 RIPE NCC RIS Project
117.255.0.0/16 12654 RIPE NCC RIS Project
118.0.0.0/24 12654 RIPE NCC RIS Project
118.50.0.0/21 12654 RIPE NCC RIS Project
118.255.0.0/16 12654 RIPE NCC RIS Project
119.0.0.0/24 12654 RIPE NCC RIS Project
119.50.0.0/21 12654 RIPE NCC RIS Project
119.255.0.0/16 12654 RIPE NCC RIS Project
120.0.0.0/24 12654 RIPE NCC RIS Project
120.50.0.0/21 12654 RIPE NCC RIS Project
120.255.0.0/16 12654 RIPE NCC RIS Project
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 /11:32 /12:116
/13:227 /14:412 /15:811 /16:9128 /17:3680 /18:5959
/19:12921 /20:14549 /21:13003 /22:16611 /23:17852 /24:111806
/25:661 /26:459 /27:374 /28:66 /29:39 /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 897 911 Cable One
9583 856 1027 Sify Limited
7018 850 1544 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 627 724 Citizens Utilities
9498 587 929 BHARTI BT INTERNET LTD.
4766 570 762 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
855 458 558 Canadian Research Network
18101 446 514 Reliance Infocom Ltd Internet
5668 437 571 CenturyTel Internet Holdings,
1239 408 823 Sprint
17488 407 584 Hathway IP Over Cable Interne
33588 401 423 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 12:1659 13:1
15:15 16:3 17:3 18:5 20:36 24:871
25:1 32:54 38:276 40:57 41:61 44:2
47:10 52:4 55:1 56:3 57:25 58:294
59:374 60:199 61:953 62:1035 63:1904 64:3191
65:2301 66:3136 67:712 68:639 69:1715 70:417
71:133 72:1131 73:1 74:140 75:62 76:20
77:1 80:828 81:776 82:645 83:349 84:489
85:791 86:438 87:475 88:269 89:769 90:2
91:145 97:1 116:1 117:1 118:1 119:1
120:1 121:128 122:67 123:25 124:569 125:778
128:307 129:220 130:126 131:316 132:49 133:9
134:183 135:44 136:180 137:113 138:190 139:53
140:521 141:137 142:365 143:213 144:266 145:67
146:321 147:138 148:363 149:188 150:114 151:117
152:90 153:119 154:5 155:250 156:166 157:168
158:169 159:147 160:99 161:101 162:226 163:162
164:450 165:285 166:245 167:279 168:494 169:121
170:379 171:15 172:1 189:73 190:352 192:5735
193:3646 194:2916 195:2206 196:922 198:3780 199:3276
200:4634 201:966 202:7194 203:7318 204:3961 205:2089
206:2434 207:2900 208:2418 209:3569 210:2321 211:881
212:1318 213:1419 214:394 215:39 216:4094 217:1180
218:355 219:267 220:855 221:371 222:286
End of report
Report Website: http://thyme.apnic.net
