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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 16 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 212002
Prefixes after maximum aggregation: 114046
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103396
Total ASes present in the Internet Routing Table: 24356
Origin-only ASes present in the Internet Routing Table: 21209
Origin ASes announcing only one prefix: 10249
Transit ASes present in the Internet Routing Table: 3147
Transit-only ASes present in the Internet Routing Table: 74
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: 4
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1685203692
Equivalent to 100 /8s, 114 /16s and 42 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 109196
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47724
Total APNIC prefixes after maximum aggregation: 19301
APNIC Deaggregation factor: 2.47
Prefixes being announced from the APNIC address blocks: 45007
Unique aggregates announced from the APNIC address blocks: 20402
APNIC Region origin ASes present in the Internet Routing Table: 2859
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 421
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290780512
Equivalent to 17 /8s, 84 /16s and 245 /24s
Percentage of available APNIC address space announced: 72.0
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: 103909
Total ARIN prefixes after maximum aggregation: 61168
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 75932
Unique aggregates announced from the ARIN address blocks: 29423
ARIN Region origin ASes present in the Internet Routing Table: 11332
ARIN Region origin ASes announcing only one prefix: 4336
ARIN Region transit ASes present in the Internet Routing Table: 1049
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 318204800
Equivalent to 18 /8s, 247 /16s and 107 /24s
Percentage of available ARIN address space announced: 70.2
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: 43798
Total RIPE prefixes after maximum aggregation: 28586
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40483
Unique aggregates announced from the RIPE address blocks: 26945
RIPE Region origin ASes present in the Internet Routing Table: 9149
RIPE Region origin ASes announcing only one prefix: 4819
RIPE Region transit ASes present in the Internet Routing Table: 1481
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 290809860
Equivalent to 17 /8s, 85 /16s and 104 /24s
Percentage of available RIPE address space announced: 78.8
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: 14003
Total LACNIC prefixes after maximum aggregation: 4025
LACNIC Deaggregation factor: 3.48
Prefixes being announced from the LACNIC address blocks: 12078
Unique aggregates announced from the LACNIC address blocks: 6959
LACNIC Region origin ASes present in the Internet Routing Table: 762
LACNIC Region origin ASes announcing only one prefix: 250
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37694464
Equivalent to 2 /8s, 63 /16s and 44 /24s
Percentage of available LACNIC address space announced: 56.2
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: 2565
Total AfriNIC prefixes after maximum aggregation: 964
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1869
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 179
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5408256
Equivalent to 0 /8s, 82 /16s and 134 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1275 8718 277 CHINANET-BACKBONE
4755 1103 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1051 76 378 Sify Limited
9498 951 467 66 BHARTI BT INTERNET LTD.
23577 779 35 707 Korea Telecom (ATM-MPLS)
4766 766 4944 310 Korea Telecom (KIX)
17488 598 39 24 Hathway IP Over Cable Interne
7545 586 142 76 TPG Internet Pty Ltd
1221 579 1686 444 Telstra Pty Ltd
18101 521 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 500 797 74 China Telecom (Shanghai)
9443 443 111 75 Primus Telecommunications
7474 380 215 257 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 354 34 169 Pakistan Telecom
17974 337 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6124 983 AT&T WorldNet Services
4323 1297 885 507 Time Warner Telecom
6478 1129 454 194 AT&T Worldnet Services
2386 1107 570 733 AT&T Data Communications Serv
6197 1016 651 498 BellSouth Network Solutions,
18566 989 288 9 Covad Communications
11492 959 100 18 Cable One
701 941 6696 748 UUNET Technologies, Inc.
174 916 6789 851 Cogent Communications
1239 826 2730 578 Sprint
20115 806 705 416 Charter Communications
7011 786 227 475 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 728 1872 41 Cox Communications, Inc.
209 719 3743 565 Qwest
721 640 21771 273 DLA Systems Automation Center
852 604 1090 391 Telus Advanced Communications
5668 577 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 70 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 541 1897 420 UUNET - Commercial IP service
24863 325 45 25 LINKdotNET AS number
3301 315 1199 290 TeliaNet Sweden
3320 297 4993 248 Deutsche Telekom AG
8220 270 471 261 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 241 284 227 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 223 1116 172 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
3269 213 2423 71 TELECOM ITALIA
3246 208 355 198 Song Networks
30890 206 17 96 SC Kappa Invexim SRL
8551 203 196 28 Bezeq International
3352 201 1783 32 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 182 171 90 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1020 2095 209 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 347 108 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 250 142 29 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 229 182 20 Telefonica Del Peru
6503 218 173 88 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 156 27 56 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 144 22 17 NEWCOM AMERICAS
19169 143 9 25 Telconet
19429 143 88 35 E.T.B.
14522 140 22 9 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 243 60 6 TEDATA
15475 155 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 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 64 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 53 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 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 26 4 4 Swift Global Kenya Ltd.Is an
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1103 1026 Videsh Sanchar Nigam Ltd. Aut
4134 1275 998 CHINANET-BACKBONE
18566 989 980 Covad Communications
11492 959 941 Cable One
6478 1129 935 AT&T Worldnet Services
9498 951 885 BHARTI BT INTERNET LTD.
8151 1020 811 UniNet S.A. de C.V.
4323 1297 790 Time Warner Telecom
22773 728 687 Cox Communications, Inc.
9583 1051 673 Sify Limited
19262 757 579 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 577 561 CenturyTel Internet Holdings,
6197 1016 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 586 510 TPG Internet Pty Ltd
18101 521 498 Reliance Infocom Ltd Internet
855 565 495 Canadian Research Network
15270 507 473 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
42.205.192.0/20 36925 Meditelecom
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 /12:117
/13:226 /14:424 /15:823 /16:9229 /17:3728 /18:6109
/19:13137 /20:14854 /21:13388 /22:17177 /23:18299 /24:112581
/25:695 /26:488 /27:414 /28:69 /29:43 /30:94
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1074 1129 AT&T Worldnet Services
18566 971 989 Covad Communications
11492 945 959 Cable One
9583 888 1051 Sify Limited
2386 830 1107 AT&T Data Communications Serv
7018 809 1500 AT&T WorldNet Services
6197 795 1016 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 685 786 Citizens Utilities
9498 605 951 BHARTI BT INTERNET LTD.
4766 573 766 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 536 1297 Time Warner Telecom
4755 512 1103 Videsh Sanchar Nigam Ltd. Aut
15270 475 507 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 452 521 Reliance Infocom Ltd Internet
5668 447 577 CenturyTel Internet Holdings,
17488 420 598 Hathway IP Over Cable Interne
33588 410 432 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1796 13:1
15:16 16:3 17:3 18:5 20:36 24:891
25:1 32:53 38:281 40:57 41:87 44:2
47:7 52:4 55:1 56:3 57:25 58:306
59:382 60:211 61:935 62:1022 63:1906 64:3219
65:2311 66:3117 67:722 68:655 69:1725 70:448
71:98 72:1195 73:1 74:165 75:79 76:1
77:21 80:839 81:775 82:654 83:361 84:505
85:724 86:468 87:482 88:232 89:800 90:3
91:165 97:1 116:1 117:1 118:1 119:1
120:1 121:135 122:138 123:37 124:565 125:799
128:304 129:218 130:137 131:340 132:49 133:9
134:186 135:42 136:181 137:113 138:195 139:53
140:503 141:141 142:369 143:215 144:269 145:43
146:315 147:146 148:376 149:189 150:114 151:116
152:94 153:119 154:5 155:250 156:129 157:173
158:167 159:149 160:98 161:89 162:228 163:163
164:449 165:331 166:245 167:282 168:498 169:120
170:387 171:15 172:1 189:164 190:403 192:5752
193:3713 194:2961 195:2201 196:948 198:3738 199:3281
200:4622 201:982 202:7197 203:7353 204:3949 205:2069
206:2393 207:2854 208:2441 209:3581 210:2379 211:926
212:1300 213:1429 214:409 215:39 216:4073 217:1151
218:347 219:274 220:854 221:374 222:257
End of report
Report Website: http://thyme.apnic.net
