Routing Table Report 00:00 GMT Wed 26 Nov, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 277921
Prefixes after maximum aggregation: 133418
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 133284
Total ASes present in the Internet Routing Table: 29984
Prefixes per ASN: 9.27
Origin-only ASes present in the Internet Routing Table: 25989
Origin ASes announcing only one prefix: 12713
Transit ASes present in the Internet Routing Table: 3995
Transit-only ASes present in the Internet Routing Table: 95
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 538
Unregistered ASNs in the Routing Table: 200
Number of 32-bit ASNs allocated by the RIRs: 64
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 198
Number of addresses announced to Internet: 1964617116
Equivalent to 117 /8s, 25 /16s and 173 /24s
Percentage of available address space announced: 53.0
Percentage of allocated address space announced: 63.3
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.4
Total number of prefixes smaller than registry allocations: 137931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 63033
Total APNIC prefixes after maximum aggregation: 23352
APNIC Deaggregation factor: 2.70
Prefixes being announced from the APNIC address blocks: 59977
Unique aggregates announced from the APNIC address blocks: 27035
APNIC Region origin ASes present in the Internet Routing Table: 3474
APNIC Prefixes per ASN: 17.26
APNIC Region origin ASes announcing only one prefix: 945
APNIC Region transit ASes present in the Internet Routing Table: 537
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 388416288
Equivalent to 23 /8s, 38 /16s and 195 /24s
Percentage of available APNIC address space announced: 77.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8,
113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8,
221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 124915
Total ARIN prefixes after maximum aggregation: 66416
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93304
Unique aggregates announced from the ARIN address blocks: 34749
ARIN Region origin ASes present in the Internet Routing Table: 12671
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4902
ARIN Region transit ASes present in the Internet Routing Table: 1252
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 402002433
Equivalent to 23 /8s, 246 /16s and 18 /24s
Percentage of available ARIN address space announced: 82.6
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, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 61160
Total RIPE prefixes after maximum aggregation: 36302
RIPE Deaggregation factor: 1.68
Prefixes being announced from the RIPE address blocks: 57157
Unique aggregates announced from the RIPE address blocks: 37364
RIPE Region origin ASes present in the Internet Routing Table: 12253
RIPE Prefixes per ASN: 4.66
RIPE Region origin ASes announcing only one prefix: 6448
RIPE Region transit ASes present in the Internet Routing Table: 1918
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 379687143
Equivalent to 22 /8s, 161 /16s and 144 /24s
Percentage of available RIPE address space announced: 87.0
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
40960-45055, 47104-49151
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 24132
Total LACNIC prefixes after maximum aggregation: 5554
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 22170
Unique aggregates announced from the LACNIC address blocks: 11422
LACNIC Region origin ASes present in the Internet Routing Table: 1035
LACNIC Prefixes per ASN: 21.42
LACNIC Region origin ASes announcing only one prefix: 333
LACNIC Region transit ASes present in the Internet Routing Table: 172
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 58392334
Equivalent to 3 /8s, 122 /16s and 255 /24s
Percentage of available LACNIC address space announced: 58.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4151
Total AfriNIC prefixes after maximum aggregation: 1364
AfriNIC Deaggregation factor: 3.04
Prefixes being announced from the AfriNIC address blocks: 4441
Unique aggregates announced from the AfriNIC address blocks: 2242
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 16.39
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 56
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 13028736
Equivalent to 0 /8s, 198 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 25.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17488 1435 100 113 Hathway IP Over Cable Interne
9583 1150 87 480 Sify Limited
4755 1115 434 164 Videsh Sanchar Nigam Ltd. Aut
4766 1077 6409 366 Korea Telecom (KIX)
4134 888 15536 372 CHINANET-BACKBONE
18101 785 168 31 Reliance Infocom Ltd Internet
23577 767 33 687 Korea Telecom (ATM-MPLS)
9498 690 295 51 BHARTI BT INTERNET LTD.
7545 647 152 82 TPG Internet Pty Ltd
24560 625 193 159 Bharti Airtel Ltd.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4367 3418 337 bellsouth.net, inc.
6298 2158 333 635 Cox Communicatons
20115 1840 1460 736 Charter Communications
1785 1702 717 154 AppliedTheory Corporation
6478 1604 368 205 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1590 1050 376 Time Warner Telecom
7018 1407 9910 966 AT&T WorldNet Services
1803 1328 7 1064 SPRINT
11492 1219 192 12 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 438 1765 382 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 367 80 196 SC Kappa Invexim SRL
3301 338 1429 307 TeliaNet Sweden
29049 333 26 3 AzerSat LLC.
8866 330 109 22 Bulgarian Telecommunication C
3320 324 7062 272 Deutsche Telekom AG
3215 316 2788 99 France Telecom Transpac
8452 311 188 11 TEDATA
8551 304 286 37 Bezeq International
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 1754 244 73 Telecom Argentina Stet-France
8151 1373 2797 210 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 534 270 14 VTR PUNTO NET S.A.
10620 529 121 44 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 425 88 50 ENTEL CHILE S.A.
11172 400 86 70 Servicios Alestra S.A de C.V
16735 377 92 9 Companhia de Telecomunicacoes
7738 373 730 27 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 512 72 50 LINKdotNET AS number
3741 269 857 226 The Internet Solution
20858 261 34 3 EgyNet
2018 238 215 140 Tertiary Education Network
29571 148 13 8 Ci Telecom Autonomous system
33783 143 10 17 EEPAD TISP TELECOM & INTERNET
6713 137 135 11 Itissalat Al-MAGHRIB
5536 120 8 17 Internet Egypt Network
5713 119 555 68 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4367 3418 337 bellsouth.net, inc.
6298 2158 333 635 Cox Communicatons
20115 1840 1460 736 Charter Communications
7303 1754 244 73 Telecom Argentina Stet-France
1785 1702 717 154 AppliedTheory Corporation
6478 1604 368 205 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1590 1050 376 Time Warner Telecom
17488 1435 100 113 Hathway IP Over Cable Interne
7018 1407 9910 966 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 1754 1681 Telecom Argentina Stet-France
1785 1702 1548 AppliedTheory Corporation
6298 2158 1523 Cox Communicatons
6478 1604 1399 AT&T Worldnet Services
17488 1435 1322 Hathway IP Over Cable Interne
4323 1590 1214 Time Warner Telecom
11492 1219 1207 Cable One
8151 1373 1163 UniNet S.A. de C.V.
20115 1840 1104 Charter Communications
18566 1059 1049 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:9 /10:19 /11:56 /12:162
/13:316 /14:552 /15:1085 /16:10213 /17:4488 /18:7652
/19:16410 /20:19299 /21:19033 /22:24806 /23:25252 /24:145214
/25:652 /26:729 /27:376 /28:801 /29:393 /30:138
/31:0 /32:247
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2857 4367 bellsouth.net, inc.
6298 2132 2158 Cox Communicatons
1803 1307 1328 SPRINT
7303 1286 1754 Telecom Argentina Stet-France
2386 1275 1595 AT&T Data Communications Serv
17488 1225 1435 Hathway IP Over Cable Interne
11492 1194 1219 Cable One
1785 1162 1702 AppliedTheory Corporation
6478 1106 1604 AT&T Worldnet Services
18566 1040 1059 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 8:163 12:2201 13:2 15:21 16:3
17:5 20:36 24:1140 32:139 38:518 40:93
41:794 43:1 44:2 47:12 52:3 55:3
56:3 57:48 58:505 59:551 60:456 61:1062
62:1180 63:1941 64:3363 65:2430 66:3592 67:1365
68:851 69:2367 70:897 71:172 72:2097 73:7
74:1309 75:172 76:291 77:896 78:520 79:287
80:936 81:854 82:581 83:411 84:587 85:1053
86:508 87:669 88:352 89:1366 90:29 91:1710
92:315 93:1003 94:695 95:39 96:91 97:138
98:398 99:9 100:1 113:41 114:135 115:160
116:1055 117:411 118:297 119:543 120:106 121:652
122:885 123:458 124:847 125:1240 128:357 129:219
130:135 131:410 132:72 133:9 134:187 135:31
136:223 137:116 138:144 139:93 140:430 141:111
142:393 143:305 144:303 145:52 146:373 147:143
148:606 149:291 150:143 151:210 152:139 153:138
154:10 155:277 156:175 157:302 158:168 159:298
160:273 161:132 162:249 163:133 164:517 165:523
166:361 167:340 168:643 169:155 170:484 171:40
172:10 173:122 174:6 187:18 188:1 189:360
190:2681 192:5869 193:4232 194:3395 195:2696 196:1026
198:3715 199:3322 200:5862 201:1608 202:7822 203:7912
204:3920 205:2199 206:2312 207:2734 208:3776 209:3475
210:2563 211:1154 212:1561 213:1676 214:69 215:25
216:4434 217:1249 218:364 219:411 220:1087 221:442
222:308
End of report