Routing Table Report 00:00 GMT Tue 11 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: 278737
Prefixes after maximum aggregation: 133001
Deaggregation factor: 2.10
Unique aggregates announced to Internet: 133187
Total ASes present in the Internet Routing Table: 29812
Prefixes per ASN: 9.35
Origin-only ASes present in the Internet Routing Table: 25860
Origin ASes announcing only one prefix: 12627
Transit ASes present in the Internet Routing Table: 3952
Transit-only ASes present in the Internet Routing Table: 89
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 31
Max AS path prepend of ASN (16327) 25
Prefixes from unregistered ASNs in the Routing Table: 550
Unregistered ASNs in the Routing Table: 208
Number of 32-bit ASNs allocated by the RIRs: 62
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: 197
Number of addresses announced to Internet: 1922316924
Equivalent to 114 /8s, 148 /16s and 58 /24s
Percentage of available address space announced: 51.9
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 82.8
Percentage of address space in use by end-sites: 74.2
Total number of prefixes smaller than registry allocations: 138013
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65618
Total APNIC prefixes after maximum aggregation: 23285
APNIC Deaggregation factor: 2.82
Prefixes being announced from the APNIC address blocks: 62559
Unique aggregates announced from the APNIC address blocks: 26545
APNIC Region origin ASes present in the Internet Routing Table: 3450
APNIC Prefixes per ASN: 18.13
APNIC Region origin ASes announcing only one prefix: 936
APNIC Region transit ASes present in the Internet Routing Table: 546
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 380702240
Equivalent to 22 /8s, 177 /16s and 14 /24s
Percentage of available APNIC address space announced: 81.0
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, 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: 124025
Total ARIN prefixes after maximum aggregation: 66298
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 92548
Unique aggregates announced from the ARIN address blocks: 35684
ARIN Region origin ASes present in the Internet Routing Table: 12605
ARIN Prefixes per ASN: 7.34
ARIN Region origin ASes announcing only one prefix: 4866
ARIN Region transit ASes present in the Internet Routing Table: 1227
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 369649409
Equivalent to 22 /8s, 8 /16s and 103 /24s
Percentage of available ARIN address space announced: 76.0
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: 60407
Total RIPE prefixes after maximum aggregation: 36085
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 56558
Unique aggregates announced from the RIPE address blocks: 37081
RIPE Region origin ASes present in the Internet Routing Table: 12187
RIPE Prefixes per ASN: 4.64
RIPE Region origin ASes announcing only one prefix: 6417
RIPE Region transit ASes present in the Internet Routing Table: 1895
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 377959367
Equivalent to 22 /8s, 135 /16s and 51 /24s
Percentage of available RIPE address space announced: 86.6
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: 23985
Total LACNIC prefixes after maximum aggregation: 5572
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 21991
Unique aggregates announced from the LACNIC address blocks: 11350
LACNIC Region origin ASes present in the Internet Routing Table: 1030
LACNIC Prefixes per ASN: 21.35
LACNIC Region origin ASes announcing only one prefix: 328
LACNIC Region transit ASes present in the Internet Routing Table: 166
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 58119438
Equivalent to 3 /8s, 118 /16s and 213 /24s
Percentage of available LACNIC address space announced: 57.7
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: 4159
Total AfriNIC prefixes after maximum aggregation: 1330
AfriNIC Deaggregation factor: 3.13
Prefixes being announced from the AfriNIC address blocks: 4410
Unique aggregates announced from the AfriNIC address blocks: 2174
AfriNIC Region origin ASes present in the Internet Routing Table: 265
AfriNIC Prefixes per ASN: 16.64
AfriNIC Region origin ASes announcing only one prefix: 80
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12934528
Equivalent to 0 /8s, 197 /16s and 93 /24s
Percentage of available AfriNIC address space announced: 25.7
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
4538 3319 3245 44 China Education and Research
17488 1408 99 107 Hathway IP Over Cable Interne
4755 1304 572 108 Videsh Sanchar Nigam Ltd. Aut
9583 1116 87 477 Sify Limited
4134 890 13776 360 CHINANET-BACKBONE
4766 855 6408 366 Korea Telecom (KIX)
18101 784 161 68 Reliance Infocom Ltd Internet
23577 776 34 694 Korea Telecom (ATM-MPLS)
4780 732 357 63 Digital United Inc.
9498 690 295 51 BHARTI BT INTERNET 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 4360 3433 343 bellsouth.net, inc.
6298 2087 327 689 Cox Communicatons
1785 1695 717 154 AppliedTheory Corporation
20115 1659 1452 724 Charter Communications
6478 1653 364 191 AT&T Worldnet Services
2386 1586 686 908 AT&T Data Communications Serv
4323 1577 1082 376 Time Warner Telecom
7018 1408 9941 969 AT&T WorldNet Services
1803 1392 9 1093 SPRINT
11492 1210 149 16 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 435 1766 381 TDC Tele Danmark
30890 348 94 188 SC Kappa Invexim SRL
8866 338 111 23 Bulgarian Telecommunication C
3301 332 1429 303 TeliaNet Sweden
3215 331 2788 99 France Telecom Transpac
3320 325 7063 272 Deutsche Telekom AG
5462 324 794 27 Telewest Broadband
8452 295 188 11 TEDATA
25233 289 44 24 Awalnet
8551 287 270 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 1738 243 69 Telecom Argentina Stet-France
8151 1395 2848 220 UniNet S.A. de C.V.
11830 670 299 9 Instituto Costarricense de El
22047 566 270 14 VTR PUNTO NET S.A.
10620 546 126 60 TVCABLE BOGOTA
16735 427 92 10 Companhia de Telecomunicacoes
16814 426 27 10 NSS, S.A.
6471 420 85 49 ENTEL CHILE S.A.
11172 406 118 72 Servicios Alestra S.A de C.V
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 562 73 45 LINKdotNET AS number
3741 270 857 227 The Internet Solution
20858 260 34 3 EgyNet
2018 238 215 140 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 141 10 15 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 114 555 63 Telkom SA Ltd
29571 114 13 9 Ci Telecom Autonomous system
33776 109 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 4360 3433 343 bellsouth.net, inc.
4538 3319 3245 44 China Education and Research
6298 2087 327 689 Cox Communicatons
7303 1738 243 69 Telecom Argentina Stet-France
1785 1695 717 154 AppliedTheory Corporation
20115 1659 1452 724 Charter Communications
6478 1653 364 191 AT&T Worldnet Services
2386 1586 686 908 AT&T Data Communications Serv
4323 1577 1082 376 Time Warner Telecom
7018 1408 9941 969 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
4538 3319 3275 China Education and Research
7303 1738 1669 Telecom Argentina Stet-France
1785 1695 1541 AppliedTheory Corporation
6478 1653 1462 AT&T Worldnet Services
6298 2087 1398 Cox Communicatons
17488 1408 1301 Hathway IP Over Cable Interne
4323 1577 1201 Time Warner Telecom
4755 1304 1196 Videsh Sanchar Nigam Ltd. Aut
11492 1210 1194 Cable One
8151 1395 1175 UniNet S.A. de C.V.
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 7018 AT&T WorldNet Servic
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 /8:18 /9:9 /10:18 /11:47 /12:153
/13:306 /14:545 /15:1082 /16:10234 /17:4475 /18:7706
/19:16484 /20:19726 /21:19167 /22:24728 /23:25384 /24:145234
/25:652 /26:737 /27:385 /28:804 /29:401 /30:193
/31:0 /32:249
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2851 4360 bellsouth.net, inc.
6298 2061 2087 Cox Communicatons
4538 1799 3319 China Education and Research
1803 1369 1392 SPRINT
7303 1270 1738 Telecom Argentina Stet-France
2386 1267 1586 AT&T Data Communications Serv
17488 1197 1408 Hathway IP Over Cable Interne
11492 1187 1210 Cable One
1785 1157 1695 AppliedTheory Corporation
6478 1105 1653 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:12 8:157 12:2195 13:2 15:21
16:3 17:5 20:35 24:1102 30:1 32:134
38:519 40:92 41:756 43:1 44:2 47:12
52:3 55:3 56:3 57:48 58:556 59:605
60:451 61:1063 62:1198 63:1938 64:3302 65:2412
66:3536 67:1309 68:812 69:2337 70:881 71:138
72:2088 73:7 74:1278 75:168 76:291 77:884
78:522 79:288 80:932 81:846 82:637 83:399
84:594 85:1044 86:509 87:716 88:349 89:1350
90:25 91:1672 92:292 93:976 94:349 95:4
96:85 97:130 98:385 99:15 113:40 114:122
115:145 116:1054 117:405 118:249 119:514 120:102
121:637 122:866 123:459 124:867 125:1276 128:353
129:217 130:136 131:408 132:72 133:9 134:186
135:31 136:212 137:102 138:145 139:90 140:428
141:111 142:391 143:304 144:303 145:51 146:372
147:140 148:602 149:299 150:130 151:208 152:150
153:143 154:10 155:274 156:174 157:303 158:168
159:300 160:273 161:140 162:246 163:136 164:517
165:509 166:363 167:341 168:632 169:155 170:481
171:40 172:10 173:131 174:1 187:18 188:1
189:350 190:2599 192:5841 193:4269 194:3396 195:2705
196:1020 198:3716 199:3311 200:5861 201:1630 202:8093
203:8036 204:3908 205:2183 206:2305 207:2734 208:3734
209:3416 210:3004 211:1293 212:1559 213:1679 214:68
215:25 216:4382 217:1254 218:414 219:511 220:1064
221:416 222:426
End of report