Routing Table Report 00:00 GMT Sat 28 Feb, 2009
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: 282846
Prefixes after maximum aggregation: 134012
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 137821
Total ASes present in the Internet Routing Table: 30718
Prefixes per ASN: 9.21
Origin-only ASes present in the Internet Routing Table: 26627
Origin ASes announcing only one prefix: 13003
Transit ASes present in the Internet Routing Table: 4091
Transit-only ASes present in the Internet Routing Table: 93
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 24
Max AS path prepend of ASN (18678) 21
Prefixes from unregistered ASNs in the Routing Table: 579
Unregistered ASNs in the Routing Table: 208
Number of 32-bit ASNs allocated by the RIRs: 115
Prefixes from 32-bit ASNs in the Routing Table: 17
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 218
Number of addresses announced to Internet: 2009508204
Equivalent to 119 /8s, 198 /16s and 169 /24s
Percentage of available address space announced: 54.2
Percentage of allocated address space announced: 63.4
Percentage of available address space allocated: 85.5
Percentage of address space in use by end-sites: 75.9
Total number of prefixes smaller than registry allocations: 138972
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64650
Total APNIC prefixes after maximum aggregation: 23200
APNIC Deaggregation factor: 2.79
Prefixes being announced from the APNIC address blocks: 61526
Unique aggregates announced from the APNIC address blocks: 28079
APNIC Region origin ASes present in the Internet Routing Table: 3527
APNIC Prefixes per ASN: 17.44
APNIC Region origin ASes announcing only one prefix: 960
APNIC Region transit ASes present in the Internet Routing Table: 557
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 403878912
Equivalent to 24 /8s, 18 /16s and 180 /24s
Percentage of available APNIC address space announced: 80.2
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: 123070
Total ARIN prefixes after maximum aggregation: 65703
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91849
Unique aggregates announced from the ARIN address blocks: 35913
ARIN Region origin ASes present in the Internet Routing Table: 12834
ARIN Prefixes per ASN: 7.16
ARIN Region origin ASes announcing only one prefix: 4934
ARIN Region transit ASes present in the Internet Routing Table: 1295
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 416489217
Equivalent to 24 /8s, 211 /16s and 31 /24s
Percentage of available ARIN address space announced: 80.1
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, 108/8, 173/8,
174/8, 184/8, 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: 64851
Total RIPE prefixes after maximum aggregation: 37613
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 59700
Unique aggregates announced from the RIPE address blocks: 38879
RIPE Region origin ASes present in the Internet Routing Table: 12742
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 6678
RIPE Region transit ASes present in the Internet Routing Table: 1953
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 389958760
Equivalent to 23 /8s, 62 /16s and 76 /24s
Percentage of available RIPE address space announced: 83.0
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, 109/8,
178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 25238
Total LACNIC prefixes after maximum aggregation: 5726
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 23379
Unique aggregates announced from the LACNIC address blocks: 11804
LACNIC Region origin ASes present in the Internet Routing Table: 1074
LACNIC Prefixes per ASN: 21.77
LACNIC Region origin ASes announcing only one prefix: 345
LACNIC Region transit ASes present in the Internet Routing Table: 177
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 61118362
Equivalent to 3 /8s, 164 /16s and 151 /24s
Percentage of available LACNIC address space announced: 60.7
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: 4549
Total AfriNIC prefixes after maximum aggregation: 1381
AfriNIC Deaggregation factor: 3.29
Prefixes being announced from the AfriNIC address blocks: 4278
Unique aggregates announced from the AfriNIC address blocks: 1380
AfriNIC Region origin ASes present in the Internet Routing Table: 286
AfriNIC Prefixes per ASN: 14.96
AfriNIC Region origin ASes announcing only one prefix: 86
AfriNIC Region transit ASes present in the Internet Routing Table: 55
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 10034048
Equivalent to 0 /8s, 153 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 29.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1519 6928 394 Korea Telecom (KIX)
17488 1517 118 101 Hathway IP Over Cable Interne
4755 1172 403 180 Videsh Sanchar Nigam Ltd. Aut
9583 1087 86 519 Sify Limited
4134 908 16239 367 CHINANET-BACKBONE
18101 749 198 28 Reliance Infocom Ltd Internet
7545 732 159 102 TPG Internet Pty Ltd
9498 691 297 53 BHARTI BT INTERNET LTD.
24560 675 228 174 Bharti Airtel Ltd.
9829 637 491 18 BSNL National Internet Backbo
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 4366 3688 342 bellsouth.net, inc.
4323 1772 1081 377 Time Warner Telecom
1785 1752 733 139 AppliedTheory Corporation
20115 1607 1426 719 Charter Communications
7018 1442 9982 1001 AT&T WorldNet Services
2386 1262 668 908 AT&T Data Communications Serv
6478 1254 296 529 AT&T Worldnet Services
11492 1202 192 12 Cable One
3356 1145 10975 435 Level 3 Communications, LLC
18566 1061 296 10 Covad Communications
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
8452 1233 188 7 TEDATA
35228 459 144 5 Avatar Broadband Limited
3292 452 1762 389 TDC Tele Danmark
30890 445 88 202 Evolva Telecom
12479 396 578 6 Uni2 Autonomous System
3320 351 7081 293 Deutsche Telekom AG
3301 340 1669 305 TeliaNet Sweden
8866 337 109 22 Bulgarian Telecommunication C
3215 334 2978 103 France Telecom Transpac
29049 328 26 3 AzerSat LLC.
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 1810 256 80 Telecom Argentina Stet-France
8151 1443 2831 230 Uninet S.A. de C.V.
10620 792 175 99 TVCABLE BOGOTA
11830 696 299 9 Instituto Costarricense de El
22047 606 302 14 Types of queries are: POCs, o
6471 439 96 33 ENTEL CHILE S.A.
16814 427 27 11 NSS, S.A.
7738 410 794 28 Telecomunicacoes da Bahia S.A
11172 403 118 74 Alestra
16735 381 108 10 Companhia de Telecomunicacoes
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 665 75 29 LINKdotNET AS number
20858 292 34 3 EgyNet
3741 271 857 229 The Internet Solution
2018 242 215 142 TENET-1
33783 150 10 8 EEPAD TISP TELECOM & INTERNET
6713 144 135 11 Itissalat Al-MAGHRIB
29571 130 15 8 Ci Telecom Autonomous system
5536 119 7 20 Internet Egypt Network
5713 117 523 65 Telkom SA Ltd
24835 100 46 9 RAYA Telecom - Egypt
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 4366 3688 342 bellsouth.net, inc.
7303 1810 256 80 Telecom Argentina Stet-France
4323 1772 1081 377 Time Warner Telecom
1785 1752 733 139 AppliedTheory Corporation
20115 1607 1426 719 Charter Communications
4766 1519 6928 394 Korea Telecom (KIX)
17488 1517 118 101 Hathway IP Over Cable Interne
8151 1443 2831 230 Uninet S.A. de C.V.
7018 1442 9982 1001 AT&T WorldNet Services
2386 1262 668 908 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 1810 1730 Telecom Argentina Stet-France
1785 1752 1613 AppliedTheory Corporation
17488 1517 1416 Hathway IP Over Cable Interne
4323 1772 1395 Time Warner Telecom
8452 1233 1226 TEDATA
8151 1443 1213 Uninet S.A. de C.V.
11492 1202 1190 Cable One
4766 1519 1125 Korea Telecom (KIX)
18566 1061 1051 Covad Communications
4755 1172 992 Videsh Sanchar Nigam Ltd. Aut
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
10.29.248.71/32 286 KPNQwest Backbone AS
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.
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.220.16.0/20 8668 TelOne Zimbabwe P/L
41.223.112.0/22 5713 Telkom SA Ltd
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:22 /9:10 /10:20 /11:56 /12:166
/13:325 /14:582 /15:1139 /16:10373 /17:4615 /18:7878
/19:16730 /20:19779 /21:19587 /22:25495 /23:25448 /24:149271
/25:219 /26:282 /27:219 /28:188 /29:190 /30:140
/31:0 /32:112
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2845 4366 bellsouth.net, inc.
7303 1339 1810 Telecom Argentina Stet-France
17488 1296 1517 Hathway IP Over Cable Interne
4766 1226 1519 Korea Telecom (KIX)
8452 1212 1233 TEDATA
11492 1162 1202 Cable One
1785 1158 1752 AppliedTheory Corporation
18566 1042 1061 Covad Communications
2386 955 1262 AT&T Data Communications Serv
9583 939 1087 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:171 12:2216 13:2 15:20 16:3
17:4 20:35 24:1133 32:132 38:546 40:96
41:1942 43:1 44:2 47:19 52:3 55:2
56:3 57:37 58:533 59:614 60:458 61:1101
62:1171 63:1942 64:3550 65:2421 66:3588 67:1442
68:661 69:2481 70:506 71:158 72:1633 73:2
74:1433 75:202 76:311 77:802 78:567 79:327
80:951 81:835 82:562 83:417 84:591 85:1016
86:398 87:644 88:351 89:1412 90:42 91:2017
92:271 93:1176 94:1143 95:467 96:93 97:181
98:195 99:16 109:1 112:71 113:78 114:200
115:229 116:1123 117:496 118:286 119:639 120:133
121:724 122:962 123:523 124:936 125:1289 128:219
129:222 130:135 131:412 132:73 133:9 134:337
135:38 136:223 137:139 138:145 139:86 140:414
141:105 142:384 143:325 144:315 145:40 146:373
147:152 148:537 149:312 150:141 151:199 152:150
153:140 154:10 155:260 156:170 157:295 158:128
159:242 160:282 161:138 162:269 163:140 164:517
165:506 166:274 167:357 168:679 169:163 170:499
171:39 172:10 173:297 174:150 178:1 186:9
187:55 188:6 189:389 190:2901 192:5847 193:4317
194:3432 195:2788 196:1058 198:3712 199:3294 200:5798
201:1635 202:7993 203:8004 204:3932 205:2174 206:2356
207:2796 208:3859 209:3429 210:2640 211:1156 212:1519
213:1739 214:67 215:26 216:4543 217:1226 218:371
219:408 220:1213 221:456 222:321
End of report