Routing Table Report 00:00 GMT Thu 26 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: 282270
Prefixes after maximum aggregation: 133891
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 137528
Total ASes present in the Internet Routing Table: 30691
Prefixes per ASN: 9.20
Origin-only ASes present in the Internet Routing Table: 26703
Origin ASes announcing only one prefix: 12995
Transit ASes present in the Internet Routing Table: 3988
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 24
Max AS path prepend of ASN (12445) 18
Prefixes from unregistered ASNs in the Routing Table: 606
Unregistered ASNs in the Routing Table: 213
Number of 32-bit ASNs allocated by the RIRs: 110
Prefixes from 32-bit ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 220
Number of addresses announced to Internet: 2009193484
Equivalent to 119 /8s, 193 /16s and 220 /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: 138790
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64526
Total APNIC prefixes after maximum aggregation: 23188
APNIC Deaggregation factor: 2.78
Prefixes being announced from the APNIC address blocks: 61382
Unique aggregates announced from the APNIC address blocks: 28049
APNIC Region origin ASes present in the Internet Routing Table: 3527
APNIC Prefixes per ASN: 17.40
APNIC Region origin ASes announcing only one prefix: 961
APNIC Region transit ASes present in the Internet Routing Table: 549
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 403536640
Equivalent to 24 /8s, 13 /16s and 123 /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: 122957
Total ARIN prefixes after maximum aggregation: 65686
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91677
Unique aggregates announced from the ARIN address blocks: 35721
ARIN Region origin ASes present in the Internet Routing Table: 12833
ARIN Prefixes per ASN: 7.14
ARIN Region origin ASes announcing only one prefix: 4939
ARIN Region transit ASes present in the Internet Routing Table: 1242
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 416337409
Equivalent to 24 /8s, 208 /16s and 206 /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: 64577
Total RIPE prefixes after maximum aggregation: 37527
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 59445
Unique aggregates announced from the RIPE address blocks: 38786
RIPE Region origin ASes present in the Internet Routing Table: 12725
RIPE Prefixes per ASN: 4.67
RIPE Region origin ASes announcing only one prefix: 6674
RIPE Region transit ASes present in the Internet Routing Table: 1918
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 389680744
Equivalent to 23 /8s, 58 /16s and 14 /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: 25144
Total LACNIC prefixes after maximum aggregation: 5702
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 23286
Unique aggregates announced from the LACNIC address blocks: 11781
LACNIC Region origin ASes present in the Internet Routing Table: 1067
LACNIC Prefixes per ASN: 21.82
LACNIC Region origin ASes announcing only one prefix: 337
LACNIC Region transit ASes present in the Internet Routing Table: 174
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 61034394
Equivalent to 3 /8s, 163 /16s and 79 /24s
Percentage of available LACNIC address space announced: 60.6
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: 4552
Total AfriNIC prefixes after maximum aggregation: 1379
AfriNIC Deaggregation factor: 3.30
Prefixes being announced from the AfriNIC address blocks: 4279
Unique aggregates announced from the AfriNIC address blocks: 1410
AfriNIC Region origin ASes present in the Internet Routing Table: 283
AfriNIC Prefixes per ASN: 15.12
AfriNIC Region origin ASes announcing only one prefix: 84
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: 10020224
Equivalent to 0 /8s, 152 /16s and 229 /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
17488 1522 117 100 Hathway IP Over Cable Interne
4766 1520 6928 394 Korea Telecom (KIX)
4755 1171 403 179 Videsh Sanchar Nigam Ltd. Aut
9583 1096 86 523 Sify Limited
4134 908 16239 367 CHINANET-BACKBONE
18101 750 198 25 Reliance Infocom Ltd Internet
7545 732 159 102 TPG Internet Pty Ltd
9498 683 297 51 BHARTI BT INTERNET LTD.
24560 675 228 174 Bharti Airtel Ltd.
9829 638 491 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 4368 3688 342 bellsouth.net, inc.
4323 1780 1081 377 Time Warner Telecom
1785 1751 733 139 AppliedTheory Corporation
20115 1606 1426 719 Charter Communications
7018 1441 9982 1000 AT&T WorldNet Services
2386 1262 668 908 AT&T Data Communications Serv
6478 1253 300 502 AT&T Worldnet Services
11492 1201 192 12 Cable One
3356 1141 10976 440 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 397 578 6 Uni2 Autonomous System
3320 344 7081 293 Deutsche Telekom AG
3301 339 1669 304 TeliaNet Sweden
8866 337 109 22 Bulgarian Telecommunication C
3215 331 2946 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 1811 256 79 Telecom Argentina Stet-France
8151 1443 2831 231 Uninet S.A. de C.V.
10620 769 168 100 TVCABLE BOGOTA
11830 694 299 9 Instituto Costarricense de El
22047 614 302 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 380 108 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 664 75 29 LINKdotNET AS number
20858 293 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
33776 118 6 3 Starcomms Nigeria Limited
5713 117 523 65 Telkom SA Ltd
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 4368 3688 342 bellsouth.net, inc.
7303 1811 256 79 Telecom Argentina Stet-France
4323 1780 1081 377 Time Warner Telecom
1785 1751 733 139 AppliedTheory Corporation
20115 1606 1426 719 Charter Communications
17488 1522 117 100 Hathway IP Over Cable Interne
4766 1520 6928 394 Korea Telecom (KIX)
8151 1443 2831 231 Uninet S.A. de C.V.
7018 1441 9982 1000 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 1811 1732 Telecom Argentina Stet-France
1785 1751 1612 AppliedTheory Corporation
17488 1522 1422 Hathway IP Over Cable Interne
4323 1780 1403 Time Warner Telecom
8452 1233 1226 TEDATA
8151 1443 1212 Uninet S.A. de C.V.
11492 1201 1189 Cable One
4766 1520 1126 Korea Telecom (KIX)
18566 1061 1051 Covad Communications
4755 1171 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 /8:21 /9:10 /10:20 /11:56 /12:166
/13:325 /14:581 /15:1138 /16:10377 /17:4606 /18:7865
/19:16724 /20:19764 /21:19549 /22:25410 /23:25425 /24:148887
/25:218 /26:280 /27:217 /28:195 /29:184 /30:138
/31:0 /32:114
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2847 4368 bellsouth.net, inc.
7303 1340 1811 Telecom Argentina Stet-France
17488 1293 1522 Hathway IP Over Cable Interne
4766 1227 1520 Korea Telecom (KIX)
8452 1212 1233 TEDATA
11492 1161 1201 Cable One
1785 1157 1751 AppliedTheory Corporation
18566 1042 1061 Covad Communications
2386 955 1262 AT&T Data Communications Serv
9583 948 1096 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:184 12:2217 13:2 15:20 16:3
17:4 20:35 24:1132 32:132 38:547 40:96
41:1948 43:1 44:2 47:10 52:3 55:2
56:3 57:37 58:533 59:613 60:458 61:1099
62:1147 63:1947 64:3554 65:2417 66:3573 67:1481
68:660 69:2479 70:507 71:158 72:1630 73:2
74:1431 75:202 76:311 77:794 78:565 79:325
80:972 81:830 82:563 83:412 84:593 85:1006
86:398 87:648 88:351 89:1398 90:42 91:2001
92:272 93:1160 94:1120 95:424 96:90 97:181
98:193 99:16 109:1 112:13 113:77 114:193
115:228 116:1127 117:499 118:285 119:643 120:133
121:724 122:962 123:522 124:937 125:1281 128:221
129:222 130:135 131:411 132:73 133:9 134:337
135:38 136:223 137:139 138:145 139:86 140:413
141:105 142:382 143:338 144:320 145:40 146:373
147:151 148:538 149:309 150:141 151:198 152:150
153:140 154:10 155:260 156:170 157:295 158:148
159:241 160:282 161:138 162:268 163:140 164:517
165:506 166:274 167:354 168:681 169:163 170:496
171:39 172:10 173:222 174:79 178:1 186:6
187:55 188:6 189:384 190:2900 192:5849 193:4317
194:3429 195:2781 196:1071 198:3717 199:3294 200:5794
201:1610 202:7962 203:8000 204:3934 205:2176 206:2362
207:2756 208:3868 209:3440 210:2639 211:1159 212:1511
213:1727 214:68 215:26 216:4539 217:1225 218:373
219:406 220:1221 221:458 222:321
End of report