Routing Table Report 00:00 GMT Mon 14 Sep, 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: 303138
Prefixes after maximum aggregation: 140486
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 99697
Total ASes present in the Internet Routing Table: 32206
Prefixes per ASN: 9.41
Origin-only ASes present in the Internet Routing Table: 27922
Origin ASes announcing only one prefix: 13625
Transit ASes present in the Internet Routing Table: 4284
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Max AS path prepend of ASN (31759) 22
Prefixes from unregistered ASNs in the Routing Table: 483
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 269
Prefixes from 32-bit ASNs in the Routing Table: 126
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 220
Number of addresses announced to Internet: 1185090438
Equivalent to 70 /8s, 163 /16s and 11 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 36.6
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 146698
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71897
Total APNIC prefixes after maximum aggregation: 25225
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 68240
Unique aggregates announced from the APNIC address blocks: 20524
APNIC Region origin ASes present in the Internet Routing Table: 3777
APNIC Prefixes per ASN: 18.07
APNIC Region origin ASes announcing only one prefix: 1037
APNIC Region transit ASes present in the Internet Routing Table: 586
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 211661312
Equivalent to 12 /8s, 157 /16s and 178 /24s
Percentage of available APNIC address space announced: 36.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 43/8, 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, 175/8, 180/8, 182/8, 183/8, 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: 126821
Total ARIN prefixes after maximum aggregation: 66986
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 100914
Unique aggregates announced from the ARIN address blocks: 24748
ARIN Region origin ASes present in the Internet Routing Table: 13246
ARIN Prefixes per ASN: 7.62
ARIN Region origin ASes announcing only one prefix: 5117
ARIN Region transit ASes present in the Internet Routing Table: 1338
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 454739201
Equivalent to 27 /8s, 26 /16s and 197 /24s
Percentage of available ARIN address space announced: 39.9
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 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, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 69872
Total RIPE prefixes after maximum aggregation: 40211
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 63747
Unique aggregates announced from the RIPE address blocks: 19533
RIPE Region origin ASes present in the Internet Routing Table: 13479
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7004
RIPE Region transit ASes present in the Internet Routing Table: 2038
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 105498784
Equivalent to 6 /8s, 73 /16s and 200 /24s
Percentage of available RIPE address space announced: 21.0
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, 47104-52223, 196608-197631
RIPE Address Blocks 25/8, 51/8, 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: 28010
Total LACNIC prefixes after maximum aggregation: 6232
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 26336
Unique aggregates announced from the LACNIC address blocks: 13242
LACNIC Region origin ASes present in the Internet Routing Table: 1182
LACNIC Prefixes per ASN: 22.28
LACNIC Region origin ASes announcing only one prefix: 374
LACNIC Region transit ASes present in the Internet Routing Table: 198
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 66352912
Equivalent to 3 /8s, 244 /16s and 119 /24s
Percentage of available LACNIC address space announced: 65.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 6147
Total AfriNIC prefixes after maximum aggregation: 1569
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 4481
Unique aggregates announced from the AfriNIC address blocks: 1390
AfriNIC Region origin ASes present in the Internet Routing Table: 320
AfriNIC Prefixes per ASN: 14.00
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 11902464
Equivalent to 0 /8s, 181 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 35.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 1566 6982 427 Korea Telecom (KIX)
17488 1545 137 103 Hathway IP Over Cable Interne
4755 1257 292 141 Videsh Sanchar Nigam Ltd. Aut
9583 1107 87 535 Sify Limited
18101 971 201 32 Reliance Infocom Ltd Internet
4134 949 18167 389 CHINANET-BACKBONE
23577 907 33 754 KRNIC
7545 843 198 99 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
24560 756 284 161 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 4172 3626 313 bellsouth.net, inc.
20115 1984 1480 665 Charter Communications
4323 1925 1049 388 Time Warner Telecom
1785 1740 714 138 AppliedTheory Corporation
7018 1486 9977 1051 AT&T WorldNet Services
6478 1405 282 249 AT&T Worldnet Services
2386 1294 641 948 AT&T Data Communications Serv
3356 1232 10979 437 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1099 2604 66 Cox Communications, Inc.
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
702 619 1822 343 UUNET - Commercial IP service
9116 534 296 30 Goldenlines main autonomous s
30890 490 92 200 Evolva Telecom
3292 448 1901 395 TDC Tele Danmark
12479 424 578 6 Uni2 Autonomous System
35805 386 40 5 United Telecom AS
3301 379 1412 309 TeliaNet Sweden
9198 366 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 353 7067 302 Deutsche Telekom AG
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 2261 337 91 Telecom Argentina Stet-France
8151 1476 2899 244 Uninet S.A. de C.V.
10620 1013 226 97 TVCABLE BOGOTA
28573 707 620 61 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 477 310 58 Instituto Costarricense de El
7738 446 862 30 Telecomunicacoes da Bahia S.A
11172 439 99 70 Alestra
6471 421 96 31 ENTEL CHILE S.A.
16735 420 124 11 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
8452 992 188 7 TEDATA
24863 947 96 57 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 275 856 236 The Internet Solution
2018 207 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
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 4172 3626 313 bellsouth.net, inc.
7303 2261 337 91 Telecom Argentina Stet-France
20115 1984 1480 665 Charter Communications
4323 1925 1049 388 Time Warner Telecom
1785 1740 714 138 AppliedTheory Corporation
4766 1566 6982 427 Korea Telecom (KIX)
17488 1545 137 103 Hathway IP Over Cable Interne
7018 1486 9977 1051 AT&T WorldNet Services
8151 1476 2899 244 Uninet S.A. de C.V.
6478 1405 282 249 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 2261 2170 Telecom Argentina Stet-France
1785 1740 1602 AppliedTheory Corporation
4323 1925 1537 Time Warner Telecom
17488 1545 1442 Hathway IP Over Cable Interne
20115 1984 1319 Charter Communications
8151 1476 1232 Uninet S.A. de C.V.
6478 1405 1156 AT&T Worldnet Services
4766 1566 1139 Korea Telecom (KIX)
4755 1257 1116 Videsh Sanchar Nigam Ltd. Aut
11492 1120 1108 Cable One
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
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
43.245.224.0/20 7502 Internetwork Kyoto
62.61.220.0/24 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 /8:19 /9:10 /10:25 /11:62 /12:177
/13:353 /14:631 /15:1200 /16:10685 /17:4925 /18:8510
/19:17633 /20:21078 /21:21013 /22:27895 /23:27174 /24:157095
/25:816 /26:1020 /27:504 /28:456 /29:710 /30:830
/31:3 /32:314
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2704 4172 bellsouth.net, inc.
7303 1758 2261 Telecom Argentina Stet-France
17488 1294 1545 Hathway IP Over Cable Interne
4766 1245 1566 Korea Telecom (KIX)
1785 1206 1740 AppliedTheory Corporation
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
20115 994 1984 Charter Communications
4323 970 1925 Time Warner Telecom
9583 959 1107 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:215 12:2156 13:7 15:21 16:3
17:5 20:36 24:1164 32:151 34:2 38:601
40:97 41:1719 43:1 44:2 47:24 52:6
55:2 56:2 57:38 58:606 59:645 60:460
61:1073 62:1140 63:2026 64:3638 65:2398 66:3453
67:1762 68:982 69:2747 70:568 71:167 72:1701
73:2 74:1743 75:182 76:321 77:872 78:588
79:382 80:935 81:810 82:561 83:437 84:645
85:1039 86:388 87:683 88:382 89:1471 90:49
91:2547 92:399 93:1153 94:1175 95:1092 96:167
97:268 98:263 99:30 109:3 110:192 111:435
112:131 113:154 114:245 115:336 116:1145 117:576
118:328 119:775 120:122 121:774 122:1262 123:767
124:1051 125:1359 128:222 129:215 130:174 131:420
132:75 133:10 134:173 135:42 136:223 137:162
138:172 139:96 140:432 141:125 142:383 143:347
144:377 145:49 146:389 147:166 148:530 149:291
150:207 151:188 152:212 153:162 154:2 155:277
156:168 157:307 158:112 159:351 160:290 161:165
162:267 163:164 164:276 165:520 166:474 167:368
168:710 169:168 170:502 171:42 172:2 173:408
174:310 175:1 178:1 180:22 182:1 186:154
187:199 188:961 189:693 190:3416 192:5799 193:4386
194:3407 195:2901 196:1140 198:3561 199:3352 200:5517
201:1452 202:7837 203:8286 204:3893 205:2302 206:2402
207:2724 208:3955 209:3409 210:2561 211:1137 212:1678
213:1714 214:169 215:33 216:4333 217:1322 218:416
219:478 220:1124 221:442 222:322
End of report