Routing Table Report 00:00 GMT Wed 23 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: 306679
Prefixes after maximum aggregation: 140773
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 147993
Total ASes present in the Internet Routing Table: 32287
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 28023
Origin ASes announcing only one prefix: 13665
Transit ASes present in the Internet Routing Table: 4264
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 491
Unregistered ASNs in the Routing Table: 143
Number of 32-bit ASNs allocated by the RIRs: 277
Prefixes from 32-bit ASNs in the Routing Table: 133
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 222
Number of addresses announced to Internet: 2108476700
Equivalent to 125 /8s, 172 /16s and 205 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 78.9
Total number of prefixes smaller than registry allocations: 149026
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72751
Total APNIC prefixes after maximum aggregation: 25261
APNIC Deaggregation factor: 2.88
Prefixes being announced from the APNIC address blocks: 69022
Unique aggregates announced from the APNIC address blocks: 30261
APNIC Region origin ASes present in the Internet Routing Table: 3796
APNIC Prefixes per ASN: 18.18
APNIC Region origin ASes announcing only one prefix: 1046
APNIC Region transit ASes present in the Internet Routing Table: 589
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 460387328
Equivalent to 27 /8s, 112 /16s and 244 /24s
Percentage of available APNIC address space announced: 78.4
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: 128883
Total ARIN prefixes after maximum aggregation: 67098
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 102834
Unique aggregates announced from the ARIN address blocks: 38366
ARIN Region origin ASes present in the Internet Routing Table: 13282
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5139
ARIN Region transit ASes present in the Internet Routing Table: 1318
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 706099589
Equivalent to 42 /8s, 22 /16s and 57 /24s
Percentage of available ARIN address space announced: 61.9
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: 70594
Total RIPE prefixes after maximum aggregation: 40330
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64291
Unique aggregates announced from the RIPE address blocks: 41669
RIPE Region origin ASes present in the Internet Routing Table: 13508
RIPE Prefixes per ASN: 4.76
RIPE Region origin ASes announcing only one prefix: 7015
RIPE Region transit ASes present in the Internet Routing Table: 2035
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 399792178
Equivalent to 23 /8s, 212 /16s and 88 /24s
Percentage of available RIPE address space announced: 74.5
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 2/8, 25/8, 46/8, 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: 28172
Total LACNIC prefixes after maximum aggregation: 6259
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 26465
Unique aggregates announced from the LACNIC address blocks: 13224
LACNIC Region origin ASes present in the Internet Routing Table: 1185
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 373
LACNIC Region transit ASes present in the Internet Routing Table: 192
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 66540048
Equivalent to 3 /8s, 247 /16s and 82 /24s
Percentage of available LACNIC address space announced: 66.1
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: 5886
Total AfriNIC prefixes after maximum aggregation: 1556
AfriNIC Deaggregation factor: 3.78
Prefixes being announced from the AfriNIC address blocks: 4258
Unique aggregates announced from the AfriNIC address blocks: 1521
AfriNIC Region origin ASes present in the Internet Routing Table: 318
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 67
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12421632
Equivalent to 0 /8s, 189 /16s and 138 /24s
Percentage of available AfriNIC address space announced: 37.0
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 1590 6995 447 Korea Telecom (KIX)
17488 1512 136 104 Hathway IP Over Cable Interne
4755 1263 292 142 Videsh Sanchar Nigam Ltd. Aut
9583 1108 87 534 Sify Limited
18101 977 204 34 Reliance Infocom Ltd Internet
4134 951 18168 391 CHINANET-BACKBONE
23577 892 33 745 KRNIC
7545 838 198 97 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
4808 774 1458 173 CNCGROUP IP network: China169
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 4169 3627 313 bellsouth.net, inc.
4323 3696 1049 387 Time Warner Telecom
20115 2037 1482 671 Charter Communications
1785 1746 714 138 AppliedTheory Corporation
7018 1494 9962 1046 AT&T WorldNet Services
6478 1431 285 257 AT&T Worldnet Services
2386 1323 644 960 AT&T Data Communications Serv
3356 1238 10964 441 Level 3 Communications, LLC
11492 1123 208 12 Cable One
22773 1104 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
702 622 1823 346 UUNET - Commercial IP service
9116 506 296 30 Goldenlines main autonomous s
30890 493 93 202 Evolva Telecom
3292 446 1900 393 TDC Tele Danmark
12479 425 578 6 Uni2 Autonomous System
35805 391 40 5 United Telecom AS
3301 380 1412 308 TeliaNet Sweden
9198 372 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 353 7067 303 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 2321 339 91 Telecom Argentina Stet-France
8151 1478 2899 244 Uninet S.A. de C.V.
10620 1014 227 95 TVCABLE BOGOTA
28573 713 622 66 Types of queries are: POCs, o
22047 540 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
7738 446 862 30 Telecomunicacoes da Bahia S.A
11172 441 99 71 Alestra
16735 429 124 11 Companhia de Telecomunicacoes
6471 423 96 31 ENTEL CHILE 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
8452 978 188 7 TEDATA
24863 939 97 62 LINKdotNET AS number
3741 272 856 234 The Internet Solution
2018 197 187 116 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
5713 118 520 69 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 4169 3627 313 bellsouth.net, inc.
4323 3696 1049 387 Time Warner Telecom
7303 2321 339 91 Telecom Argentina Stet-France
20115 2037 1482 671 Charter Communications
1785 1746 714 138 AppliedTheory Corporation
4766 1590 6995 447 Korea Telecom (KIX)
17488 1512 136 104 Hathway IP Over Cable Interne
7018 1494 9962 1046 AT&T WorldNet Services
8151 1478 2899 244 Uninet S.A. de C.V.
6478 1431 285 257 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
4323 3696 3309 Time Warner Telecom
7303 2321 2230 Telecom Argentina Stet-France
1785 1746 1608 AppliedTheory Corporation
17488 1512 1408 Hathway IP Over Cable Interne
20115 2037 1366 Charter Communications
8151 1478 1234 Uninet S.A. de C.V.
6478 1431 1174 AT&T Worldnet Services
4766 1590 1143 Korea Telecom (KIX)
4755 1263 1121 Videsh Sanchar Nigam Ltd. Aut
11492 1123 1111 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
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
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 /10:24 /11:63 /12:179
/13:357 /14:629 /15:1206 /16:10700 /17:4930 /18:8497
/19:17699 /20:21196 /21:21302 /22:28356 /23:27417 /24:159352
/25:811 /26:1018 /27:503 /28:482 /29:760 /30:846
/31:3 /32:320
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2700 4169 bellsouth.net, inc.
4323 2357 3696 Time Warner Telecom
7303 1803 2321 Telecom Argentina Stet-France
17488 1266 1512 Hathway IP Over Cable Interne
4766 1264 1590 Korea Telecom (KIX)
1785 1213 1746 AppliedTheory Corporation
11492 1051 1123 Cable One
20115 1046 2037 Charter Communications
18566 1043 1062 Covad Communications
9583 960 1108 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:231 12:2161 13:7 15:21
16:3 17:5 20:36 24:1193 32:151 34:2
38:604 40:97 41:1706 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:38 58:610
59:638 60:461 61:1077 62:1077 63:2031 64:3760
65:2404 66:4152 67:1790 68:986 69:2772 70:568
71:168 72:1674 73:2 74:1955 75:182 76:321
77:875 78:600 79:396 80:929 81:806 82:553
83:445 84:534 85:1039 86:395 87:684 88:393
89:1495 90:58 91:2568 92:404 93:1238 94:1183
95:1102 96:175 97:267 98:294 99:30 109:7
110:205 111:437 112:137 113:154 114:260 115:342
116:1131 117:566 118:323 119:778 120:127 121:780
122:1285 123:768 124:1051 125:1351 128:222 129:217
130:174 131:424 132:75 133:10 134:174 135:42
136:241 137:164 138:176 139:95 140:440 141:121
142:383 143:337 144:377 145:49 146:389 147:161
148:531 149:293 150:209 151:183 152:216 153:162
154:2 155:267 156:165 157:308 158:113 159:354
160:291 161:164 162:271 163:165 164:280 165:522
166:474 167:372 168:794 169:165 170:503 171:44
172:2 173:415 174:335 175:1 178:1 180:26
182:1 186:153 187:194 188:1008 189:692 190:3428
192:5807 193:4408 194:3404 195:2904 196:1141 198:3563
199:3357 200:5520 201:1457 202:8011 203:8286 204:3929
205:2306 206:2452 207:2992 208:3962 209:3499 210:2590
211:1156 212:1661 213:1699 214:183 215:40 216:4440
217:1319 218:418 219:481 220:1135 221:443 222:321
End of report