Routing Table Report 00:00 GMT Mon 31 May, 2010
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: 324465
Prefixes after maximum aggregation: 147839
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 156699
Total ASes present in the Internet Routing Table: 34156
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 29505
Origin ASes announcing only one prefix: 14362
Transit ASes present in the Internet Routing Table: 4651
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 34
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 418
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 595
Prefixes from 32-bit ASNs in the Routing Table: 40
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 167
Number of addresses announced to Internet: 2258895794
Equivalent to 134 /8s, 164 /16s and 3 /24s
Percentage of available address space announced: 60.9
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 83.0
Total number of prefixes smaller than registry allocations: 154573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75682
Total APNIC prefixes after maximum aggregation: 26014
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 72767
Unique aggregates announced from the APNIC address blocks: 32455
APNIC Region origin ASes present in the Internet Routing Table: 4058
APNIC Prefixes per ASN: 17.93
APNIC Region origin ASes announcing only one prefix: 1136
APNIC Region transit ASes present in the Internet Routing Table: 644
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 520627937
Equivalent to 31 /8s, 8 /16s and 38 /24s
Percentage of available APNIC address space announced: 77.6
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 1/8, 14/8, 27/8, 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, 133/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 135864
Total ARIN prefixes after maximum aggregation: 69685
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107817
Unique aggregates announced from the ARIN address blocks: 40909
ARIN Region origin ASes present in the Internet Routing Table: 13747
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5294
ARIN Region transit ASes present in the Internet Routing Table: 1402
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731623201
Equivalent to 43 /8s, 155 /16s and 175 /24s
Percentage of available ARIN address space announced: 62.3
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, 50/8, 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, 107/8,
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: 76708
Total RIPE prefixes after maximum aggregation: 43239
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 69763
Unique aggregates announced from the RIPE address blocks: 44146
RIPE Region origin ASes present in the Internet Routing Table: 14508
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7429
RIPE Region transit ASes present in the Internet Routing Table: 2229
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 34
Number of RIPE addresses announced to Internet: 428232916
Equivalent to 25 /8s, 134 /16s and 80 /24s
Percentage of available RIPE address space announced: 75.1
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, 31/8, 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, 176/8, 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: 28571
Total LACNIC prefixes after maximum aggregation: 6865
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 26988
Unique aggregates announced from the LACNIC address blocks: 14070
LACNIC Region origin ASes present in the Internet Routing Table: 1293
LACNIC Prefixes per ASN: 20.87
LACNIC Region origin ASes announcing only one prefix: 395
LACNIC Region transit ASes present in the Internet Routing Table: 232
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 73273352
Equivalent to 4 /8s, 94 /16s and 16 /24s
Percentage of available LACNIC address space announced: 72.8
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: 7347
Total AfriNIC prefixes after maximum aggregation: 1859
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5646
Unique aggregates announced from the AfriNIC address blocks: 1666
AfriNIC Region origin ASes present in the Internet Routing Table: 366
AfriNIC Prefixes per ASN: 15.43
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 18708992
Equivalent to 1 /8s, 29 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 55.8
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 1688 8421 477 Korea Telecom (KIX)
17488 1315 140 123 Hathway IP Over Cable Interne
4755 1307 293 150 Videsh Sanchar Nigam Ltd. Aut
7545 1279 232 104 TPG Internet Pty Ltd
17974 1066 281 19 PT TELEKOMUNIKASI INDONESIA
9583 1002 74 491 Sify Limited
24560 907 306 171 Bharti Airtel Ltd.
4134 853 21259 406 CHINANET-BACKBONE
9829 797 681 34 BSNL National Internet Backbo
4808 776 1455 183 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 3915 3716 282 bellsouth.net, inc.
4323 3366 1098 404 Time Warner Telecom
1785 1785 698 131 AppliedTheory Corporation
20115 1613 1500 650 Charter Communications
7018 1484 5706 947 AT&T WorldNet Services
2386 1279 552 917 AT&T Data Communications Serv
6478 1254 258 94 AT&T Worldnet Services
3356 1200 10849 399 Level 3 Communications, LLC
22773 1155 2604 64 Cox Communications, Inc.
11492 1148 207 70 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
9116 530 328 32 Goldenlines main autonomous s
3292 476 2028 396 TDC Tele Danmark
30890 444 116 208 Evolva Telecom
3216 424 148 30 Teleross, Moscow, Russia
702 414 1870 329 UUNET - Commercial IP service
35805 405 56 6 United Telecom AS
8551 402 355 38 Bezeq International
8866 400 117 18 Bulgarian Telecommunication C
3301 367 1414 323 TeliaNet Sweden
3320 364 7072 317 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
8151 1564 2981 238 Uninet S.A. de C.V.
10620 1050 236 151 TVCABLE BOGOTA
28573 893 724 77 Types of queries are: POCs, o
7303 731 378 107 Telecom Argentina Stet-France
6503 589 174 208 AVANTEL, S.A.
22047 545 310 15 Types of queries are: POCs, o
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 476 308 56 Instituto Costarricense de El
3816 473 204 73 COLOMBIA TELECOMUNICACIONES S
14117 455 30 13 Telefonica del Sur 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 1255 445 10 TEDATA
24863 712 147 38 LINKdotNET AS number
36992 636 278 186 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 230 111 TENET-1
33776 210 11 14 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 176 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 Vodacom
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 3915 3716 282 bellsouth.net, inc.
4323 3366 1098 404 Time Warner Telecom
1785 1785 698 131 AppliedTheory Corporation
4766 1688 8421 477 Korea Telecom (KIX)
20115 1613 1500 650 Charter Communications
8151 1564 2981 238 Uninet S.A. de C.V.
7018 1484 5706 947 AT&T WorldNet Services
17488 1315 140 123 Hathway IP Over Cable Interne
4755 1307 293 150 Videsh Sanchar Nigam Ltd. Aut
2386 1279 552 917 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
4323 3366 2962 Time Warner Telecom
1785 1785 1654 AppliedTheory Corporation
8151 1564 1326 Uninet S.A. de C.V.
8452 1255 1245 TEDATA
4766 1688 1211 Korea Telecom (KIX)
17488 1315 1192 Hathway IP Over Cable Interne
7545 1279 1175 TPG Internet Pty Ltd
6478 1254 1160 AT&T Worldnet Services
4755 1307 1157 Videsh Sanchar Nigam Ltd. Aut
22773 1155 1091 Cox Communications, Inc.
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 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
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.0.0.0/8 237 Merit Network
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
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 /10:26 /11:67 /12:194
/13:403 /14:693 /15:1276 /16:11103 /17:5396 /18:9123
/19:18601 /20:23042 /21:22922 /22:29769 /23:29614 /24:169993
/25:356 /26:562 /27:220 /28:313 /29:171 /30:343
/31:0 /32:246
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2511 3915 bellsouth.net, inc.
4323 1851 3366 Time Warner Telecom
4766 1322 1688 Korea Telecom (KIX)
1785 1251 1785 AppliedTheory Corporation
8452 1139 1255 TEDATA
11492 1062 1148 Cable One
17488 1062 1315 Hathway IP Over Cable Interne
18566 1040 1059 Covad Communications
10620 966 1050 TVCABLE BOGOTA
7018 896 1484 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 4:13 8:266 12:2017 13:10 14:1
15:23 16:3 17:8 20:21 24:1442 27:111
31:1 32:137 33:12 38:676 40:98 41:2486
44:3 47:26 52:8 55:6 56:2 57:36
58:775 59:504 60:456 61:1082 62:1084 63:1977
64:3628 65:2348 66:4291 67:1858 68:1114 69:2880
70:715 71:258 72:1875 73:2 74:2110 75:255
76:309 77:865 78:628 79:436 80:1002 81:812
82:499 83:457 84:730 85:1070 86:473 87:795
88:338 89:1720 90:90 91:2810 92:511 93:1121
94:1335 95:606 96:280 97:320 98:593 99:28
108:32 109:500 110:361 111:502 112:263 113:298
114:411 115:579 116:1033 117:651 118:452 119:936
120:145 121:742 122:1434 123:911 124:1125 125:1315
128:211 129:212 130:193 131:558 132:247 133:17
134:196 135:45 136:229 137:172 138:256 139:115
140:484 141:136 142:355 143:386 144:476 145:53
146:424 147:166 148:612 149:291 150:148 151:169
152:261 153:168 154:2 155:326 156:156 157:326
158:107 159:374 160:312 161:179 162:262 163:180
164:408 165:334 166:474 167:397 168:785 169:165
170:711 171:53 172:2 173:768 174:654 175:102
176:1 178:155 180:476 182:79 183:128 184:77
186:392 187:341 188:1248 189:793 190:3671 192:5784
193:4723 194:3426 195:2941 196:1207 198:3584 199:3437
200:5354 201:1515 202:8192 203:8324 204:4069 205:2335
206:2528 207:3041 208:3896 209:3414 210:2522 211:1268
212:1814 213:1765 214:655 215:69 216:4683 217:1554
218:494 219:379 220:1128 221:400 222:336 223:1
End of report