Routing Table Report 00:00 GMT Tue 11 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: 323779
Prefixes after maximum aggregation: 147311
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 155858
Total ASes present in the Internet Routing Table: 34026
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 29372
Origin ASes announcing only one prefix: 14337
Transit ASes present in the Internet Routing Table: 4654
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 415
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 560
Prefixes from 32-bit ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 192
Number of addresses announced to Internet: 2209749907
Equivalent to 131 /8s, 182 /16s and 27 /24s
Percentage of available address space announced: 59.6
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.7
Total number of prefixes smaller than registry allocations: 154710
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75470
Total APNIC prefixes after maximum aggregation: 25993
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72241
Unique aggregates announced from the APNIC address blocks: 32218
APNIC Region origin ASes present in the Internet Routing Table: 4021
APNIC Prefixes per ASN: 17.97
APNIC Region origin ASes announcing only one prefix: 1119
APNIC Region transit ASes present in the Internet Routing Table: 640
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 513708002
Equivalent to 30 /8s, 158 /16s and 143 /24s
Percentage of available APNIC address space announced: 76.5
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: 135689
Total ARIN prefixes after maximum aggregation: 69488
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107680
Unique aggregates announced from the ARIN address blocks: 40647
ARIN Region origin ASes present in the Internet Routing Table: 13707
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5288
ARIN Region transit ASes present in the Internet Routing Table: 1411
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 726730017
Equivalent to 43 /8s, 81 /16s and 5 /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, 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: 76415
Total RIPE prefixes after maximum aggregation: 43047
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69295
Unique aggregates announced from the RIPE address blocks: 43934
RIPE Region origin ASes present in the Internet Routing Table: 14454
RIPE Prefixes per ASN: 4.79
RIPE Region origin ASes announcing only one prefix: 7420
RIPE Region transit ASes present in the Internet Routing Table: 2228
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 425450164
Equivalent to 25 /8s, 91 /16s and 218 /24s
Percentage of available RIPE address space announced: 74.6
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: 28802
Total LACNIC prefixes after maximum aggregation: 6806
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 27205
Unique aggregates announced from the LACNIC address blocks: 13978
LACNIC Region origin ASes present in the Internet Routing Table: 1285
LACNIC Prefixes per ASN: 21.17
LACNIC Region origin ASes announcing only one prefix: 405
LACNIC Region transit ASes present in the Internet Routing Table: 226
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 72916744
Equivalent to 4 /8s, 88 /16s and 159 /24s
Percentage of available LACNIC address space announced: 72.4
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: 7137
Total AfriNIC prefixes after maximum aggregation: 1822
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 5442
Unique aggregates announced from the AfriNIC address blocks: 1651
AfriNIC Region origin ASes present in the Internet Routing Table: 360
AfriNIC Prefixes per ASN: 15.12
AfriNIC Region origin ASes announcing only one prefix: 105
AfriNIC Region transit ASes present in the Internet Routing Table: 82
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17843456
Equivalent to 1 /8s, 16 /16s and 69 /24s
Percentage of available AfriNIC address space announced: 53.2
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 1689 8421 478 Korea Telecom (KIX)
17488 1314 140 123 Hathway IP Over Cable Interne
4755 1289 291 146 Videsh Sanchar Nigam Ltd. Aut
7545 1193 232 104 TPG Internet Pty Ltd
17974 1034 281 18 PT TELEKOMUNIKASI INDONESIA
9583 994 73 489 Sify Limited
4134 929 20743 402 CHINANET-BACKBONE
24560 892 304 166 Bharti Airtel Ltd.
9829 795 680 41 BSNL National Internet Backbo
4808 777 1455 189 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 3928 3721 287 bellsouth.net, inc.
4323 3834 1116 406 Time Warner Telecom
1785 1782 699 131 AppliedTheory Corporation
20115 1621 1507 650 Charter Communications
7018 1536 5762 970 AT&T WorldNet Services
2386 1302 569 931 AT&T Data Communications Serv
6478 1237 256 107 AT&T Worldnet Services
3356 1224 10900 418 Level 3 Communications, LLC
22773 1154 2606 72 Cox Communications, Inc.
11492 1150 222 14 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
35805 617 56 6 United Telecom AS
9116 526 296 31 Goldenlines main autonomous s
3292 472 2027 393 TDC Tele Danmark
30890 438 100 205 Evolva Telecom
3216 423 133 30 Teleross, Moscow, Russia
702 415 1869 330 UUNET - Commercial IP service
8551 403 356 37 Bezeq International
8866 396 117 18 Bulgarian Telecommunication C
3301 365 1413 321 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 1595 2965 239 Uninet S.A. de C.V.
10620 1031 230 148 TVCABLE BOGOTA
28573 907 758 83 Types of queries are: POCs, o
7303 733 375 101 Telecom Argentina Stet-France
6503 565 172 212 AVANTEL, S.A.
22047 548 310 15 Types of queries are: POCs, o
18881 545 268 11 Global Village Telecom
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 477 308 49 Instituto Costarricense de El
3816 461 195 70 COLOMBIA TELECOMUNICACIONES S
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 1102 445 10 TEDATA
24863 707 147 42 LINKdotNET AS number
36992 626 275 170 Etisalat MISR
3741 273 852 232 The Internet Solution
2018 217 231 113 TENET-1
33776 214 11 14 Starcomms Nigeria Limited
24835 183 78 10 RAYA Telecom - Egypt
6713 176 167 12 Itissalat Al-MAGHRIB
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 3928 3721 287 bellsouth.net, inc.
4323 3834 1116 406 Time Warner Telecom
1785 1782 699 131 AppliedTheory Corporation
4766 1689 8421 478 Korea Telecom (KIX)
20115 1621 1507 650 Charter Communications
8151 1595 2965 239 Uninet S.A. de C.V.
7018 1536 5762 970 AT&T WorldNet Services
17488 1314 140 123 Hathway IP Over Cable Interne
2386 1302 569 931 AT&T Data Communications Serv
4755 1289 291 146 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3834 3428 Time Warner Telecom
1785 1782 1651 AppliedTheory Corporation
8151 1595 1356 Uninet S.A. de C.V.
4766 1689 1211 Korea Telecom (KIX)
17488 1314 1191 Hathway IP Over Cable Interne
4755 1289 1143 Videsh Sanchar Nigam Ltd. Aut
11492 1150 1136 Cable One
6478 1237 1130 AT&T Worldnet Services
8452 1102 1092 TEDATA
7545 1193 1089 TPG Internet Pty Ltd
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
41.202.96.0/19 29571 Ci Telecom Autonomous system
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 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
41.223.199.0/24 36990 Alkan Telecom Ltd
46.0.0.0/16 12654 RIPE NCC RIS Project
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 /8:20 /9:10 /10:25 /11:67 /12:192
/13:400 /14:688 /15:1264 /16:11079 /17:5393 /18:9112
/19:18614 /20:23001 /21:22923 /22:29679 /23:29449 /24:169706
/25:345 /26:511 /27:219 /28:338 /29:164 /30:334
/31:0 /32:246
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2514 3928 bellsouth.net, inc.
4323 2331 3834 Time Warner Telecom
4766 1324 1689 Korea Telecom (KIX)
1785 1243 1782 AppliedTheory Corporation
17488 1063 1314 Hathway IP Over Cable Interne
11492 1058 1150 Cable One
18566 1040 1059 Covad Communications
8452 992 1102 TEDATA
10620 947 1031 TVCABLE BOGOTA
7018 932 1536 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:265 12:2015 13:10 15:23 16:3
17:8 20:21 24:1449 27:55 32:137 33:12
38:667 40:97 41:2330 44:3 46:1 47:26
52:6 55:6 56:2 57:36 58:722 59:519
60:431 61:1090 62:1066 63:1983 64:3859 65:2366
66:4233 67:1841 68:1094 69:2829 70:707 71:255
72:1849 73:2 74:2288 75:250 76:308 77:864
78:629 79:408 80:987 81:799 82:499 83:453
84:733 85:1085 86:472 87:789 88:328 89:1728
90:87 91:2774 92:485 93:1116 94:1410 95:594
96:244 97:315 98:572 99:28 109:464 110:333
111:491 112:255 113:288 114:395 115:590 116:1026
117:636 118:428 119:932 120:144 121:740 122:1434
123:883 124:1123 125:1300 128:211 129:209 130:197
131:561 132:246 133:17 134:195 135:44 136:225
137:172 138:254 139:103 140:485 141:137 142:355
143:387 144:474 145:53 146:428 147:165 148:600
149:287 150:153 151:168 152:262 153:167 154:2
155:330 156:184 157:327 158:107 159:369 160:315
161:204 162:266 163:174 164:411 165:533 166:492
167:396 168:801 169:161 170:708 171:50 172:1
173:727 174:669 175:102 178:76 180:462 182:49
183:249 184:40 186:378 187:332 188:1350 189:776
190:3659 192:5774 193:4713 194:3421 195:2933 196:1203
197:1 198:3581 199:3447 200:5360 201:1518 202:8144
203:8305 204:4061 205:2343 206:2538 207:3032 208:3930
209:3432 210:2522 211:1262 212:1790 213:1760 214:660
215:70 216:4598 217:1560 218:509 219:402 220:1110
221:401 222:333
End of report