Routing Table Report 00:00 GMT Wed 19 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: 324116
Prefixes after maximum aggregation: 147685
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 156848
Total ASes present in the Internet Routing Table: 34036
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 29429
Origin ASes announcing only one prefix: 14336
Transit ASes present in the Internet Routing Table: 4607
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 408
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 573
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2220799763
Equivalent to 132 /8s, 94 /16s and 183 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.9
Total number of prefixes smaller than registry allocations: 154745
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75346
Total APNIC prefixes after maximum aggregation: 26031
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 72453
Unique aggregates announced from the APNIC address blocks: 32297
APNIC Region origin ASes present in the Internet Routing Table: 4022
APNIC Prefixes per ASN: 18.01
APNIC Region origin ASes announcing only one prefix: 1117
APNIC Region transit ASes present in the Internet Routing Table: 629
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 519360482
Equivalent to 30 /8s, 244 /16s and 207 /24s
Percentage of available APNIC address space announced: 77.4
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 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: 135908
Total ARIN prefixes after maximum aggregation: 69784
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107909
Unique aggregates announced from the ARIN address blocks: 41474
ARIN Region origin ASes present in the Internet Routing Table: 13711
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5284
ARIN Region transit ASes present in the Internet Routing Table: 1385
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731178529
Equivalent to 43 /8s, 148 /16s and 230 /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: 76618
Total RIPE prefixes after maximum aggregation: 43082
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69535
Unique aggregates announced from the RIPE address blocks: 43964
RIPE Region origin ASes present in the Internet Routing Table: 14466
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7426
RIPE Region transit ASes present in the Internet Routing Table: 2212
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 426214452
Equivalent to 25 /8s, 103 /16s and 132 /24s
Percentage of available RIPE address space announced: 74.7
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: 28656
Total LACNIC prefixes after maximum aggregation: 6798
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 27057
Unique aggregates announced from the LACNIC address blocks: 14050
LACNIC Region origin ASes present in the Internet Routing Table: 1290
LACNIC Prefixes per ASN: 20.97
LACNIC Region origin ASes announcing only one prefix: 399
LACNIC Region transit ASes present in the Internet Routing Table: 230
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73127944
Equivalent to 4 /8s, 91 /16s and 216 /24s
Percentage of available LACNIC address space announced: 72.6
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: 7329
Total AfriNIC prefixes after maximum aggregation: 1857
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5626
Unique aggregates announced from the AfriNIC address blocks: 1653
AfriNIC Region origin ASes present in the Internet Routing Table: 363
AfriNIC Prefixes per ASN: 15.50
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17907200
Equivalent to 1 /8s, 17 /16s and 62 /24s
Percentage of available AfriNIC address space announced: 53.4
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 1316 140 123 Hathway IP Over Cable Interne
4755 1304 292 149 Videsh Sanchar Nigam Ltd. Aut
7545 1198 232 105 TPG Internet Pty Ltd
17974 1046 281 18 PT TELEKOMUNIKASI INDONESIA
9583 994 73 484 Sify Limited
4134 913 21190 403 CHINANET-BACKBONE
24560 898 304 167 Bharti Airtel Ltd.
4808 807 1517 203 CNCGROUP IP network: China169
9829 791 681 34 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 3928 3721 301 bellsouth.net, inc.
4323 3844 1116 405 Time Warner Telecom
1785 1783 699 131 AppliedTheory Corporation
20115 1623 1507 650 Charter Communications
7018 1541 5763 978 AT&T WorldNet Services
2386 1288 551 918 AT&T Data Communications Serv
6478 1246 257 97 AT&T Worldnet Services
3356 1211 10887 406 Level 3 Communications, LLC
22773 1170 2606 72 Cox Communications, Inc.
11492 1146 210 285 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 625 56 6 United Telecom AS
9116 529 328 32 Goldenlines main autonomous s
3292 475 2027 394 TDC Tele Danmark
30890 441 116 207 Evolva Telecom
3216 428 133 30 Teleross, Moscow, Russia
702 413 1869 327 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 395 117 18 Bulgarian Telecommunication C
3301 364 1413 321 TeliaNet Sweden
3320 362 7072 315 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 1596 2964 241 Uninet S.A. de C.V.
10620 1037 233 151 TVCABLE BOGOTA
28573 876 720 76 Types of queries are: POCs, o
7303 726 375 104 Telecom Argentina Stet-France
6503 576 173 209 AVANTEL, S.A.
22047 545 310 15 Types of queries are: POCs, o
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 477 308 49 Instituto Costarricense de El
3816 468 201 73 COLOMBIA TELECOMUNICACIONES S
14117 448 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 714 147 39 LINKdotNET AS number
36992 636 276 182 Etisalat MISR
3741 271 852 232 The Internet Solution
2018 216 231 112 TENET-1
33776 215 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 3928 3721 301 bellsouth.net, inc.
4323 3844 1116 405 Time Warner Telecom
1785 1783 699 131 AppliedTheory Corporation
4766 1689 8421 478 Korea Telecom (KIX)
20115 1623 1507 650 Charter Communications
8151 1596 2964 241 Uninet S.A. de C.V.
7018 1541 5763 978 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1304 292 149 Videsh Sanchar Nigam Ltd. Aut
2386 1288 551 918 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 3844 3439 Time Warner Telecom
1785 1783 1652 AppliedTheory Corporation
8151 1596 1355 Uninet S.A. de C.V.
8452 1255 1245 TEDATA
4766 1689 1211 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1304 1155 Videsh Sanchar Nigam Ltd. Aut
6478 1246 1149 AT&T Worldnet Services
22773 1170 1098 Cox Communications, Inc.
7545 1198 1093 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 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
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.74.128.0/20 8657 CPRM Autonomous System
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 26452 Local Communications Networks
41.223.196.0/24 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 /8:20 /9:10 /10:26 /11:67 /12:194
/13:403 /14:693 /15:1271 /16:11088 /17:5387 /18:9121
/19:18614 /20:23023 /21:22914 /22:29725 /23:29470 /24:169910
/25:349 /26:515 /27:216 /28:346 /29:164 /30:337
/31:0 /32:253
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2514 3928 bellsouth.net, inc.
4323 2334 3844 Time Warner Telecom
4766 1324 1689 Korea Telecom (KIX)
1785 1246 1783 AppliedTheory Corporation
8452 1133 1255 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
18566 1040 1059 Covad Communications
10620 953 1037 TVCABLE BOGOTA
7018 931 1541 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 8:265 12:2023 13:10 14:1
15:23 16:3 17:8 20:21 24:1442 27:62
31:1 32:137 33:12 38:672 40:98 41:2469
44:3 47:26 52:6 55:7 56:2 57:35
58:725 59:506 60:434 61:1095 62:1073 63:1984
64:3846 65:2366 66:4241 67:1850 68:1114 69:2832
70:714 71:258 72:1832 73:2 74:2296 75:253
76:306 77:875 78:639 79:421 80:1020 81:807
82:503 83:457 84:726 85:1078 86:472 87:794
88:332 89:1718 90:88 91:2794 92:486 93:1108
94:1435 95:598 96:279 97:317 98:575 99:28
108:16 109:478 110:349 111:501 112:257 113:283
114:399 115:592 116:1032 117:642 118:438 119:978
120:144 121:733 122:1439 123:897 124:1127 125:1294
128:210 129:211 130:192 131:559 132:246 133:17
134:195 135:45 136:229 137:172 138:255 139:103
140:481 141:136 142:354 143:391 144:478 145:53
146:423 147:164 148:609 149:289 150:152 151:168
152:262 153:167 154:2 155:330 156:154 157:326
158:107 159:372 160:313 161:184 162:262 163:172
164:407 165:346 166:479 167:393 168:785 169:160
170:704 171:51 172:2 173:736 174:620 175:101
176:1 178:102 180:468 182:57 183:252 184:76
186:381 187:343 188:1339 189:772 190:3664 192:5782
193:4717 194:3414 195:2930 196:1217 197:1 198:3574
199:3434 200:5360 201:1521 202:8156 203:8265 204:4061
205:2335 206:2540 207:3032 208:3922 209:3438 210:2517
211:1267 212:1800 213:1744 214:655 215:70 216:4622
217:1561 218:495 219:401 220:1108 221:401 222:331
223:1
End of report