Routing Table Report 00:00 GMT Thu 20 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: 324320
Prefixes after maximum aggregation: 147725
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 156992
Total ASes present in the Internet Routing Table: 34081
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 29456
Origin ASes announcing only one prefix: 14355
Transit ASes present in the Internet Routing Table: 4625
Transit-only ASes present in the Internet Routing Table: 108
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: 424
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 573
Prefixes from 32-bit ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2221563667
Equivalent to 132 /8s, 106 /16s and 95 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.3
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: 154798
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75409
Total APNIC prefixes after maximum aggregation: 26016
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72514
Unique aggregates announced from the APNIC address blocks: 32332
APNIC Region origin ASes present in the Internet Routing Table: 4029
APNIC Prefixes per ASN: 18.00
APNIC Region origin ASes announcing only one prefix: 1121
APNIC Region transit ASes present in the Internet Routing Table: 628
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 519896034
Equivalent to 30 /8s, 252 /16s and 251 /24s
Percentage of available APNIC address space announced: 77.5
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: 136125
Total ARIN prefixes after maximum aggregation: 69756
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108119
Unique aggregates announced from the ARIN address blocks: 41464
ARIN Region origin ASes present in the Internet Routing Table: 13723
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5292
ARIN Region transit ASes present in the Internet Routing Table: 1392
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731175201
Equivalent to 43 /8s, 148 /16s and 217 /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: 76704
Total RIPE prefixes after maximum aggregation: 43146
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69623
Unique aggregates announced from the RIPE address blocks: 44059
RIPE Region origin ASes present in the Internet Routing Table: 14486
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7432
RIPE Region transit ASes present in the Internet Routing Table: 2221
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 426313268
Equivalent to 25 /8s, 105 /16s and 6 /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: 28507
Total LACNIC prefixes after maximum aggregation: 6796
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 26919
Unique aggregates announced from the LACNIC address blocks: 14018
LACNIC Region origin ASes present in the Internet Routing Table: 1293
LACNIC Prefixes per ASN: 20.82
LACNIC Region origin ASes announcing only one prefix: 402
LACNIC Region transit ASes present in the Internet Routing Table: 232
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73199112
Equivalent to 4 /8s, 92 /16s and 238 /24s
Percentage of available LACNIC address space announced: 72.7
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: 7300
Total AfriNIC prefixes after maximum aggregation: 1868
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5587
Unique aggregates announced from the AfriNIC address blocks: 1679
AfriNIC Region origin ASes present in the Internet Routing Table: 365
AfriNIC Prefixes per ASN: 15.31
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 84
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17844480
Equivalent to 1 /8s, 16 /16s and 73 /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 1690 8421 478 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 293 150 Videsh Sanchar Nigam Ltd. Aut
7545 1209 232 105 TPG Internet Pty Ltd
17974 1056 281 18 PT TELEKOMUNIKASI INDONESIA
9583 990 73 484 Sify Limited
4134 912 21194 404 CHINANET-BACKBONE
24560 898 304 167 Bharti Airtel Ltd.
4808 808 1517 203 CNCGROUP IP network: China169
9829 790 680 33 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 3931 3733 287 bellsouth.net, inc.
4323 3843 1116 405 Time Warner Telecom
1785 1780 698 131 AppliedTheory Corporation
20115 1624 1508 649 Charter Communications
7018 1542 5763 979 AT&T WorldNet Services
2386 1278 551 917 AT&T Data Communications Serv
6478 1247 257 98 AT&T Worldnet Services
3356 1209 10871 405 Level 3 Communications, LLC
22773 1154 2604 64 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 476 2027 394 TDC Tele Danmark
30890 441 116 207 Evolva Telecom
3216 426 133 30 Teleross, Moscow, Russia
702 415 1869 329 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 395 117 18 Bulgarian Telecommunication C
3301 364 1413 321 TeliaNet Sweden
3320 363 7072 316 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 1601 2965 241 Uninet S.A. de C.V.
10620 1042 234 152 TVCABLE BOGOTA
28573 871 720 76 Types of queries are: POCs, o
7303 728 375 103 Telecom Argentina Stet-France
6503 577 173 209 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 1262 445 10 TEDATA
24863 714 147 39 LINKdotNET AS number
36992 634 276 180 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 231 112 TENET-1
33776 189 11 21 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 175 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 132 490 17 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 3931 3733 287 bellsouth.net, inc.
4323 3843 1116 405 Time Warner Telecom
1785 1780 698 131 AppliedTheory Corporation
4766 1690 8421 478 Korea Telecom (KIX)
20115 1624 1508 649 Charter Communications
8151 1601 2965 241 Uninet S.A. de C.V.
7018 1542 5763 979 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 293 150 Videsh Sanchar Nigam Ltd. Aut
2386 1278 551 917 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 3843 3438 Time Warner Telecom
1785 1780 1649 AppliedTheory Corporation
8151 1601 1360 Uninet S.A. de C.V.
8452 1262 1252 TEDATA
4766 1690 1212 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1305 1155 Videsh Sanchar Nigam Ltd. Aut
6478 1247 1149 AT&T Worldnet Services
7545 1209 1104 TPG Internet Pty Ltd
22773 1154 1090 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
31.1.0.0/21 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
/13:404 /14:694 /15:1272 /16:11100 /17:5400 /18:9105
/19:18591 /20:23006 /21:22887 /22:29667 /23:29490 /24:170209
/25:350 /26:514 /27:217 /28:346 /29:164 /30:337
/31:0 /32:250
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2516 3931 bellsouth.net, inc.
4323 2333 3843 Time Warner Telecom
4766 1324 1690 Korea Telecom (KIX)
1785 1246 1780 AppliedTheory Corporation
8452 1140 1262 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
18566 1040 1059 Covad Communications
10620 958 1042 TVCABLE BOGOTA
7018 932 1542 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 12:2018 13:10 14:1
15:23 16:3 17:8 20:21 24:1460 27:96
31:1 32:137 33:12 38:673 40:98 41:2457
44:3 47:26 52:6 55:6 56:2 57:36
58:727 59:502 60:434 61:1088 62:1074 63:1984
64:3866 65:2370 66:4246 67:1869 68:1127 69:2844
70:714 71:258 72:1867 73:2 74:2298 75:253
76:309 77:876 78:638 79:421 80:1021 81:806
82:507 83:464 84:726 85:1081 86:473 87:793
88:332 89:1718 90:89 91:2797 92:494 93:1118
94:1434 95:600 96:279 97:318 98:576 99:28
108:32 109:476 110:352 111:505 112:261 113:285
114:406 115:576 116:1036 117:637 118:437 119:956
120:143 121:728 122:1439 123:895 124:1122 125:1293
128:210 129:211 130:191 131:560 132:246 133:17
134:195 135:45 136:229 137:172 138:255 139:104
140:481 141:137 142:354 143:389 144:479 145:53
146:427 147:164 148:610 149:288 150:152 151:169
152:261 153:167 154:2 155:325 156:154 157:326
158:107 159:375 160:313 161:185 162:262 163:178
164:407 165:346 166:476 167:393 168:785 169:160
170:706 171:51 172:2 173:737 174:652 175:103
176:1 178:109 180:472 182:61 183:251 184:77
186:366 187:336 188:1349 189:776 190:3664 192:5783
193:4717 194:3419 195:2928 196:1217 197:1 198:3575
199:3438 200:5381 201:1519 202:8137 203:8314 204:4061
205:2332 206:2545 207:3037 208:3920 209:3436 210:2514
211:1267 212:1801 213:1754 214:658 215:70 216:4629
217:1562 218:497 219:401 220:1111 221:401 222:334
223:1
End of report