Routing Table Report 00:00 GMT Tue 09 Aug, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 370346
Prefixes after maximum aggregation: 167006
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182107
Total ASes present in the Internet Routing Table: 38425
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31911
Origin ASes announcing only one prefix: 15349
Transit ASes present in the Internet Routing Table: 5204
Transit-only ASes present in the Internet Routing Table: 147
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4122
Unregistered ASNs in the Routing Table: 602
Number of 32-bit ASNs allocated by the RIRs: 1628
Number of 32-bit ASNs visible in the Routing Table: 1310
Prefixes from 32-bit ASNs in the Routing Table: 3022
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2490896391
Equivalent to 148 /8s, 120 /16s and 16 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153581
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89718
Total APNIC prefixes after maximum aggregation: 29099
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 86300
Unique aggregates announced from the APNIC address blocks: 37667
APNIC Region origin ASes present in the Internet Routing Table: 4511
APNIC Prefixes per ASN: 19.13
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 71
Number of APNIC addresses announced to Internet: 623350016
Equivalent to 37 /8s, 39 /16s and 145 /24s
Percentage of available APNIC address space announced: 79.1
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, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 145319
Total ARIN prefixes after maximum aggregation: 75200
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116852
Unique aggregates announced from the ARIN address blocks: 46885
ARIN Region origin ASes present in the Internet Routing Table: 14562
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5587
ARIN Region transit ASes present in the Internet Routing Table: 1531
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803398936
Equivalent to 47 /8s, 226 /16s and 229 /24s
Percentage of available ARIN address space announced: 63.8
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, 23/8, 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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 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: 89525
Total RIPE prefixes after maximum aggregation: 49734
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81991
Unique aggregates announced from the RIPE address blocks: 53345
RIPE Region origin ASes present in the Internet Routing Table: 15873
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7914
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 942
Number of RIPE addresses announced to Internet: 485768652
Equivalent to 28 /8s, 244 /16s and 61 /24s
Percentage of available RIPE address space announced: 78.3
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, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34243
Total LACNIC prefixes after maximum aggregation: 7630
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33515
Unique aggregates announced from the LACNIC address blocks: 17305
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.48
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 281
Number of LACNIC addresses announced to Internet: 87455488
Equivalent to 5 /8s, 54 /16s and 119 /24s
Percentage of available LACNIC address space announced: 57.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8310
Total AfriNIC prefixes after maximum aggregation: 2001
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6579
Unique aggregates announced from the AfriNIC address blocks: 2033
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26921216
Equivalent to 1 /8s, 154 /16s and 201 /24s
Percentage of available AfriNIC address space announced: 40.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1933 11070 648 Korea Telecom (KIX)
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1558 301 84 TPG Internet Pty Ltd
4755 1529 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1410 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1113 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1054 2110 289 CNCGROUP IP network: China169
17488 999 190 121 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1817 681 122 AppliedTheory Corporation
7029 1633 1018 204 Windstream Communications Inc
4323 1613 1097 398 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1366 7069 895 AT&T WorldNet Services
2386 1252 520 902 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1032 797 189 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 183 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 512 1788 316 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 52 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1566 289 164 TVCABLE BOGOTA
8151 1391 2731 354 Uninet S.A. de C.V.
28573 1266 996 67 Types of queries are: POCs, o
7303 1066 578 174 Telecom Argentina Stet-France
6503 770 450 77 AVANTEL, S.A.
14420 703 56 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 532 232 97 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 804 147 41 LINKdotNET AS number
8452 773 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 234 32 6 Sudatel Internet Exchange Aut
33776 225 12 10 Starcomms Nigeria Limited
24835 176 78 10 RAYA Telecom - Egypt
29571 159 17 12 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 231 bellsouth.net, inc.
23456 3022 713 1628 >>UNKNOWN<<
4766 1933 11070 648 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1817 681 122 AppliedTheory Corporation
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1633 1018 204 Windstream Communications Inc
4323 1613 1097 398 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1566 289 164 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1787 1756 PT TELEKOMUNIKASI INDONESIA
1785 1817 1695 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1558 1474 TPG Internet Pty Ltd
7029 1633 1429 Windstream Communications Inc
7552 1410 1403 Vietel Corporation
10620 1566 1402 TVCABLE BOGOTA
23456 3022 1394 >>UNKNOWN<<
4755 1529 1361 Videsh Sanchar Nigam Ltd. Aut
22773 1405 1315 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.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 /9:12 /10:27 /11:80 /12:233
/13:465 /14:806 /15:1443 /16:12162 /17:6155 /18:10190
/19:20059 /20:27581 /21:26947 /22:35465 /23:34620 /24:192409
/25:86 /26:85 /27:113 /28:228 /29:68 /30:519
/31:88 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3586 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1476 3022 >>UNKNOWN<<
10620 1461 1566 TVCABLE BOGOTA
7029 1319 1633 Windstream Communications Inc
11492 1095 1141 Cable One
7011 1058 1160 Citizens Utilities
1785 1054 1817 AppliedTheory Corporation
6478 935 964 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:351 2:48 4:19 5:1 6:3 8:339
12:1964 13:1 14:499 15:15 16:3 17:5
20:10 23:19 24:1686 27:861 31:520 32:149
33:4 34:2 36:4 38:729 40:106 41:2586
42:38 44:3 46:1076 47:3 49:201 50:388
52:13 54:2 55:4 56:2 57:45 58:859
59:495 60:378 61:1189 62:1075 63:1954 64:4052
65:2301 66:3954 67:1924 68:1272 69:3158 70:824
71:373 72:1897 73:1 74:2479 75:340 76:350
77:863 78:709 79:487 80:1129 81:847 82:519
83:470 84:694 85:1083 86:532 87:840 88:339
89:1553 90:224 91:4024 92:528 93:1124 94:1336
95:875 96:424 97:265 98:931 99:37 101:83
103:183 106:79 107:30 108:80 109:1050 110:627
111:729 112:309 113:409 114:561 115:692 116:1011
117:686 118:865 119:1184 120:210 121:701 122:1612
123:982 124:1377 125:1331 128:247 129:175 130:170
131:582 132:105 133:21 134:213 135:52 136:215
137:139 138:296 139:128 140:486 141:271 142:383
143:421 144:489 145:58 146:457 147:227 148:609
149:253 150:161 151:190 152:352 153:182 154:5
155:400 156:199 157:355 158:138 159:455 160:318
161:206 162:310 163:162 164:515 165:395 166:534
167:431 168:746 169:154 170:842 171:81 172:1
173:1645 174:622 175:393 176:162 177:201 178:1010
180:927 181:26 182:515 183:237 184:363 185:1
186:1356 187:744 188:906 189:969 190:5093 192:5944
193:4994 194:3552 195:3144 196:1204 197:114 198:3602
199:4027 200:5533 201:1467 202:8438 203:8462 204:4262
205:2334 206:2736 207:2807 208:4135 209:3497 210:2692
211:1415 212:2137 213:1775 214:792 215:69 216:4952
217:1631 218:533 219:349 220:1235 221:487 222:362
223:231
End of report
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