Routing Table Report 00:00 GMT Thu 04 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: 368844
Prefixes after maximum aggregation: 167344
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182149
Total ASes present in the Internet Routing Table: 38361
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31882
Origin ASes announcing only one prefix: 15316
Transit ASes present in the Internet Routing Table: 5179
Transit-only ASes present in the Internet Routing Table: 148
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: 4064
Unregistered ASNs in the Routing Table: 589
Number of 32-bit ASNs allocated by the RIRs: 1612
Number of 32-bit ASNs visible in the Routing Table: 1300
Prefixes from 32-bit ASNs in the Routing Table: 2980
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2489330687
Equivalent to 148 /8s, 96 /16s and 43 /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: 153258
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88549
Total APNIC prefixes after maximum aggregation: 29567
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 85156
Unique aggregates announced from the APNIC address blocks: 38054
APNIC Region origin ASes present in the Internet Routing Table: 4500
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 68
Number of APNIC addresses announced to Internet: 622212608
Equivalent to 37 /8s, 22 /16s and 54 /24s
Percentage of available APNIC address space announced: 78.9
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: 145205
Total ARIN prefixes after maximum aggregation: 75153
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116761
Unique aggregates announced from the ARIN address blocks: 46726
ARIN Region origin ASes present in the Internet Routing Table: 14544
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5568
ARIN Region transit ASes present in the Internet Routing Table: 1514
Average ARIN Region AS path length visible: 3.6
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: 803422232
Equivalent to 47 /8s, 227 /16s and 64 /24s
Percentage of available ARIN address space announced: 63.9
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, 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: 89312
Total RIPE prefixes after maximum aggregation: 49687
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81799
Unique aggregates announced from the RIPE address blocks: 53150
RIPE Region origin ASes present in the Internet Routing Table: 15849
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7887
RIPE Region transit ASes present in the Internet Routing Table: 2494
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: 937
Number of RIPE addresses announced to Internet: 485323724
Equivalent to 28 /8s, 237 /16s and 115 /24s
Percentage of available RIPE address space announced: 78.2
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: 34276
Total LACNIC prefixes after maximum aggregation: 7623
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 33448
Unique aggregates announced from the LACNIC address blocks: 17293
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 279
Number of LACNIC addresses announced to Internet: 87335168
Equivalent to 5 /8s, 52 /16s and 161 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8304
Total AfriNIC prefixes after maximum aggregation: 1994
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6589
Unique aggregates announced from the AfriNIC address blocks: 2024
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26918656
Equivalent to 1 /8s, 154 /16s and 191 /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 1936 11071 650 Korea Telecom (KIX)
17974 1776 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1557 301 84 TPG Internet Pty Ltd
24560 1196 336 187 Bharti Airtel Ltd.
4755 1188 253 361 Videsh Sanchar Nigam Ltd. Aut
9583 1058 77 496 Sify Limited
4808 1033 2111 294 CNCGROUP IP network: China169
17488 978 181 126 Hathway IP Over Cable Interne
7552 954 1062 11 Vietel Corporation
18101 933 116 139 Reliance Infocom Ltd Internet
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 3623 3818 236 bellsouth.net, inc.
18566 1914 365 241 Covad Communications
1785 1811 681 122 AppliedTheory Corporation
7029 1636 1023 206 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1414 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1369 7069 897 AT&T WorldNet Services
2386 1257 520 905 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 1036 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 519 2078 403 TDC Tele Danmark
6830 513 1788 316 UPC Distribution Services
20940 467 133 360 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 54 AzerSat LLC.
3320 425 8151 371 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 1567 289 166 TVCABLE BOGOTA
8151 1391 2732 355 Uninet S.A. de C.V.
28573 1260 996 67 Types of queries are: POCs, o
7303 1066 578 174 Telecom Argentina Stet-France
6503 766 451 79 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
8452 799 445 11 TEDATA
24863 797 147 41 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 229 13 8 Starcomms Nigeria Limited
15706 216 32 6 Sudatel Internet Exchange Aut
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 3623 3818 236 bellsouth.net, inc.
23456 2980 722 1617 >>UNKNOWN<<
4766 1936 11071 650 Korea Telecom (KIX)
18566 1914 365 241 Covad Communications
1785 1811 681 122 AppliedTheory Corporation
17974 1776 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1636 1023 206 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1567 289 166 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 1776 1745 PT TELEKOMUNIKASI INDONESIA
1785 1811 1689 AppliedTheory Corporation
18566 1914 1673 Covad Communications
7545 1557 1473 TPG Internet Pty Ltd
7029 1636 1430 Windstream Communications Inc
10620 1567 1401 TVCABLE BOGOTA
23456 2980 1363 >>UNKNOWN<<
22773 1405 1315 Cox Communications, Inc.
4766 1936 1286 Korea Telecom (KIX)
4323 1615 1215 Time Warner Telecom
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 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
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 /8:21 /9:12 /10:27 /11:80 /12:233
/13:465 /14:806 /15:1438 /16:12159 /17:6144 /18:10107
/19:20039 /20:27284 /21:26775 /22:35249 /23:34449 /24:191881
/25:88 /26:86 /27:114 /28:227 /29:67 /30:521
/31:87 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2246 3623 bellsouth.net, inc.
18566 1870 1914 Covad Communications
23456 1488 2980 >>UNKNOWN<<
10620 1462 1567 TVCABLE BOGOTA
7029 1317 1636 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1051 1811 AppliedTheory Corporation
6478 950 978 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)
----------------------------------------------
1:347 2:48 4:19 5:1 6:3 8:340
12:1965 13:1 14:498 15:15 16:3 17:5
20:10 23:18 24:1680 27:860 31:516 32:149
33:4 34:2 36:4 38:729 40:104 41:2594
42:36 44:3 46:1068 47:3 49:199 50:382
52:13 54:2 55:5 56:2 57:45 58:872
59:491 60:378 61:1189 62:1076 63:1951 64:4050
65:2303 66:3944 67:1920 68:1289 69:3143 70:822
71:373 72:1894 73:1 74:2481 75:341 76:347
77:863 78:705 79:485 80:1127 81:843 82:515
83:471 84:691 85:1083 86:534 87:771 88:336
89:1557 90:224 91:4004 92:528 93:1125 94:1338
95:868 96:424 97:263 98:931 99:37 101:85
103:180 106:79 107:29 108:81 109:1045 110:616
111:706 112:307 113:392 114:519 115:668 116:995
117:666 118:855 119:1182 120:316 121:673 122:1614
123:989 124:1371 125:1282 128:247 129:172 130:170
131:570 132:102 133:21 134:215 135:52 136:215
137:138 138:296 139:128 140:482 141:269 142:384
143:435 144:484 145:56 146:453 147:228 148:681
149:251 150:159 151:190 152:346 153:182 154:5
155:400 156:198 157:355 158:138 159:456 160:317
161:205 162:310 163:163 164:507 165:396 166:534
167:434 168:744 169:154 170:840 171:81 172:1
173:1639 174:620 175:387 176:148 177:195 178:1013
180:923 181:26 182:509 183:215 184:358 185:1
186:1329 187:768 188:910 189:970 190:5030 192:5943
193:4990 194:3555 195:3141 196:1199 197:112 198:3599
199:4030 200:5552 201:1479 202:8348 203:8295 204:4261
205:2336 206:2739 207:2819 208:4129 209:3495 210:2688
211:1459 212:2142 213:1780 214:792 215:70 216:4957
217:1636 218:553 219:349 220:1207 221:513 222:360
223:237
End of report
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