Routing Table Report 00:00 GMT Fri 05 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: 369622
Prefixes after maximum aggregation: 166964
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181735
Total ASes present in the Internet Routing Table: 38393
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31915
Origin ASes announcing only one prefix: 15324
Transit ASes present in the Internet Routing Table: 5178
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: 4119
Unregistered ASNs in the Routing Table: 594
Number of 32-bit ASNs allocated by the RIRs: 1618
Number of 32-bit ASNs visible in the Routing Table: 1300
Prefixes from 32-bit ASNs in the Routing Table: 3028
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2490902015
Equivalent to 148 /8s, 120 /16s and 37 /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: 153241
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89272
Total APNIC prefixes after maximum aggregation: 29174
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 85853
Unique aggregates announced from the APNIC address blocks: 37641
APNIC Region origin ASes present in the Internet Routing Table: 4515
APNIC Prefixes per ASN: 19.02
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 623204864
Equivalent to 37 /8s, 37 /16s and 90 /24s
Percentage of available APNIC address space announced: 79.0
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: 145007
Total ARIN prefixes after maximum aggregation: 75208
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116552
Unique aggregates announced from the ARIN address blocks: 46758
ARIN Region origin ASes present in the Internet Routing Table: 14555
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5579
ARIN Region transit ASes present in the Internet Routing Table: 1520
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: 803644184
Equivalent to 47 /8s, 230 /16s and 163 /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: 89409
Total RIPE prefixes after maximum aggregation: 49651
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81883
Unique aggregates announced from the RIPE address blocks: 53102
RIPE Region origin ASes present in the Internet Routing Table: 15853
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7893
RIPE Region transit ASes present in the Internet Routing Table: 2493
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: 939
Number of RIPE addresses announced to Internet: 485391052
Equivalent to 28 /8s, 238 /16s and 122 /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: 34359
Total LACNIC prefixes after maximum aggregation: 7608
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 33532
Unique aggregates announced from the LACNIC address blocks: 17304
LACNIC Region origin ASes present in the Internet Routing Table: 1494
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 449
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: 277
Number of LACNIC addresses announced to Internet: 87512320
Equivalent to 5 /8s, 55 /16s and 85 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8330
Total AfriNIC prefixes after maximum aggregation: 1995
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6609
Unique aggregates announced from the AfriNIC address blocks: 2018
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 152
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: 26885376
Equivalent to 1 /8s, 154 /16s and 61 /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 1774 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1519 379 168 Videsh Sanchar Nigam Ltd. Aut
24560 1196 336 187 Bharti Airtel Ltd.
9829 1114 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1033 2111 294 CNCGROUP IP network: China169
7552 999 1062 11 Vietel Corporation
17488 993 187 121 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 3580 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1814 681 122 AppliedTheory Corporation
7029 1633 1023 206 Windstream Communications Inc
4323 1614 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
22773 1405 2900 90 Cox Communications, Inc.
7018 1368 7069 896 AT&T WorldNet Services
2386 1256 520 905 AT&T Data Communications Serv
7011 1160 279 624 Citizens Utilities
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 1034 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 520 2080 404 TDC Tele Danmark
6830 512 1788 316 UPC Distribution Services
20940 470 134 363 Akamai Technologies European
8866 455 133 26 Bulgarian Telecommunication C
12479 455 593 7 Uni2 Autonomous System
29049 433 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 1569 289 163 TVCABLE BOGOTA
8151 1390 2748 354 Uninet S.A. de C.V.
28573 1265 996 67 Types of queries are: POCs, o
7303 1066 578 174 Telecom Argentina Stet-France
6503 768 451 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
24863 803 147 41 LINKdotNET AS number
8452 798 445 11 TEDATA
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
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 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 3580 3817 231 bellsouth.net, inc.
23456 3028 726 1621 >>UNKNOWN<<
4766 1936 11071 650 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1814 681 122 AppliedTheory Corporation
17974 1774 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1633 1023 206 Windstream Communications Inc
4323 1614 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1569 289 163 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 1774 1743 PT TELEKOMUNIKASI INDONESIA
1785 1814 1692 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1559 1474 TPG Internet Pty Ltd
7029 1633 1427 Windstream Communications Inc
23456 3028 1407 >>UNKNOWN<<
10620 1569 1406 TVCABLE BOGOTA
4755 1519 1351 Videsh Sanchar Nigam Ltd. Aut
22773 1405 1315 Cox Communications, Inc.
4766 1936 1286 Korea Telecom (KIX)
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 /16:12175 /17:6158 /18:10197
/19:20042 /20:27471 /21:26854 /22:35337 /23:34556 /24:192077
/25:89 /26:86 /27:114 /28:226 /29:67 /30:520
/31:86 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2208 3580 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1491 3028 >>UNKNOWN<<
10620 1464 1569 TVCABLE BOGOTA
7029 1316 1633 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1052 1814 AppliedTheory Corporation
6478 930 958 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
12:1964 13:1 14:500 15:15 16:3 17:5
20:10 23:18 24:1684 27:861 31:517 32:149
33:4 34:2 36:4 38:729 40:106 41:2603
42:37 44:3 46:1072 47:3 49:200 50:382
52:13 54:2 55:3 56:2 57:45 58:869
59:493 60:378 61:1190 62:1074 63:1951 64:4048
65:2297 66:3947 67:1921 68:1278 69:3144 70:788
71:262 72:1847 73:1 74:2409 75:341 76:349
77:863 78:708 79:485 80:1125 81:842 82:516
83:471 84:692 85:1081 86:533 87:839 88:338
89:1556 90:224 91:4001 92:528 93:1131 94:1333
95:875 96:424 97:264 98:934 99:37 101:85
103:186 106:79 107:30 108:81 109:1043 110:622
111:721 112:306 113:408 114:561 115:679 116:1008
117:667 118:856 119:1175 120:210 121:697 122:1613
123:991 124:1373 125:1288 128:247 129:174 130:170
131:577 132:102 133:21 134:215 135:52 136:215
137:139 138:296 139:128 140:482 141:271 142:383
143:422 144:488 145:57 146:456 147:230 148:685
149:252 150:155 151:190 152:346 153:182 154:5
155:400 156:199 157:355 158:139 159:458 160:318
161:206 162:310 163:162 164:514 165:396 166:534
167:437 168:744 169:154 170:841 171:81 172:1
173:1643 174:621 175:392 176:148 177:198 178:1015
180:923 181:26 182:513 183:235 184:360 185:1
186:1330 187:766 188:914 189:970 190:5056 192:5953
193:4992 194:3554 195:3139 196:1200 197:113 198:3600
199:4032 200:5552 201:1477 202:8434 203:8456 204:4261
205:2349 206:2737 207:2815 208:4119 209:3494 210:2714
211:1445 212:2140 213:1777 214:800 215:70 216:4955
217:1634 218:545 219:349 220:1207 221:504 222:360
223:239
End of report
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