Routing Table Report 00:00 GMT Fri 12 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: 370758
Prefixes after maximum aggregation: 167417
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182293
Total ASes present in the Internet Routing Table: 38479
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31950
Origin ASes announcing only one prefix: 15361
Transit ASes present in the Internet Routing Table: 5210
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4152
Unregistered ASNs in the Routing Table: 606
Number of 32-bit ASNs allocated by the RIRs: 1642
Number of 32-bit ASNs visible in the Routing Table: 1319
Prefixes from 32-bit ASNs in the Routing Table: 3049
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2494307847
Equivalent to 148 /8s, 172 /16s and 30 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 153951
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89625
Total APNIC prefixes after maximum aggregation: 29289
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 86202
Unique aggregates announced from the APNIC address blocks: 37673
APNIC Region origin ASes present in the Internet Routing Table: 4515
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 624194560
Equivalent to 37 /8s, 52 /16s and 116 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 145540
Total ARIN prefixes after maximum aggregation: 75323
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117052
Unique aggregates announced from the ARIN address blocks: 46992
ARIN Region origin ASes present in the Internet Routing Table: 14589
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5593
ARIN Region transit ASes present in the Internet Routing Table: 1525
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: 803434008
Equivalent to 47 /8s, 227 /16s and 110 /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: 89432
Total RIPE prefixes after maximum aggregation: 49780
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81902
Unique aggregates announced from the RIPE address blocks: 53327
RIPE Region origin ASes present in the Internet Routing Table: 15879
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7904
RIPE Region transit ASes present in the Internet Routing Table: 2514
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: 950
Number of RIPE addresses announced to Internet: 487624652
Equivalent to 29 /8s, 16 /16s and 143 /24s
Percentage of available RIPE address space announced: 78.6
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: 34458
Total LACNIC prefixes after maximum aggregation: 7634
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33605
Unique aggregates announced from the LACNIC address blocks: 17308
LACNIC Region origin ASes present in the Internet Routing Table: 1500
LACNIC Prefixes per ASN: 22.40
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 283
Number of LACNIC addresses announced to Internet: 87476480
Equivalent to 5 /8s, 54 /16s and 201 /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: 8449
Total AfriNIC prefixes after maximum aggregation: 2027
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6591
Unique aggregates announced from the AfriNIC address blocks: 2037
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.3
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: 26924288
Equivalent to 1 /8s, 154 /16s and 213 /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 1928 11069 647 Korea Telecom (KIX)
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1567 301 84 TPG Internet Pty Ltd
4755 1533 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1198 336 187 Bharti Airtel Ltd.
9829 1128 963 42 BSNL National Internet Backbo
4808 1091 2150 307 CNCGROUP IP network: China169
9583 1070 78 490 Sify Limited
17488 1002 186 126 Hathway IP Over Cable Interne
7552 997 1062 11 Vietel Corporation
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 3588 3817 234 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1814 681 125 AppliedTheory Corporation
7029 1637 1019 205 Windstream Communications Inc
4323 1612 1097 399 Time Warner Telecom
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1369 7069 898 AT&T WorldNet Services
2386 1249 519 898 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 1033 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 185 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 510 1787 315 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
8866 454 133 26 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
3320 423 8135 369 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
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 1574 290 165 TVCABLE BOGOTA
8151 1434 2737 355 Uninet S.A. de C.V.
28573 1255 996 67 Types of queries are: POCs, o
7303 1067 578 176 Telecom Argentina Stet-France
6503 752 450 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 530 232 96 COLOMBIA TELECOMUNICACIONES S
27947 516 54 49 Telconet 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 806 147 43 LINKdotNET AS number
8452 740 445 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
33776 229 13 8 Starcomms Nigeria Limited
15706 228 32 6 Sudatel Internet Exchange Aut
12258 193 28 60 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt
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 3588 3817 234 bellsouth.net, inc.
23456 3049 732 1639 >>UNKNOWN<<
4766 1928 11069 647 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1814 681 125 AppliedTheory Corporation
7029 1637 1019 205 Windstream Communications Inc
4323 1612 1097 399 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1574 290 165 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 1815 1784 PT TELEKOMUNIKASI INDONESIA
1785 1814 1689 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1567 1483 TPG Internet Pty Ltd
7029 1637 1432 Windstream Communications Inc
23456 3049 1410 >>UNKNOWN<<
10620 1574 1409 TVCABLE BOGOTA
4755 1533 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1409 1316 Cox Communications, Inc.
4766 1928 1281 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
31.217.128.0/19 43531 Packetrade Ltd, UK
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 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 /11:81 /12:233
/13:466 /14:806 /15:1440 /16:12171 /17:6146 /18:10199
/19:20050 /20:27518 /21:26928 /22:35486 /23:34700 /24:192742
/25:84 /26:86 /27:111 /28:273 /29:70 /30:531
/31:91 /32:486
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2218 3588 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1491 3049 >>UNKNOWN<<
10620 1469 1574 TVCABLE BOGOTA
7029 1322 1637 Windstream Communications Inc
11492 1099 1145 Cable One
7011 1058 1160 Citizens Utilities
1785 1052 1814 AppliedTheory Corporation
22773 905 1409 Cox Communications, Inc.
30036 899 924 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:353 2:44 4:19 5:1 6:3 8:340
12:1965 13:1 14:511 15:15 16:3 17:5
20:10 23:19 24:1688 27:868 31:507 32:149
33:4 34:2 36:4 38:731 40:108 41:2570
42:43 44:3 46:1073 47:3 49:219 50:392
52:13 54:2 55:6 56:2 57:45 58:870
59:500 60:379 61:1191 62:1080 63:1959 64:4062
65:2301 66:3958 67:1943 68:1286 69:3200 70:825
71:373 72:1900 73:1 74:2477 75:341 76:350
77:865 78:709 79:482 80:1133 81:826 82:504
83:463 84:693 85:1083 86:539 87:842 88:341
89:1549 90:224 91:4034 92:527 93:1132 94:1331
95:870 96:421 97:266 98:932 99:36 101:79
103:185 106:79 107:30 108:80 109:1022 110:629
111:730 112:308 113:405 114:558 115:684 116:1003
117:661 118:865 119:1186 120:315 121:705 122:1608
123:969 124:1371 125:1292 128:247 129:176 130:171
131:580 132:116 133:21 134:214 135:52 136:216
137:138 138:296 139:129 140:488 141:273 142:383
143:414 144:489 145:58 146:458 147:226 148:696
149:252 150:160 151:190 152:439 153:182 154:5
155:399 156:199 157:356 158:139 159:458 160:317
161:208 162:309 163:164 164:515 165:396 166:534
167:435 168:745 169:154 170:844 171:81 172:1
173:1663 174:625 175:394 176:164 177:208 178:1010
180:932 181:26 182:515 183:238 184:365 185:1
186:1361 187:735 188:905 189:925 190:5068 192:5951
193:4989 194:3548 195:3134 196:1206 197:115 198:3604
199:4042 200:5537 201:1479 202:8434 203:8463 204:4272
205:2336 206:2743 207:2807 208:4137 209:3502 210:2690
211:1463 212:2137 213:1775 214:778 215:70 216:4940
217:1620 218:559 219:355 220:1205 221:516 222:360
223:234
End of report
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