Routing Table Report 00:00 GMT Thu 11 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: 371035
Prefixes after maximum aggregation: 167391
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182214
Total ASes present in the Internet Routing Table: 38465
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31938
Origin ASes announcing only one prefix: 15353
Transit ASes present in the Internet Routing Table: 5208
Transit-only ASes present in the Internet Routing Table: 147
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: 4163
Unregistered ASNs in the Routing Table: 610
Number of 32-bit ASNs allocated by the RIRs: 1638
Number of 32-bit ASNs visible in the Routing Table: 1319
Prefixes from 32-bit ASNs in the Routing Table: 3059
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2493848583
Equivalent to 148 /8s, 165 /16s and 28 /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: 153897
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89962
Total APNIC prefixes after maximum aggregation: 29308
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86551
Unique aggregates announced from the APNIC address blocks: 37641
APNIC Region origin ASes present in the Internet Routing Table: 4516
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 624036864
Equivalent to 37 /8s, 50 /16s and 12 /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,
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: 145501
Total ARIN prefixes after maximum aggregation: 75293
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117013
Unique aggregates announced from the ARIN address blocks: 46955
ARIN Region origin ASes present in the Internet Routing Table: 14579
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5594
ARIN Region transit ASes present in the Internet Routing Table: 1526
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: 803376408
Equivalent to 47 /8s, 226 /16s and 141 /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: 89519
Total RIPE prefixes after maximum aggregation: 49752
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82003
Unique aggregates announced from the RIPE address blocks: 53369
RIPE Region origin ASes present in the Internet Routing Table: 15876
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7904
RIPE Region transit ASes present in the Internet Routing Table: 2506
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: 949
Number of RIPE addresses announced to Internet: 487606988
Equivalent to 29 /8s, 16 /16s and 74 /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: 34431
Total LACNIC prefixes after maximum aggregation: 7637
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33582
Unique aggregates announced from the LACNIC address blocks: 17298
LACNIC Region origin ASes present in the Internet Routing Table: 1498
LACNIC Prefixes per ASN: 22.42
LACNIC Region origin ASes announcing only one prefix: 445
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: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 283
Number of LACNIC addresses announced to Internet: 87537408
Equivalent to 5 /8s, 55 /16s and 183 /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: 8351
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6489
Unique aggregates announced from the AfriNIC address blocks: 2027
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 26852096
Equivalent to 1 /8s, 153 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1935 11071 650 Korea Telecom (KIX)
17974 1794 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1533 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1124 943 43 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1052 2110 289 CNCGROUP IP network: China169
17488 1002 186 126 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 3591 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1815 681 122 AppliedTheory Corporation
7029 1635 1018 204 Windstream Communications Inc
4323 1612 1097 399 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1410 4788 395 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1370 7069 898 AT&T WorldNet Services
2386 1250 519 899 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 537 107 185 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 455 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 433 32 54 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 1570 289 164 TVCABLE BOGOTA
8151 1428 2735 349 Uninet S.A. de C.V.
28573 1252 995 73 Types of queries are: POCs, o
7303 1064 577 173 Telecom Argentina Stet-France
6503 753 450 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
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 652 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 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 229 13 8 Starcomms Nigeria Limited
12258 193 28 60 YEBO-AS
24835 174 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 3591 3817 231 bellsouth.net, inc.
23456 3059 734 1641 >>UNKNOWN<<
4766 1935 11071 650 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1815 681 122 AppliedTheory Corporation
17974 1794 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1635 1018 204 Windstream Communications Inc
4323 1612 1097 399 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1570 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 1794 1763 PT TELEKOMUNIKASI INDONESIA
1785 1815 1693 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1559 1474 TPG Internet Pty Ltd
7029 1635 1431 Windstream Communications Inc
23456 3059 1418 >>UNKNOWN<<
10620 1570 1406 TVCABLE BOGOTA
7552 1408 1401 Vietel Corporation
4755 1533 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1406 1316 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 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 /11:81 /12:233
/13:466 /14:806 /15:1443 /16:12170 /17:6147 /18:10191
/19:20059 /20:27624 /21:26950 /22:35534 /23:34663 /24:192872
/25:84 /26:85 /27:112 /28:279 /29:70 /30:531
/31:89 /32:486
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2219 3591 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1489 3059 >>UNKNOWN<<
10620 1465 1570 TVCABLE BOGOTA
7029 1321 1635 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1052 1815 AppliedTheory Corporation
22773 905 1406 Cox Communications, Inc.
30036 896 921 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:352 2:45 4:19 5:1 6:3 8:337
12:1966 13:1 14:505 15:15 16:3 17:5
20:10 23:19 24:1690 27:872 31:523 32:149
33:4 34:2 36:4 38:730 40:107 41:2511
42:39 44:3 46:1069 47:3 49:219 50:391
52:13 54:2 55:6 56:2 57:45 58:872
59:500 60:379 61:1191 62:1083 63:1956 64:4062
65:2300 66:3962 67:1944 68:1286 69:3200 70:825
71:373 72:1898 73:1 74:2484 75:341 76:350
77:863 78:710 79:482 80:1125 81:847 82:517
83:469 84:691 85:1080 86:538 87:843 88:341
89:1552 90:224 91:4030 92:527 93:1124 94:1332
95:870 96:421 97:266 98:932 99:37 101:79
103:188 106:79 107:30 108:80 109:1053 110:626
111:726 112:308 113:410 114:564 115:694 116:1004
117:685 118:865 119:1180 120:315 121:705 122:1604
123:979 124:1374 125:1333 128:247 129:175 130:170
131:580 132:116 133:21 134:214 135:52 136:216
137:139 138:296 139:128 140:488 141:271 142:383
143:417 144:491 145:58 146:457 147:226 148:696
149:252 150:154 151:190 152:440 153:182 154:5
155:400 156:199 157:353 158:139 159:458 160:318
161:208 162:310 163:163 164:514 165:396 166:534
167:435 168:746 169:154 170:843 171:81 172:1
173:1662 174:623 175:393 176:164 177:210 178:1012
180:930 181:26 182:517 183:238 184:367 185:1
186:1366 187:739 188:900 189:923 190:5059 192:5951
193:4988 194:3556 195:3147 196:1212 197:115 198:3602
199:4027 200:5540 201:1477 202:8433 203:8471 204:4271
205:2336 206:2739 207:2806 208:4128 209:3504 210:2692
211:1461 212:2125 213:1777 214:801 215:70 216:4940
217:1633 218:557 219:350 220:1234 221:516 222:360
223:233
End of report
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