Routing Table Report 04:00 +10GMT Wed 17 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367545
Prefixes after maximum aggregation: 166470
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182357
Total ASes present in the Internet Routing Table: 38489
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31958
Origin ASes announcing only one prefix: 15370
Transit ASes present in the Internet Routing Table: 5215
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1084
Unregistered ASNs in the Routing Table: 613
Number of 32-bit ASNs allocated by the RIRs: 1647
Number of 32-bit ASNs visible in the Routing Table: 1316
Prefixes from 32-bit ASNs in the Routing Table: 3022
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2493582272
Equivalent to 148 /8s, 161 /16s and 11 /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: 153370
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92250
Total APNIC prefixes after maximum aggregation: 30449
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88764
Unique aggregates announced from the APNIC address blocks: 37687
APNIC Region origin ASes present in the Internet Routing Table: 4527
APNIC Prefixes per ASN: 19.61
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 68
Number of APNIC addresses announced to Internet: 623632160
Equivalent to 37 /8s, 43 /16s and 223 /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: 142281
Total ARIN prefixes after maximum aggregation: 73296
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114074
Unique aggregates announced from the ARIN address blocks: 47089
ARIN Region origin ASes present in the Internet Routing Table: 14578
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5608
ARIN Region transit ASes present in the Internet Routing Table: 1544
Average ARIN Region AS path length visible: 4.0
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: 803629824
Equivalent to 47 /8s, 230 /16s and 107 /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: 87454
Total RIPE prefixes after maximum aggregation: 49678
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80654
Unique aggregates announced from the RIPE address blocks: 53346
RIPE Region origin ASes present in the Internet Routing Table: 15890
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7918
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 950
Number of RIPE addresses announced to Internet: 487402240
Equivalent to 29 /8s, 13 /16s and 43 /24s
Percentage of available RIPE address space announced: 78.5
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: 34033
Total LACNIC prefixes after maximum aggregation: 7645
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33194
Unique aggregates announced from the LACNIC address blocks: 17290
LACNIC Region origin ASes present in the Internet Routing Table: 1501
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 282
Number of LACNIC addresses announced to Internet: 87522816
Equivalent to 5 /8s, 55 /16s and 126 /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: 8335
Total AfriNIC prefixes after maximum aggregation: 2039
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6476
Unique aggregates announced from the AfriNIC address blocks: 2084
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26900480
Equivalent to 1 /8s, 154 /16s and 120 /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 2500 11046 951 Korea Telecom (KIX)
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1576 301 85 TPG Internet Pty Ltd
4755 1534 635 170 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1125 963 42 BSNL National Internet Backbo
9583 1071 78 493 Sify Limited
4808 1064 2098 306 CNCGROUP IP network: China169
17488 1001 188 132 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 227 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1818 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1581 1537 625 Charter Communications
7029 1574 991 228 Windstream Communications Inc
22773 1433 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1357 7052 887 AT&T WorldNet Services
2386 1245 516 896 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 538 107 183 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
20940 473 135 366 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 455 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
8551 403 354 44 Bezeq International
3301 398 1855 347 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1579 291 167 TVCABLE BOGOTA
8151 1433 2763 353 UniNet S.A. de C.V.
28573 1265 996 67 NET Servicos de Comunicao S.A
7303 1065 578 174 Telecom Argentina Stet-France
6503 739 450 73 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 531 232 96 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 514 85 90 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 799 145 58 LINKdotNET AS number
8452 635 445 11 TEDATA
15475 511 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 263 519 14 Itissalat Al-MAGHRIB
15706 253 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 193 28 64 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 227 bellsouth.net, inc.
23456 3022 725 1638 32-bit ASN transition
4766 2500 11046 951 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1818 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1581 1537 625 Charter Communications
10620 1579 291 167 TVCABLE BOGOTA
7545 1576 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1909 1878 PT TELEKOMUNIKASI INDONESIA
1785 1818 1694 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2500 1549 Korea Telecom (KIX)
7545 1576 1491 TPG Internet Pty Ltd
10620 1579 1412 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
23456 3022 1384 32-bit ASN transition
4755 1534 1364 TATA Communications formerly
7029 1574 1346 Windstream Communications Inc
Complete listing at http://thyme.rand.apnic.net/current/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/current/data-badAS
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/current/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 /11:81 /12:233
/13:465 /14:799 /15:1417 /16:12060 /17:5916 /18:9939
/19:19519 /20:26519 /21:26543 /22:35441 /23:34210 /24:190990
/25:1095 /26:1305 /27:740 /28:205 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2218 3586 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1474 1579 TVCABLE BOGOTA
23456 1471 3022 32-bit ASN transition
7029 1275 1574 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1160 Citizens Utilities
1785 1053 1818 PaeTec Communications, Inc.
22773 929 1433 Cox Communications, Inc.
30036 903 925 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:351 2:43 4:15 5:1 6:3 8:340
12:1961 13:1 14:516 15:15 16:3 17:5
20:10 23:18 24:1684 27:870 31:515 32:64
33:4 34:2 36:4 38:733 40:107 41:2501
42:45 44:3 46:1073 47:3 49:219 50:398
52:13 54:2 55:7 56:2 57:35 58:860
59:498 60:375 61:1168 62:1093 63:1929 64:3994
65:2301 66:3918 67:1899 68:1107 69:3087 70:779
71:373 72:1842 74:2433 75:329 76:341 77:863
78:705 79:478 80:1122 81:832 82:485 83:465
84:685 85:1075 86:518 87:837 88:335 89:1533
90:224 91:4037 92:526 93:1119 94:1346 95:872
96:418 97:266 98:919 99:37 101:79 103:193
106:69 107:31 108:73 109:1009 110:629 111:731
112:306 113:406 114:560 115:692 116:993 117:680
118:872 119:1187 120:313 121:689 122:1584 123:979
124:1312 125:1341 128:246 129:174 130:171 131:579
132:116 133:21 134:213 135:51 136:216 137:139
138:296 139:116 140:488 141:274 142:382 143:418
144:485 145:58 146:460 147:216 148:698 149:253
150:163 151:190 152:439 153:184 154:5 155:399
156:199 157:330 158:131 159:456 160:318 161:207
162:328 163:164 164:515 165:367 166:534 167:434
168:747 169:153 170:846 171:81 172:1 173:1641
174:623 175:389 176:147 177:210 178:1000 180:929
181:24 182:521 183:242 184:369 185:1 186:1360
187:729 188:915 189:926 190:5103 192:5904 193:4979
194:3508 195:3040 196:1210 197:123 198:3586 199:4031
200:5505 201:1478 202:8414 203:8481 204:4248 205:2318
206:2672 207:2791 208:4000 209:3410 210:2700 211:1461
212:2084 213:1762 214:783 215:70 216:4867 217:1610
218:555 219:354 220:1229 221:514 222:360 223:236
End of report
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