Routing Table Report 04:00 +10GMT Thu 11 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367235
Prefixes after maximum aggregation: 166334
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182101
Total ASes present in the Internet Routing Table: 38439
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31895
Origin ASes announcing only one prefix: 15346
Transit ASes present in the Internet Routing Table: 5233
Transit-only ASes present in the Internet Routing Table: 141
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: 1069
Unregistered ASNs in the Routing Table: 605
Number of 32-bit ASNs allocated by the RIRs: 1638
Number of 32-bit ASNs visible in the Routing Table: 1311
Prefixes from 32-bit ASNs in the Routing Table: 3041
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2492703040
Equivalent to 148 /8s, 147 /16s and 161 /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: 153216
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92115
Total APNIC prefixes after maximum aggregation: 30413
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88596
Unique aggregates announced from the APNIC address blocks: 37645
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 71
Number of APNIC addresses announced to Internet: 623516448
Equivalent to 37 /8s, 42 /16s and 27 /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: 142180
Total ARIN prefixes after maximum aggregation: 73296
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113998
Unique aggregates announced from the ARIN address blocks: 47005
ARIN Region origin ASes present in the Internet Routing Table: 14554
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5590
ARIN Region transit ASes present in the Internet Routing Table: 1542
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: 803379584
Equivalent to 47 /8s, 226 /16s and 153 /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: 87390
Total RIPE prefixes after maximum aggregation: 49617
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80649
Unique aggregates announced from the RIPE address blocks: 53343
RIPE Region origin ASes present in the Internet Routing Table: 15876
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7914
RIPE Region transit ASes present in the Internet Routing Table: 2515
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: 942
Number of RIPE addresses announced to Internet: 487091200
Equivalent to 29 /8s, 8 /16s and 108 /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: 34006
Total LACNIC prefixes after maximum aggregation: 7634
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33179
Unique aggregates announced from the LACNIC address blocks: 17265
LACNIC Region origin ASes present in the Internet Routing Table: 1497
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 279
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: 87482880
Equivalent to 5 /8s, 54 /16s and 226 /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: 8330
Total AfriNIC prefixes after maximum aggregation: 2024
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6475
Unique aggregates announced from the AfriNIC address blocks: 2026
AfriNIC Region origin ASes present in the Internet Routing Table: 481
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: 105
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26835712
Equivalent to 1 /8s, 153 /16s and 123 /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 2492 11046 949 Korea Telecom (KIX)
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1560 301 85 TPG Internet Pty Ltd
4755 1535 635 170 TATA Communications formerly
7552 1404 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1124 943 43 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1057 2098 301 CNCGROUP IP network: China169
17488 987 186 126 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 3592 3817 230 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1814 681 121 PaeTec Communications, Inc.
4323 1615 1082 400 Time Warner Telecom
7029 1611 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1410 4788 395 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1359 7052 889 AT&T WorldNet Services
2386 1249 519 899 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 537 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 434 32 52 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 397 1855 346 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 1566 289 164 TVCABLE BOGOTA
8151 1425 2754 350 UniNet S.A. de C.V.
28573 1274 996 67 NET Servicos de Comunicao S.A
7303 1066 578 174 Telecom Argentina Stet-France
6503 743 450 76 AVANTEL, S.A.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 516 53 54 Telconet S.A
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 806 147 43 LINKdotNET AS number
8452 652 445 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
15706 234 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 192 28 59 Vodacom Internet Company
24835 174 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 3592 3817 230 bellsouth.net, inc.
23456 3041 731 1632 32-bit ASN transition
4766 2492 11046 949 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1814 681 121 PaeTec Communications, Inc.
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 400 Time Warner Telecom
7029 1611 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1566 289 164 TVCABLE BOGOTA
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 1795 1764 PT TELEKOMUNIKASI INDONESIA
1785 1814 1693 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2492 1543 Korea Telecom (KIX)
7545 1560 1475 TPG Internet Pty Ltd
23456 3041 1409 32-bit ASN transition
10620 1566 1402 TVCABLE BOGOTA
7552 1404 1397 Vietel Corporation
7029 1611 1381 Windstream Communications Inc
4755 1535 1365 TATA Communications formerly
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 /14:800 /15:1415 /16:12056 /17:5902 /18:9914
/19:19538 /20:26497 /21:26458 /22:35211 /23:34150 /24:191136
/25:1091 /26:1279 /27:729 /28:205 /29:9 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2221 3592 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1477 3041 32-bit ASN transition
10620 1461 1566 TVCABLE BOGOTA
7029 1307 1611 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1052 1814 PaeTec Communications, Inc.
22773 905 1406 Cox Communications, Inc.
30036 896 921 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:352 2:44 4:15 5:1 6:3 8:336
12:1963 13:1 14:503 15:15 16:3 17:5
20:10 23:19 24:1685 27:872 31:521 32:64
33:4 34:2 36:4 38:728 40:107 41:2498
42:39 44:3 46:1066 47:3 49:219 50:391
52:13 54:2 55:6 56:2 57:35 58:870
59:499 60:379 61:1188 62:1068 63:1932 64:4004
65:2298 66:3920 67:1911 68:1109 69:3090 70:779
71:373 72:1866 74:2434 75:329 76:342 77:861
78:708 79:472 80:1124 81:844 82:503 83:463
84:684 85:1074 86:522 87:837 88:335 89:1532
90:224 91:4019 92:526 93:1114 94:1329 95:860
96:417 97:266 98:917 99:37 101:79 103:188
106:79 107:30 108:72 109:1045 110:618 111:728
112:308 113:408 114:561 115:692 116:987 117:684
118:865 119:1183 120:315 121:688 122:1607 123:981
124:1375 125:1332 128:246 129:172 130:170 131:578
132:117 133:21 134:213 135:52 136:216 137:139
138:296 139:115 140:487 141:270 142:380 143:418
144:491 145:58 146:456 147:215 148:695 149:252
150:154 151:190 152:441 153:182 154:5 155:400
156:199 157:354 158:139 159:458 160:318 161:208
162:309 163:163 164:514 165:366 166:533 167:433
168:747 169:153 170:843 171:81 172:1 173:1646
174:618 175:393 176:163 177:210 178:1009 180:918
181:26 182:512 183:238 184:367 185:1 186:1356
187:733 188:908 189:920 190:5077 192:5918 193:4972
194:3513 195:3065 196:1202 197:114 198:3592 199:4014
200:5538 201:1479 202:8418 203:8475 204:4265 205:2314
206:2672 207:2794 208:4004 209:3411 210:2689 211:1457
212:2080 213:1760 214:808 215:70 216:4883 217:1627
218:555 219:349 220:1230 221:515 222:359 223:233
End of report
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