Routing Table Report 04:00 +10GMT Thu 04 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 365843
Prefixes after maximum aggregation: 166049
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181624
Total ASes present in the Internet Routing Table: 38350
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31837
Origin ASes announcing only one prefix: 15311
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 140
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: 1017
Unregistered ASNs in the Routing Table: 577
Number of 32-bit ASNs allocated by the RIRs: 1612
Number of 32-bit ASNs visible in the Routing Table: 1294
Prefixes from 32-bit ASNs in the Routing Table: 3005
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2489547264
Equivalent to 148 /8s, 99 /16s and 122 /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: 152661
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91431
Total APNIC prefixes after maximum aggregation: 30424
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87953
Unique aggregates announced from the APNIC address blocks: 37632
APNIC Region origin ASes present in the Internet Routing Table: 4529
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 69
Number of APNIC addresses announced to Internet: 623237408
Equivalent to 37 /8s, 37 /16s and 217 /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: 141817
Total ARIN prefixes after maximum aggregation: 73146
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113682
Unique aggregates announced from the ARIN address blocks: 46765
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5568
ARIN Region transit ASes present in the Internet Routing Table: 1535
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: 803351424
Equivalent to 47 /8s, 226 /16s and 43 /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: 87153
Total RIPE prefixes after maximum aggregation: 49542
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80422
Unique aggregates announced from the RIPE address blocks: 53113
RIPE Region origin ASes present in the Internet Routing Table: 15841
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7898
RIPE Region transit ASes present in the Internet Routing Table: 2511
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 930
Number of RIPE addresses announced to Internet: 484715712
Equivalent to 28 /8s, 228 /16s and 44 /24s
Percentage of available RIPE address space announced: 78.1
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: 33977
Total LACNIC prefixes after maximum aggregation: 7649
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33157
Unique aggregates announced from the LACNIC address blocks: 17295
LACNIC Region origin ASes present in the Internet Routing Table: 1493
LACNIC Prefixes per ASN: 22.21
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 279
Number of LACNIC addresses announced to Internet: 87334912
Equivalent to 5 /8s, 52 /16s and 160 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8293
Total AfriNIC prefixes after maximum aggregation: 1982
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6582
Unique aggregates announced from the AfriNIC address blocks: 2023
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26902272
Equivalent to 1 /8s, 154 /16s and 127 /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 2490 11046 949 Korea Telecom (KIX)
17974 1776 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1517 635 169 TATA Communications formerly
24560 1196 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 BSNL National Internet Backbo
9583 1058 77 496 Sify Limited
4808 1057 2097 301 CNCGROUP IP network: China169
17488 978 187 121 Hathway IP Over Cable Interne
7552 950 1062 11 Vietel Corporation
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 3625 3818 236 bellsouth.net, inc.
18566 1914 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
4323 1616 1082 400 Time Warner Telecom
7029 1607 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1359 7052 888 AT&T WorldNet Services
2386 1256 520 905 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 534 106 185 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 466 133 359 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 54 AzerSat LLC.
3320 425 8151 371 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 1567 289 166 TVCABLE BOGOTA
8151 1419 2750 351 UniNet S.A. de C.V.
28573 1272 996 67 NET Servicos de Comunicao S.A
7303 1067 578 175 Telecom Argentina Stet-France
6503 765 451 78 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
11172 512 85 89 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 802 147 42 LINKdotNET AS number
8452 799 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 229 13 8 Starcomms Nigeria Limited
15706 216 32 6 Sudatel Internet Exchange Aut
24835 176 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3625 3818 236 bellsouth.net, inc.
23456 3005 724 1610 32-bit ASN transition
4766 2490 11046 949 Korea Telecom (KIX)
18566 1914 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
17974 1776 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 400 Time Warner Telecom
7029 1607 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1567 289 166 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 1776 1745 PT TELEKOMUNIKASI INDONESIA
1785 1810 1689 PaeTec Communications, Inc.
18566 1914 1673 Covad Communications
4766 2490 1541 Korea Telecom (KIX)
7545 1559 1474 TPG Internet Pty Ltd
10620 1567 1401 TVCABLE BOGOTA
23456 3005 1395 32-bit ASN transition
7029 1607 1377 Windstream Communications Inc
4755 1517 1348 TATA Communications formerly
22773 1405 1315 Cox 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 /11:80 /12:233
/13:465 /14:800 /15:1409 /16:12053 /17:5895 /18:9921
/19:19528 /20:26278 /21:26351 /22:34975 /23:33978 /24:190493
/25:1091 /26:1282 /27:735 /28:200 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2248 3625 bellsouth.net, inc.
18566 1870 1914 Covad Communications
23456 1477 3005 32-bit ASN transition
10620 1462 1567 TVCABLE BOGOTA
7029 1304 1607 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1051 1810 PaeTec Communications, Inc.
6478 950 978 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:347 2:47 4:15 5:1 6:3 8:339
12:1962 13:1 14:496 15:15 16:3 17:5
20:10 23:18 24:1674 27:859 31:516 32:64
33:4 34:2 36:4 38:727 40:104 41:2590
42:36 44:3 46:1064 47:3 49:199 50:382
52:13 54:2 55:5 56:2 57:35 58:870
59:490 60:378 61:1186 62:1058 63:1928 64:3994
65:2301 66:3902 67:1886 68:1110 69:3032 70:776
71:373 72:1862 74:2432 75:329 76:339 77:861
78:703 79:475 80:1123 81:840 82:501 83:466
84:684 85:1073 86:518 87:767 88:332 89:1537
90:224 91:3989 92:527 93:1114 94:1333 95:866
96:423 97:263 98:892 99:37 101:86 103:186
106:79 107:29 108:73 109:1039 110:611 111:719
112:307 113:408 114:557 115:676 116:991 117:667
118:855 119:1182 120:316 121:681 122:1598 123:990
124:1373 125:1286 128:246 129:169 130:170 131:578
132:101 133:21 134:214 135:52 136:215 137:139
138:296 139:115 140:482 141:269 142:380 143:425
144:485 145:57 146:452 147:218 148:683 149:253
150:159 151:190 152:346 153:182 154:5 155:400
156:199 157:354 158:140 159:457 160:318 161:205
162:310 163:163 164:513 165:366 166:530 167:434
168:745 169:153 170:840 171:81 172:1 173:1622
174:618 175:390 176:147 177:195 178:1010 180:914
181:26 182:507 183:234 184:358 185:1 186:1328
187:766 188:908 189:970 190:5046 192:5913 193:4977
194:3512 195:3060 196:1189 197:111 198:3586 199:3993
200:5553 201:1480 202:8418 203:8437 204:4253 205:2312
206:2675 207:2809 208:4000 209:3405 210:2686 211:1455
212:2093 213:1767 214:796 215:70 216:4899 217:1630
218:551 219:348 220:1203 221:512 222:360 223:236
End of report
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