Routing Table Report 04:00 +10GMT Wed 15 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 359723
Prefixes after maximum aggregation: 162904
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178598
Total ASes present in the Internet Routing Table: 37861
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31588
Origin ASes announcing only one prefix: 15173
Transit ASes present in the Internet Routing Table: 5128
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 791
Unregistered ASNs in the Routing Table: 426
Number of 32-bit ASNs allocated by the RIRs: 1453
Number of 32-bit ASNs visible in the Routing Table: 1145
Prefixes from 32-bit ASNs in the Routing Table: 2655
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2486909696
Equivalent to 148 /8s, 59 /16s and 59 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.9
Total number of prefixes smaller than registry allocations: 150065
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89271
Total APNIC prefixes after maximum aggregation: 30106
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85735
Unique aggregates announced from the APNIC address blocks: 36737
APNIC Region origin ASes present in the Internet Routing Table: 4483
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 46
Number of APNIC addresses announced to Internet: 619608352
Equivalent to 36 /8s, 238 /16s and 121 /24s
Percentage of available APNIC address space announced: 78.6
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: 140920
Total ARIN prefixes after maximum aggregation: 71645
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112845
Unique aggregates announced from the ARIN address blocks: 46111
ARIN Region origin ASes present in the Internet Routing Table: 14428
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5504
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 817768960
Equivalent to 48 /8s, 190 /16s and 42 /24s
Percentage of available ARIN address space announced: 65.0
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: 85583
Total RIPE prefixes after maximum aggregation: 48738
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79020
Unique aggregates announced from the RIPE address blocks: 52418
RIPE Region origin ASes present in the Internet Routing Table: 15698
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2475
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: 846
Number of RIPE addresses announced to Internet: 477392384
Equivalent to 28 /8s, 116 /16s and 110 /24s
Percentage of available RIPE address space announced: 76.9
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: 32985
Total LACNIC prefixes after maximum aggregation: 7526
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32085
Unique aggregates announced from the LACNIC address blocks: 16969
LACNIC Region origin ASes present in the Internet Routing Table: 1466
LACNIC Prefixes per ASN: 21.89
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 237
Number of LACNIC addresses announced to Internet: 84894208
Equivalent to 5 /8s, 15 /16s and 98 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8086
Total AfriNIC prefixes after maximum aggregation: 1920
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6367
Unique aggregates announced from the AfriNIC address blocks: 1882
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.8
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: 24135680
Equivalent to 1 /8s, 112 /16s and 72 /24s
Percentage of available AfriNIC address space announced: 36.0
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 2462 9500 924 Korea Telecom (KIX)
17974 1564 441 39 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 85 TPG Internet Pty Ltd
4755 1475 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1043 879 56 BSNL National Internet Backbo
17488 948 193 101 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 3630 3819 250 bellsouth.net, inc.
4323 1958 1080 396 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1795 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
20115 1536 1541 633 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1364 7055 890 AT&T WorldNet Services
22773 1341 2897 87 Cox Communications, Inc.
2386 1269 536 910 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 522 106 180 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 446 134 26 Bulgarian Telecommunication C
12479 437 593 7 Uni2 Autonomous System
3320 426 8152 371 Deutsche Telekom AG
8551 406 355 45 Bezeq International
3301 397 1839 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 1513 278 157 TVCABLE BOGOTA
28573 1320 992 80 NET Servicos de Comunicao S.A
8151 1270 2729 365 UniNet S.A. de C.V.
7303 991 506 169 Telecom Argentina Stet-France
6503 739 354 73 AVANTEL, S.A.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 510 262 134 Orbitel S.A. E.S.P.
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 794 147 37 LINKdotNET AS number
8452 784 445 11 TEDATA
15475 526 74 8 Nile Online
36992 306 415 16 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 86 MTN Network Solutions
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 3630 3819 250 bellsouth.net, inc.
23456 2655 650 1438 32-bit ASN transition
4766 2462 9500 924 Korea Telecom (KIX)
4323 1958 1080 396 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1795 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
17974 1564 441 39 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 85 TPG Internet Pty Ltd
20115 1536 1541 633 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1728 1678 AT&T Worldnet Services
18566 1913 1676 Covad Communications
1785 1795 1673 PaeTec Communications, Inc.
4323 1958 1562 Time Warner Telecom
4766 2462 1538 Korea Telecom (KIX)
17974 1564 1525 PT TELEKOMUNIKASI INDONESIA
7545 1537 1452 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1475 1307 TATA Communications formerly
22773 1341 1254 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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:460 /14:799 /15:1393 /16:11948 /17:5851 /18:9793
/19:19381 /20:25848 /21:26042 /22:34262 /23:33218 /24:187229
/25:1092 /26:1260 /27:716 /28:42 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2233 3630 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1314 2655 32-bit ASN transition
11492 1089 1135 Cable One
7011 1061 1161 Citizens Utilities
1785 1050 1795 PaeTec Communications, Inc.
7029 910 1160 Alltel Information Services,
4323 870 1958 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:286 2:45 4:16 5:1 6:3 8:336
12:1975 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1613 27:781 31:435 32:60
33:4 34:2 37:1 38:735 40:103 41:2520
42:2 44:3 46:961 47:3 49:188 50:409
52:13 54:2 55:4 56:2 57:32 58:850
59:476 60:387 61:1121 62:1053 63:1933 64:3934
65:2252 66:4127 67:1879 68:1082 69:2998 70:703
71:373 72:1845 74:2352 75:308 76:341 77:882
78:705 79:460 80:1108 81:846 82:491 83:461
84:666 85:1081 86:579 87:755 88:330 89:1532
90:204 91:3834 92:527 93:1041 94:1305 95:838
96:445 97:250 98:880 99:36 101:66 103:64
106:6 107:11 108:83 109:1003 110:605 111:710
112:301 113:399 114:536 115:688 116:969 117:675
118:796 119:1147 120:309 121:669 122:1628 123:948
124:1267 125:1224 128:248 129:175 130:164 131:579
132:110 133:19 134:214 135:48 136:214 137:146
138:301 139:112 140:479 141:238 142:404 143:415
144:490 145:54 146:451 147:209 148:607 149:247
150:172 151:187 152:332 153:180 154:4 155:398
156:195 157:352 158:137 159:381 160:318 161:208
162:310 163:165 164:499 165:353 166:531 167:422
168:739 169:155 170:839 171:77 172:1 173:1607
174:592 175:372 176:134 177:167 178:996 180:886
181:18 182:468 183:217 184:302 185:1 186:1211
187:766 188:854 189:916 190:4896 192:5858 193:4906
194:3493 195:3002 196:1234 197:32 198:3596 199:3924
200:5500 201:1480 202:8311 203:8393 204:4190 205:2342
206:2689 207:2819 208:3932 209:3472 210:2714 211:1417
212:2010 213:1720 214:750 215:69 216:4920 217:1655
218:547 219:364 220:1206 221:492 222:334 223:158
End of report
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