Routing Table Report 04:00 +10GMT Sun 07 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 366280
Prefixes after maximum aggregation: 165975
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181895
Total ASes present in the Internet Routing Table: 38386
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31867
Origin ASes announcing only one prefix: 15333
Transit ASes present in the Internet Routing Table: 5219
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: 1038
Unregistered ASNs in the Routing Table: 592
Number of 32-bit ASNs allocated by the RIRs: 1625
Number of 32-bit ASNs visible in the Routing Table: 1300
Prefixes from 32-bit ASNs in the Routing Table: 3024
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2489828480
Equivalent to 148 /8s, 103 /16s and 196 /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: 153010
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91491
Total APNIC prefixes after maximum aggregation: 30282
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87976
Unique aggregates announced from the APNIC address blocks: 37677
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 1243
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 623283744
Equivalent to 37 /8s, 38 /16s and 142 /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: 141934
Total ARIN prefixes after maximum aggregation: 73181
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113785
Unique aggregates announced from the ARIN address blocks: 46884
ARIN Region origin ASes present in the Internet Routing Table: 14533
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5580
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: 803324288
Equivalent to 47 /8s, 225 /16s and 193 /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: 87283
Total RIPE prefixes after maximum aggregation: 49576
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80543
Unique aggregates announced from the RIPE address blocks: 53243
RIPE Region origin ASes present in the Internet Routing Table: 15858
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7915
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 934
Number of RIPE addresses announced to Internet: 484898112
Equivalent to 28 /8s, 230 /16s and 245 /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: 34075
Total LACNIC prefixes after maximum aggregation: 7632
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33275
Unique aggregates announced from the LACNIC address blocks: 17298
LACNIC Region origin ASes present in the Internet Routing Table: 1494
LACNIC Prefixes per ASN: 22.27
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: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 280
Number of LACNIC addresses announced to Internet: 87486976
Equivalent to 5 /8s, 54 /16s and 242 /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: 8306
Total AfriNIC prefixes after maximum aggregation: 1978
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6581
Unique aggregates announced from the AfriNIC address blocks: 2027
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.68
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: 26870784
Equivalent to 1 /8s, 154 /16s and 4 /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 2491 11045 947 Korea Telecom (KIX)
17974 1786 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1560 301 85 TPG Internet Pty Ltd
4755 1522 635 170 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
7552 1115 1062 11 Vietel Corporation
9829 1113 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1056 2097 300 CNCGROUP IP network: China169
17488 980 188 123 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 3570 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1815 681 121 PaeTec Communications, Inc.
4323 1616 1082 400 Time Warner Telecom
7029 1606 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 1252 520 902 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 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 54 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 1421 2765 352 UniNet S.A. de C.V.
28573 1278 996 67 NET Servicos de Comunicao S.A
7303 1067 578 175 Telecom Argentina Stet-France
6503 768 450 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
11172 514 101 91 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 804 147 42 LINKdotNET AS number
8452 799 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
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 3570 3817 231 bellsouth.net, inc.
23456 3024 727 1620 32-bit ASN transition
4766 2491 11045 947 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1815 681 121 PaeTec Communications, Inc.
17974 1786 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 400 Time Warner Telecom
7029 1606 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 1786 1755 PT TELEKOMUNIKASI INDONESIA
1785 1815 1694 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2491 1544 Korea Telecom (KIX)
7545 1560 1475 TPG Internet Pty Ltd
23456 3024 1404 32-bit ASN transition
10620 1566 1402 TVCABLE BOGOTA
7029 1606 1376 Windstream Communications Inc
4755 1522 1352 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
31.192.96.0/21 44611 RIPE Network Coordination Cen
31.209.136.0/21 51896 Hestaleit ehf
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /15:1410 /16:12050 /17:5908 /18:9917
/19:19529 /20:26438 /21:26409 /22:34971 /23:34087 /24:190591
/25:1096 /26:1289 /27:730 /28:201 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2207 3570 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1486 3024 32-bit ASN transition
10620 1461 1566 TVCABLE BOGOTA
7029 1306 1606 Windstream Communications Inc
11492 1095 1141 Cable One
7011 1058 1160 Citizens Utilities
1785 1053 1815 PaeTec Communications, Inc.
6478 934 962 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)
----------------------------------------------
1:349 2:43 4:15 5:1 6:3 8:338
12:1960 13:1 14:497 15:15 16:3 17:5
20:10 23:19 24:1674 27:869 31:518 32:64
33:4 34:2 36:3 38:725 40:106 41:2602
42:37 44:3 46:1073 47:3 49:206 50:386
52:13 54:2 55:5 56:2 57:35 58:866
59:491 60:378 61:1171 62:1060 63:1928 64:3997
65:2294 66:3907 67:1891 68:1099 69:3041 70:774
71:372 72:1864 74:2428 75:328 76:342 77:861
78:704 79:475 80:1125 81:838 82:502 83:465
84:683 85:1074 86:518 87:836 88:334 89:1530
90:224 91:3998 92:526 93:1119 94:1332 95:867
96:420 97:265 98:916 99:37 100:1 101:83
103:186 106:79 107:30 108:72 109:1049 110:613
111:724 112:308 113:408 114:560 115:676 116:993
117:668 118:864 119:1185 120:210 121:680 122:1613
123:991 124:1372 125:1289 128:246 129:172 130:171
131:578 132:102 133:21 134:214 135:52 136:215
137:135 138:296 139:115 140:481 141:270 142:380
143:431 144:471 145:58 146:455 147:214 148:681
149:252 150:156 151:190 152:347 153:179 154:5
155:401 156:199 157:355 158:139 159:458 160:319
161:206 162:310 163:163 164:515 165:366 166:531
167:431 168:746 169:153 170:839 171:81 172:1
173:1628 174:619 175:393 176:147 177:201 178:1014
180:918 181:26 182:506 183:237 184:361 185:1
186:1351 187:750 188:912 189:970 190:5111 192:5909
193:4975 194:3511 195:3060 196:1198 197:112 198:3586
199:4015 200:5543 201:1479 202:8419 203:8462 204:4254
205:2304 206:2671 207:2801 208:3999 209:3411 210:2709
211:1410 212:2087 213:1754 214:791 215:70 216:4891
217:1631 218:530 219:348 220:1206 221:485 222:361
223:239
End of report
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