Routing Table Report 04:00 +10GMT Tue 02 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 365464
Prefixes after maximum aggregation: 165985
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181491
Total ASes present in the Internet Routing Table: 38332
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 31814
Origin ASes announcing only one prefix: 15300
Transit ASes present in the Internet Routing Table: 5227
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 992
Unregistered ASNs in the Routing Table: 568
Number of 32-bit ASNs allocated by the RIRs: 1608
Number of 32-bit ASNs visible in the Routing Table: 1291
Prefixes from 32-bit ASNs in the Routing Table: 2989
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2488580096
Equivalent to 148 /8s, 84 /16s and 184 /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: 91.2
Total number of prefixes smaller than registry allocations: 152489
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91322
Total APNIC prefixes after maximum aggregation: 30455
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 87863
Unique aggregates announced from the APNIC address blocks: 37645
APNIC Region origin ASes present in the Internet Routing Table: 4524
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 67
Number of APNIC addresses announced to Internet: 622614624
Equivalent to 37 /8s, 28 /16s and 88 /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: 141855
Total ARIN prefixes after maximum aggregation: 73139
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113675
Unique aggregates announced from the ARIN address blocks: 46759
ARIN Region origin ASes present in the Internet Routing Table: 14520
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5562
ARIN Region transit ASes present in the Internet Routing Table: 1538
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: 803242368
Equivalent to 47 /8s, 224 /16s and 129 /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: 87055
Total RIPE prefixes after maximum aggregation: 49466
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80370
Unique aggregates announced from the RIPE address blocks: 53086
RIPE Region origin ASes present in the Internet Routing Table: 15841
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7901
RIPE Region transit ASes present in the Internet Routing Table: 2519
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: 484370304
Equivalent to 28 /8s, 222 /16s and 231 /24s
Percentage of available RIPE address space announced: 78.0
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: 33854
Total LACNIC prefixes after maximum aggregation: 7647
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33033
Unique aggregates announced from the LACNIC address blocks: 17227
LACNIC Region origin ASes present in the Internet Routing Table: 1492
LACNIC Prefixes per ASN: 22.14
LACNIC Region origin ASes announcing only one prefix: 438
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: 278
Number of LACNIC addresses announced to Internet: 87258624
Equivalent to 5 /8s, 51 /16s and 118 /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: 8222
Total AfriNIC prefixes after maximum aggregation: 1986
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6519
Unique aggregates announced from the AfriNIC address blocks: 2028
AfriNIC Region origin ASes present in the Internet Routing Table: 477
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 151
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: 26892800
Equivalent to 1 /8s, 154 /16s and 90 /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 2494 11046 949 Korea Telecom (KIX)
17974 1785 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1558 301 85 TPG Internet Pty Ltd
4755 1520 635 172 TATA Communications formerly
24560 1195 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 BSNL National Internet Backbo
9583 1057 77 496 Sify Limited
4808 1052 2093 300 CNCGROUP IP network: China169
17488 974 193 118 Hathway IP Over Cable Interne
7552 952 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 3620 3818 237 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1812 681 121 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
7029 1607 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1360 7052 889 AT&T WorldNet Services
2386 1255 520 904 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 465 132 358 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 55 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 1413 2748 349 UniNet S.A. de C.V.
28573 1284 996 67 NET Servicos de Comunicao S.A
7303 1065 577 174 Telecom Argentina Stet-France
6503 764 451 78 AVANTEL, S.A.
14420 701 56 82 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
8452 799 445 11 TEDATA
24863 786 147 42 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 228 13 7 Starcomms Nigeria Limited
15706 180 32 6 Sudatel Internet Exchange Aut
24835 177 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 3620 3818 237 bellsouth.net, inc.
23456 2989 721 1603 32-bit ASN transition
4766 2494 11046 949 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1812 681 121 PaeTec Communications, Inc.
17974 1785 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 401 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 1785 1754 PT TELEKOMUNIKASI INDONESIA
1785 1812 1691 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2494 1545 Korea Telecom (KIX)
7545 1558 1473 TPG Internet Pty Ltd
10620 1567 1401 TVCABLE BOGOTA
23456 2989 1386 32-bit ASN transition
7029 1607 1377 Windstream Communications Inc
4755 1520 1348 TATA Communications formerly
22773 1406 1316 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 /14:799 /15:1404 /16:12054 /17:5895 /18:9841
/19:19520 /20:26236 /21:26314 /22:34965 /23:33990 /24:190270
/25:1100 /26:1285 /27:736 /28:201 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2243 3620 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1469 2989 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 1053 1812 PaeTec Communications, Inc.
6478 967 995 AT&T Worldnet Services
22773 905 1406 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:342 2:47 4:16 5:1 6:3 8:341
12:1959 13:1 14:497 15:15 16:3 17:5
20:10 23:18 24:1679 27:858 31:514 32:64
33:4 34:2 36:4 38:727 40:104 41:2539
42:36 44:3 46:1050 47:3 49:200 50:375
52:13 54:2 55:5 56:2 57:34 58:867
59:487 60:378 61:1188 62:1056 63:1939 64:3994
65:2301 66:3904 67:1889 68:1110 69:3033 70:779
71:373 72:1861 74:2435 75:329 76:341 77:861
78:705 79:475 80:1123 81:874 82:502 83:466
84:689 85:1067 86:519 87:764 88:333 89:1537
90:224 91:3982 92:527 93:1117 94:1332 95:870
96:420 97:263 98:891 99:37 101:83 103:177
106:79 107:27 108:73 109:1034 110:614 111:717
112:304 113:410 114:557 115:675 116:990 117:658
118:853 119:1176 120:316 121:679 122:1609 123:988
124:1373 125:1286 128:246 129:169 130:168 131:579
132:115 133:21 134:214 135:52 136:215 137:139
138:295 139:115 140:479 141:257 142:403 143:421
144:484 145:57 146:456 147:215 148:680 149:253
150:158 151:190 152:341 153:182 154:5 155:400
156:199 157:353 158:140 159:456 160:318 161:205
162:310 163:163 164:507 165:366 166:528 167:434
168:745 169:153 170:838 171:81 172:1 173:1621
174:610 175:389 176:148 177:188 178:1007 180:917
181:26 182:504 183:234 184:342 185:1 186:1314
187:761 188:900 189:968 190:4986 192:5915 193:4978
194:3512 195:3063 196:1194 197:111 198:3584 199:4001
200:5539 201:1476 202:8425 203:8432 204:4250 205:2319
206:2662 207:2807 208:3992 209:3405 210:2684 211:1455
212:2093 213:1762 214:791 215:70 216:4899 217:1630
218:548 219:345 220:1202 221:510 222:360 223:238
End of report
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