Routing Table Report 04:00 +10GMT Tue 12 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362954
Prefixes after maximum aggregation: 164986
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180097
Total ASes present in the Internet Routing Table: 38129
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31713
Origin ASes announcing only one prefix: 15238
Transit ASes present in the Internet Routing Table: 5173
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 936
Unregistered ASNs in the Routing Table: 521
Number of 32-bit ASNs allocated by the RIRs: 1542
Number of 32-bit ASNs visible in the Routing Table: 1243
Prefixes from 32-bit ASNs in the Routing Table: 2873
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2493682400
Equivalent to 148 /8s, 162 /16s and 146 /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: 91.1
Total number of prefixes smaller than registry allocations: 151381
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90218
Total APNIC prefixes after maximum aggregation: 30259
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86954
Unique aggregates announced from the APNIC address blocks: 37054
APNIC Region origin ASes present in the Internet Routing Table: 4500
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 57
Number of APNIC addresses announced to Internet: 621419840
Equivalent to 37 /8s, 10 /16s and 29 /24s
Percentage of available APNIC address space announced: 78.8
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: 141421
Total ARIN prefixes after maximum aggregation: 72851
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113366
Unique aggregates announced from the ARIN address blocks: 46681
ARIN Region origin ASes present in the Internet Routing Table: 14459
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5528
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819594112
Equivalent to 48 /8s, 218 /16s and 3 /24s
Percentage of available ARIN address space announced: 65.1
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: 86593
Total RIPE prefixes after maximum aggregation: 49171
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79972
Unique aggregates announced from the RIPE address blocks: 52859
RIPE Region origin ASes present in the Internet Routing Table: 15800
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7875
RIPE Region transit ASes present in the Internet Routing Table: 2502
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: 914
Number of RIPE addresses announced to Internet: 478938112
Equivalent to 28 /8s, 140 /16s and 4 /24s
Percentage of available RIPE address space announced: 77.2
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: 33454
Total LACNIC prefixes after maximum aggregation: 7568
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32586
Unique aggregates announced from the LACNIC address blocks: 16966
LACNIC Region origin ASes present in the Internet Routing Table: 1477
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 270
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: 255
Number of LACNIC addresses announced to Internet: 85886464
Equivalent to 5 /8s, 30 /16s and 134 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8179
Total AfriNIC prefixes after maximum aggregation: 1959
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6452
Unique aggregates announced from the AfriNIC address blocks: 1985
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.76
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 24316160
Equivalent to 1 /8s, 115 /16s and 9 /24s
Percentage of available AfriNIC address space announced: 36.2
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 2469 11043 937 Korea Telecom (KIX)
17974 1791 461 41 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 85 TPG Internet Pty Ltd
4755 1498 635 172 TATA Communications formerly
24560 1154 336 187 Bharti Airtel Ltd., Telemedia
9829 1105 922 46 BSNL National Internet Backbo
9583 1060 78 505 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 963 186 107 Hathway IP Over Cable Interne
18101 932 116 139 Reliance Infocom Ltd Internet
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 3603 3818 243 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1804 681 122 PaeTec Communications, Inc.
4323 1656 1082 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
19262 1429 4778 392 Verizon Global Networks
7018 1367 7069 893 AT&T WorldNet Services
22773 1350 2897 88 Cox Communications, Inc.
6478 1346 251 618 AT&T Worldnet Services
7029 1286 791 301 Windstream Communications Inc
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 529 106 185 BILISIM TELEKOM
6830 512 1780 317 UPC Distribution Services
3292 467 2076 402 TDC Tele Danmark
20940 458 131 354 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 447 133 25 Bulgarian Telecommunication C
29049 441 33 45 AzerSat LLC.
3320 422 8151 369 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 1543 282 158 TVCABLE BOGOTA
8151 1416 2744 348 UniNet S.A. de C.V.
28573 1272 995 78 NET Servicos de Comunicao S.A
7303 1002 512 177 Telecom Argentina Stet-France
6503 743 354 74 AVANTEL, S.A.
14420 689 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 534 230 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 53 53 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 793 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 514 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 148 441 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 3603 3818 243 bellsouth.net, inc.
23456 2873 700 1540 32-bit ASN transition
4766 2469 11043 937 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1804 681 122 PaeTec Communications, Inc.
17974 1791 461 41 PT TELEKOMUNIKASI INDONESIA
4323 1656 1082 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
7545 1548 301 85 TPG Internet Pty Ltd
10620 1543 282 158 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 1791 1750 PT TELEKOMUNIKASI INDONESIA
1785 1804 1682 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2469 1532 Korea Telecom (KIX)
7545 1548 1463 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2873 1333 32-bit ASN transition
4755 1498 1326 TATA Communications formerly
22773 1350 1262 Cox Communications, Inc.
4323 1656 1256 Time Warner Telecom
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 /8:22 /9:12 /10:28 /11:81 /12:232
/13:468 /14:805 /15:1401 /16:11992 /17:5887 /18:9828
/19:19475 /20:25884 /21:26214 /22:34770 /23:33575 /24:188978
/25:1082 /26:1260 /27:735 /28:208 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3603 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1411 2873 32-bit ASN transition
6478 1316 1346 AT&T Worldnet Services
11492 1096 1142 Cable One
7011 1054 1156 Citizens Utilities
1785 1053 1804 PaeTec Communications, Inc.
7029 1033 1286 Windstream Communications Inc
22773 864 1350 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:324 2:48 4:16 5:1 6:3 8:335
12:1968 13:1 14:481 15:15 16:3 17:5
20:10 23:13 24:1679 27:813 31:490 32:64
33:4 34:2 36:4 38:744 40:103 41:2546
42:32 44:3 46:1030 47:3 49:199 50:442
52:13 54:2 55:5 56:2 57:35 58:860
59:467 60:386 61:1183 62:1043 63:1931 64:3941
65:2292 66:3867 67:1894 68:1079 69:3039 70:754
71:389 72:1881 74:2382 75:316 76:341 77:886
78:709 79:459 80:1114 81:838 82:498 83:457
84:693 85:1076 86:546 87:761 88:336 89:1531
90:223 91:3954 92:530 93:1053 94:1333 95:860
96:446 97:255 98:891 99:37 101:75 103:110
106:10 107:21 108:68 109:1027 110:614 111:708
112:303 113:403 114:546 115:673 116:966 117:665
118:856 119:1149 120:313 121:678 122:1597 123:976
124:1303 125:1230 128:246 129:172 130:168 131:577
132:112 133:21 134:214 135:48 136:216 137:136
138:298 139:116 140:478 141:243 142:404 143:415
144:485 145:54 146:450 147:214 148:681 149:248
150:162 151:189 152:331 153:182 154:4 155:394
156:198 157:354 158:138 159:450 160:311 161:201
162:308 163:164 164:505 165:357 166:529 167:431
168:726 169:154 170:842 171:78 172:1 173:1644
174:610 175:376 176:141 177:167 178:980 180:881
181:23 182:487 183:222 184:344 185:1 186:1276
187:706 188:882 189:941 190:4943 192:5902 193:4973
194:3524 195:3029 196:1234 197:41 198:3572 199:3960
200:5517 201:1488 202:8387 203:8417 204:4220 205:2308
206:2680 207:2813 208:3973 209:3439 210:2695 211:1465
212:2101 213:1746 214:784 215:69 216:4939 217:1641
218:546 219:359 220:1202 221:492 222:357 223:216
End of report
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