Routing Table Report 04:00 +10GMT Fri 15 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363120
Prefixes after maximum aggregation: 165275
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180527
Total ASes present in the Internet Routing Table: 38196
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31752
Origin ASes announcing only one prefix: 15262
Transit ASes present in the Internet Routing Table: 5192
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 (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 957
Unregistered ASNs in the Routing Table: 532
Number of 32-bit ASNs allocated by the RIRs: 1551
Number of 32-bit ASNs visible in the Routing Table: 1252
Prefixes from 32-bit ASNs in the Routing Table: 2889
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2477714656
Equivalent to 147 /8s, 174 /16s and 236 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.8
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: 151488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90120
Total APNIC prefixes after maximum aggregation: 30265
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86862
Unique aggregates announced from the APNIC address blocks: 37385
APNIC Region origin ASes present in the Internet Routing Table: 4515
APNIC Prefixes per ASN: 19.24
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 60
Number of APNIC addresses announced to Internet: 621642816
Equivalent to 37 /8s, 13 /16s and 132 /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: 141487
Total ARIN prefixes after maximum aggregation: 73051
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113438
Unique aggregates announced from the ARIN address blocks: 46664
ARIN Region origin ASes present in the Internet Routing Table: 14479
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5531
ARIN Region transit ASes present in the Internet Routing Table: 1527
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: 803112064
Equivalent to 47 /8s, 222 /16s and 132 /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: 86569
Total RIPE prefixes after maximum aggregation: 49207
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79918
Unique aggregates announced from the RIPE address blocks: 52884
RIPE Region origin ASes present in the Internet Routing Table: 15811
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7883
RIPE Region transit ASes present in the Internet Routing Table: 2498
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: 479278336
Equivalent to 28 /8s, 145 /16s and 53 /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: 33616
Total LACNIC prefixes after maximum aggregation: 7587
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32714
Unique aggregates announced from the LACNIC address blocks: 17014
LACNIC Region origin ASes present in the Internet Routing Table: 1484
LACNIC Prefixes per ASN: 22.04
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 261
Number of LACNIC addresses announced to Internet: 85967360
Equivalent to 5 /8s, 31 /16s and 194 /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: 8221
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6514
Unique aggregates announced from the AfriNIC address blocks: 2003
AfriNIC Region origin ASes present in the Internet Routing Table: 472
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 24404224
Equivalent to 1 /8s, 116 /16s and 97 /24s
Percentage of available AfriNIC address space announced: 36.4
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 2470 11044 938 Korea Telecom (KIX)
7545 1554 301 85 TPG Internet Pty Ltd
17974 1544 456 43 PT TELEKOMUNIKASI INDONESIA
4755 1505 635 170 TATA Communications formerly
24560 1154 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 965 186 110 Hathway IP Over Cable Interne
18101 931 116 138 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 3595 3818 243 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1805 681 122 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1427 4784 392 Verizon Global Networks
7018 1368 7069 894 AT&T WorldNet Services
22773 1351 2897 88 Cox Communications, Inc.
7029 1289 791 304 Windstream Communications Inc
2386 1260 520 907 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 536 106 184 BILISIM TELEKOM
6830 511 1780 316 UPC Distribution Services
3292 467 2077 402 TDC Tele Danmark
20940 458 131 354 Akamai Technologies European
12479 457 593 7 Uni2 Autonomous System
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 397 1803 310 UUNET - Commercial IP service
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 1438 2746 354 UniNet S.A. de C.V.
28573 1276 995 78 NET Servicos de Comunicao S.A
7303 1009 512 177 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 533 230 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 507 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 795 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 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 3595 3818 243 bellsouth.net, inc.
23456 2889 703 1551 32-bit ASN transition
4766 2470 11044 938 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1805 681 122 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
7545 1554 301 85 TPG Internet Pty Ltd
17974 1544 456 43 PT TELEKOMUNIKASI INDONESIA
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
1785 1805 1683 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2470 1532 Korea Telecom (KIX)
17974 1544 1501 PT TELEKOMUNIKASI INDONESIA
7545 1554 1469 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2889 1338 32-bit ASN transition
4755 1505 1335 TATA Communications formerly
22773 1351 1263 Cox Communications, Inc.
4323 1657 1257 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 /8:20 /9:12 /10:26 /11:80 /12:232
/13:464 /14:795 /15:1396 /16:12003 /17:5882 /18:9825
/19:19499 /20:25881 /21:26179 /22:34745 /23:33616 /24:189155
/25:1088 /26:1263 /27:734 /28:208 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3595 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1412 2889 32-bit ASN transition
11492 1097 1143 Cable One
7011 1055 1157 Citizens Utilities
6478 1054 1083 AT&T Worldnet Services
1785 1053 1805 PaeTec Communications, Inc.
7029 1036 1289 Windstream Communications Inc
22773 865 1351 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:325 2:38 4:16 5:1 6:3 8:337
12:1969 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1679 27:816 31:502 32:64
33:4 34:2 36:4 38:744 40:103 41:2564
42:32 44:3 46:1037 47:3 49:200 50:469
52:13 54:2 55:6 56:2 57:35 58:862
59:478 60:386 61:1121 62:1035 63:1935 64:3951
65:2300 66:3879 67:1872 68:1088 69:3045 70:754
71:389 72:1887 74:2383 75:317 76:341 77:886
78:710 79:457 80:1116 81:842 82:497 83:453
84:691 85:1066 86:519 87:762 88:336 89:1536
90:224 91:3960 92:528 93:1052 94:1336 95:857
96:414 97:259 98:890 99:37 101:77 103:132
106:10 107:22 108:70 109:1023 110:607 111:709
112:304 113:406 114:550 115:674 116:968 117:667
118:826 119:1163 120:314 121:676 122:1606 123:976
124:1304 125:1234 128:246 129:172 130:169 131:576
132:111 133:21 134:213 135:48 136:210 137:137
138:272 139:116 140:479 141:244 142:403 143:418
144:482 145:55 146:452 147:213 148:680 149:248
150:159 151:189 152:341 153:182 154:4 155:397
156:199 157:352 158:138 159:450 160:313 161:202
162:309 163:164 164:498 165:362 166:529 167:432
168:736 169:153 170:842 171:78 172:1 173:1619
174:610 175:374 176:142 177:170 178:1002 180:901
181:23 182:489 183:228 184:346 185:1 186:1277
187:732 188:896 189:943 190:4970 192:5897 193:4975
194:3528 195:3030 196:1241 197:43 198:3576 199:3968
200:5564 201:1491 202:8420 203:8430 204:4230 205:2326
206:2664 207:2808 208:3957 209:3446 210:2695 211:1452
212:2101 213:1747 214:779 215:69 216:4935 217:1633
218:543 219:359 220:1202 221:496 222:338 223:216
End of report
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