Routing Table Report 04:00 +10GMT Mon 11 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362571
Prefixes after maximum aggregation: 165002
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179960
Total ASes present in the Internet Routing Table: 38110
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31705
Origin ASes announcing only one prefix: 15244
Transit ASes present in the Internet Routing Table: 5168
Transit-only ASes present in the Internet Routing Table: 130
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: 925
Unregistered ASNs in the Routing Table: 516
Number of 32-bit ASNs allocated by the RIRs: 1539
Number of 32-bit ASNs visible in the Routing Table: 1237
Prefixes from 32-bit ASNs in the Routing Table: 2848
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2493363648
Equivalent to 148 /8s, 157 /16s and 181 /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: 151190
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90075
Total APNIC prefixes after maximum aggregation: 30264
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86828
Unique aggregates announced from the APNIC address blocks: 37041
APNIC Region origin ASes present in the Internet Routing Table: 4499
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 56
Number of APNIC addresses announced to Internet: 621347616
Equivalent to 37 /8s, 9 /16s and 3 /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: 141444
Total ARIN prefixes after maximum aggregation: 72899
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113394
Unique aggregates announced from the ARIN address blocks: 46662
ARIN Region origin ASes present in the Internet Routing Table: 14466
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5530
ARIN Region transit ASes present in the Internet Routing Table: 1524
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: 819629440
Equivalent to 48 /8s, 218 /16s and 141 /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: 86451
Total RIPE prefixes after maximum aggregation: 49124
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79829
Unique aggregates announced from the RIPE address blocks: 52793
RIPE Region origin ASes present in the Internet Routing Table: 15790
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7877
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: 909
Number of RIPE addresses announced to Internet: 478706432
Equivalent to 28 /8s, 136 /16s and 123 /24s
Percentage of available RIPE address space announced: 77.1
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: 33394
Total LACNIC prefixes after maximum aggregation: 7580
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32497
Unique aggregates announced from the LACNIC address blocks: 16932
LACNIC Region origin ASes present in the Internet Routing Table: 1473
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 267
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: 85865216
Equivalent to 5 /8s, 30 /16s and 51 /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: 8146
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6430
Unique aggregates announced from the AfriNIC address blocks: 1978
AfriNIC Region origin ASes present in the Internet Routing Table: 465
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 24271360
Equivalent to 1 /8s, 114 /16s and 90 /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 2470 11044 938 Korea Telecom (KIX)
17974 1778 461 41 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 85 TPG Internet Pty Ltd
4755 1498 635 171 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 1046 2091 298 CNCGROUP IP network: China169
17488 964 186 105 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 3606 3819 244 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 1287 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 536 106 184 BILISIM TELEKOM
6830 512 1780 317 UPC Distribution Services
3292 466 2076 401 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 454 593 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 1420 2746 350 UniNet S.A. de C.V.
28573 1272 995 78 NET Servicos de Comunicao S.A
7303 1003 512 178 Telecom Argentina Stet-France
6503 747 354 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 788 147 36 LINKdotNET AS number
8452 778 445 11 TEDATA
15475 514 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 217 12 14 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 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 3606 3819 244 bellsouth.net, inc.
23456 2848 698 1534 32-bit ASN transition
4766 2470 11044 938 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1804 681 122 PaeTec Communications, Inc.
17974 1778 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 1778 1737 PT TELEKOMUNIKASI INDONESIA
1785 1804 1682 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2470 1532 Korea Telecom (KIX)
7545 1548 1463 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
4755 1498 1327 TATA Communications formerly
23456 2848 1314 32-bit ASN transition
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 /14:804 /15:1401 /16:11996 /17:5878 /18:9811
/19:19468 /20:25839 /21:26164 /22:34689 /23:33588 /24:188816
/25:1072 /26:1252 /27:730 /28:203 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2218 3606 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1399 2848 32-bit ASN transition
6478 1316 1346 AT&T Worldnet Services
11492 1075 1121 Cable One
7011 1054 1156 Citizens Utilities
1785 1053 1804 PaeTec Communications, Inc.
7029 1034 1287 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 2:47 4:16 5:1 6:3 8:337
12:1975 13:1 14:481 15:15 16:3 17:5
20:10 23:13 24:1669 27:813 31:490 32:64
33:4 34:2 36:4 38:744 40:103 41:2516
42:32 44:3 46:1030 47:3 49:198 50:442
52:13 54:2 55:4 56:2 57:35 58:860
59:478 60:386 61:1180 62:1040 63:1931 64:3936
65:2290 66:3868 67:1897 68:1092 69:3040 70:756
71:389 72:1881 74:2380 75:316 76:341 77:887
78:708 79:459 80:1115 81:837 82:499 83:456
84:690 85:1066 86:546 87:758 88:335 89:1524
90:223 91:3950 92:536 93:1052 94:1334 95:859
96:446 97:255 98:891 99:37 101:77 103:113
106:10 107:21 108:70 109:996 110:615 111:708
112:303 113:405 114:542 115:674 116:965 117:666
118:855 119:1154 120:312 121:676 122:1593 123:971
124:1304 125:1229 128:246 129:172 130:166 131:575
132:112 133:21 134:214 135:48 136:208 137:136
138:299 139:116 140:476 141:242 142:404 143:415
144:482 145:54 146:450 147:213 148:679 149:248
150:162 151:189 152:331 153:182 154:4 155:394
156:198 157:353 158:138 159:447 160:306 161:201
162:308 163:165 164:503 165:358 166:529 167:431
168:736 169:154 170:842 171:78 172:1 173:1645
174:610 175:377 176:141 177:166 178:987 180:873
181:23 182:489 183:224 184:344 185:1 186:1277
187:702 188:880 189:936 190:4949 192:5897 193:4965
194:3515 195:3021 196:1236 197:41 198:3575 199:3963
200:5500 201:1474 202:8399 203:8414 204:4219 205:2326
206:2679 207:2809 208:3962 209:3446 210:2697 211:1466
212:2095 213:1746 214:779 215:70 216:4938 217:1641
218:546 219:359 220:1202 221:492 222:362 223:185
End of report
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