Routing Table Report 08:00 +10GMT Tue 14 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354599
Prefixes after maximum aggregation: 160882
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178442
Total ASes present in the Internet Routing Table: 36546
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31557
Origin ASes announcing only one prefix: 15184
Transit ASes present in the Internet Routing Table: 4989
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2173
Unregistered ASNs in the Routing Table: 512
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2654
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2487084032
Equivalent to 148 /8s, 61 /16s and 228 /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: 90.9
Total number of prefixes smaller than registry allocations: 146362
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85197
Total APNIC prefixes after maximum aggregation: 28793
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82505
Unique aggregates announced from the APNIC address blocks: 36795
APNIC Region origin ASes present in the Internet Routing Table: 4431
APNIC Prefixes per ASN: 18.62
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 668
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 618119680
Equivalent to 36 /8s, 215 /16s and 194 /24s
Percentage of available APNIC address space announced: 78.4
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: 139529
Total ARIN prefixes after maximum aggregation: 71058
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111787
Unique aggregates announced from the ARIN address blocks: 46071
ARIN Region origin ASes present in the Internet Routing Table: 14349
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5490
ARIN Region transit ASes present in the Internet Routing Table: 1445
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801957632
Equivalent to 47 /8s, 204 /16s and 231 /24s
Percentage of available ARIN address space announced: 63.7
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: 85879
Total RIPE prefixes after maximum aggregation: 48689
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79319
Unique aggregates announced from the RIPE address blocks: 52409
RIPE Region origin ASes present in the Internet Routing Table: 15692
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7843
RIPE Region transit ASes present in the Internet Routing Table: 2456
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 477371648
Equivalent to 28 /8s, 116 /16s and 29 /24s
Percentage of available RIPE address space announced: 76.9
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: 32390
Total LACNIC prefixes after maximum aggregation: 7407
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31834
Unique aggregates announced from the LACNIC address blocks: 16892
LACNIC Region origin ASes present in the Internet Routing Table: 1452
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 246
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84809216
Equivalent to 5 /8s, 14 /16s and 22 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8229
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6343
Unique aggregates announced from the AfriNIC address blocks: 1883
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24057600
Equivalent to 1 /8s, 111 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 35.8
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 1904 9492 620 Korea Telecom (KIX)
17974 1562 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1471 374 164 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1078 80 509 Sify Limited
9829 1043 879 56 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 944 191 102 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3627 3820 252 BellSouth.net Inc.
4323 1961 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
20115 1535 1541 632 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1374 7088 900 AT&T Services, Inc.
22773 1340 2897 87 Cox Communications Inc.
2386 1270 536 910 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 326 31 Goldenlines main autonomous s
34984 522 106 180 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1513 278 157 Types of queries are: POCs, o
28573 1304 992 80 Types of queries are: POCs, o
8151 1247 2708 358 Uninet S.A. de C.V.
7303 967 506 158 Telecom Argentina S.A.
6503 730 354 74 Axtel, S.A.B. de C.V.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 532 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 126 EPM Telecomunicaciones S.A. E
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 792 147 35 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 530 74 8 Nile Online
36992 307 415 16 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3627 3820 252 BellSouth.net Inc.
23456 2654 650 1437 32-bit ASN transition
4323 1961 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1904 9492 620 Korea Telecom (KIX)
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
17974 1562 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
20115 1535 1541 632 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1728 1678 AT&T Services, Inc.
18566 1912 1676 Covad Communications Co.
1785 1798 1676 PaeTec Communications, Inc.
4323 1961 1561 tw telecom holdings, inc.
17974 1562 1524 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1471 1307 TATA Communications formerly
4766 1904 1284 Korea Telecom (KIX)
22773 1340 1253 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
Complete listing at http://thyme.rand.apnic.net/london/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 /11:80 /12:230
/13:462 /14:799 /15:1393 /16:11912 /17:5823 /18:9720
/19:19450 /20:25882 /21:25950 /22:34106 /23:32946 /24:185281
/25:13 /26:17 /27:25 /28:162 /29:103 /30:56
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2231 3627 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1682 1728 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1316 2654 32-bit ASN transition
11492 1086 1132 CABLE ONE, INC.
1785 1050 1798 PaeTec Communications, Inc.
7011 1036 1133 Frontier Communications of Am
7029 940 1258 Alltel Information Services,
4323 872 1961 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:284 2:47 4:16 5:1 6:3 8:336
12:1973 13:1 14:453 15:15 16:3 17:8
20:10 23:11 24:1610 27:778 31:431 32:55
33:4 34:2 37:1 38:731 40:103 41:2516
42:2 44:3 46:924 47:3 49:187 50:408
52:13 54:2 55:3 56:2 57:31 58:796
59:455 60:385 61:1015 62:1054 63:1928 64:3913
65:2253 66:4117 67:1883 68:1080 69:2998 70:700
71:373 72:1847 74:2345 75:308 76:340 77:880
78:700 79:465 80:1103 81:848 82:497 83:464
84:667 85:1080 86:560 87:752 88:331 89:1529
90:204 91:3818 92:526 93:1036 94:1311 95:837
96:440 97:250 98:881 99:36 101:59 103:58
106:6 107:11 108:83 109:998 110:605 111:705
112:293 113:389 114:536 115:680 116:947 117:673
118:789 119:1137 120:308 121:646 122:1615 123:930
124:1260 125:1212 128:209 129:169 130:158 131:576
132:102 133:19 134:206 135:48 136:212 137:143
138:301 139:110 140:459 141:238 142:388 143:415
144:489 145:54 146:439 147:212 148:586 149:245
150:164 151:187 152:330 153:180 154:3 155:398
156:192 157:324 158:137 159:374 160:317 161:200
162:307 163:154 164:500 165:351 166:530 167:423
168:735 169:153 170:826 171:77 172:1 173:1603
174:583 175:358 176:134 177:165 178:994 180:885
181:18 182:453 183:218 184:301 185:1 186:1208
187:779 188:849 189:919 190:4806 192:5786 193:4906
194:3485 195:2991 196:1236 197:19 198:3532 199:3889
200:5454 201:1474 202:8107 203:8276 204:4114 205:2316
206:2601 207:2749 208:3925 209:3443 210:2647 211:1389
212:2022 213:1692 214:745 215:69 216:4895 217:1656
218:534 219:360 220:1198 221:475 222:309 223:157
End of report
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