Routing Table Report 08:00 +10GMT Wed 13 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 357692
Prefixes after maximum aggregation: 163174
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180481
Total ASes present in the Internet Routing Table: 36742
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31694
Origin ASes announcing only one prefix: 15266
Transit ASes present in the Internet Routing Table: 5048
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2310
Unregistered ASNs in the Routing Table: 606
Number of 32-bit ASNs allocated by the RIRs: 1543
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2890
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2493173248
Equivalent to 148 /8s, 154 /16s and 206 /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: 147599
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86011
Total APNIC prefixes after maximum aggregation: 28954
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83697
Unique aggregates announced from the APNIC address blocks: 37426
APNIC Region origin ASes present in the Internet Routing Table: 4455
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 4.1
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: 620012032
Equivalent to 36 /8s, 244 /16s and 162 /24s
Percentage of available APNIC address space announced: 78.6
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: 140211
Total ARIN prefixes after maximum aggregation: 72437
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112430
Unique aggregates announced from the ARIN address blocks: 46703
ARIN Region origin ASes present in the Internet Routing Table: 14390
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5517
ARIN Region transit ASes present in the Internet Routing Table: 1458
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802967296
Equivalent to 47 /8s, 220 /16s and 79 /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: 86876
Total RIPE prefixes after maximum aggregation: 49104
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80236
Unique aggregates announced from the RIPE address blocks: 52805
RIPE Region origin ASes present in the Internet Routing Table: 15790
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7892
RIPE Region transit ASes present in the Internet Routing Table: 2475
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 478923520
Equivalent to 28 /8s, 139 /16s and 203 /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: 32669
Total LACNIC prefixes after maximum aggregation: 7475
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32135
Unique aggregates announced from the LACNIC address blocks: 17025
LACNIC Region origin ASes present in the Internet Routing Table: 1467
LACNIC Prefixes per ASN: 21.91
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 257
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: 85856256
Equivalent to 5 /8s, 30 /16s and 16 /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: 8300
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6447
Unique aggregates announced from the AfriNIC address blocks: 1983
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.4
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: 24313344
Equivalent to 1 /8s, 114 /16s and 254 /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 1914 11052 637 Korea Telecom (KIX)
7545 1551 301 84 TPG Internet Pty Ltd
17974 1548 458 45 PT Telekomunikasi Indonesia
4755 1495 375 168 TATA Communications formerly
24560 1154 336 187 Bharti Airtel Ltd., Telemedia
9829 1105 922 46 National Internet Backbone
9583 1062 78 506 Sify Limited
17488 962 186 105 Hathway IP Over Cable Interne
4808 946 2003 274 CNCGROUP IP network China169
18101 933 116 139 Reliance Infocom Ltd Internet
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 3599 3819 245 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1808 681 122 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1532 628 Charter Communications
19262 1430 4790 391 Verizon Online LLC
7029 1384 1031 208 Windstream Communications Inc
7018 1382 7102 907 AT&T Services, Inc.
22773 1349 2897 88 Cox Communications Inc.
2386 1260 521 906 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 536 106 184 BILISIM TELEKOM
6830 511 1780 317 UPC Broadband
3292 468 2077 403 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 456 593 7 France Telecom Espana SA
8866 447 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
8551 405 355 38 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 1543 282 158 Types of queries are: POCs, o
28573 1257 995 78 Types of queries are: POCs, o
8151 1253 2728 350 Uninet S.A. de C.V.
7303 986 511 165 Telecom Argentina S.A.
6503 736 354 74 Axtel, S.A.B. de C.V.
14420 689 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 534 230 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 498 54 48 Telconet S.A
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 791 147 34 LINKdotNET AS number
8452 776 445 11 TEDATA
15475 513 74 8 Nile Online
36992 314 415 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 149 441 87 MTN Network Solutions
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 3599 3819 245 BellSouth.net Inc.
23456 2890 703 1544 32-bit ASN transition
4766 1914 11052 637 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1808 681 122 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1532 628 Charter Communications
7545 1551 301 84 TPG Internet Pty Ltd
17974 1548 458 45 PT Telekomunikasi Indonesia
10620 1543 282 158 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1808 1686 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1548 1503 PT Telekomunikasi Indonesia
7545 1551 1467 TPG Internet Pty Ltd
10620 1543 1385 Types of queries are: POCs, o
23456 2890 1346 32-bit ASN transition
4755 1495 1327 TATA Communications formerly
4766 1914 1277 Korea Telecom (KIX)
22773 1349 1261 Cox Communications Inc.
4323 1657 1256 tw telecom holdings, 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:26 /11:80 /12:232
/13:468 /14:804 /15:1403 /16:11962 /17:5872 /18:9763
/19:19575 /20:25924 /21:26141 /22:34507 /23:33206 /24:187188
/25:13 /26:20 /27:25 /28:160 /29:104 /30:61
/31:0 /32:125
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3599 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1438 1543 Types of queries are: POCs, o
23456 1412 2890 32-bit ASN transition
11492 1093 1139 CABLE ONE, INC.
7029 1064 1384 Windstream Communications Inc
7011 1054 1156 Frontier Communications of Am
1785 1053 1808 PaeTec Communications, Inc.
6478 1051 1080 AT&T Services, Inc.
22773 863 1349 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:322 2:43 4:16 5:1 6:3 8:336
12:1965 13:1 14:477 15:15 16:3 17:5
20:10 23:13 24:1673 27:813 31:481 32:59
33:4 34:2 36:4 38:739 40:103 41:2525
42:32 44:3 46:1029 47:3 49:200 50:462
52:13 54:2 55:5 56:2 57:34 58:814
59:473 60:384 61:1022 62:1043 63:1932 64:3921
65:2298 66:3869 67:1891 68:1085 69:3038 70:753
71:389 72:1883 74:2380 75:316 76:340 77:886
78:706 79:466 80:1115 81:842 82:505 83:457
84:691 85:1063 86:535 87:762 88:337 89:1530
90:223 91:3966 92:513 93:1050 94:1338 95:861
96:410 97:257 98:890 99:37 101:72 103:117
106:10 107:21 108:70 109:1026 110:615 111:709
112:297 113:401 114:544 115:665 116:944 117:662
118:815 119:1140 120:313 121:653 122:1594 123:960
124:1269 125:1224 128:208 129:166 130:162 131:574
132:103 133:21 134:206 135:48 136:214 137:133
138:299 139:114 140:456 141:241 142:388 143:416
144:483 145:54 146:446 147:211 148:613 149:247
150:156 151:189 152:339 153:182 154:3 155:397
156:195 157:325 158:138 159:383 160:311 161:192
162:305 163:153 164:505 165:356 166:524 167:432
168:735 169:153 170:846 171:78 172:1 173:1627
174:610 175:361 176:142 177:172 178:986 180:870
181:23 182:476 183:225 184:343 185:1 186:1278
187:726 188:875 189:941 190:4940 192:5854 193:4975
194:3522 195:3021 196:1241 197:41 198:3526 199:3924
200:5423 201:1484 202:8201 203:8350 204:4156 205:2305
206:2583 207:2733 208:3963 209:3422 210:2602 211:1455
212:2113 213:1752 214:762 215:69 216:4903 217:1636
218:534 219:356 220:1195 221:476 222:310 223:214
End of report
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