Routing Table Report 08:00 +10GMT Sat 13 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 361761
Prefixes after maximum aggregation: 164444
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182308
Total ASes present in the Internet Routing Table: 37001
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 31921
Origin ASes announcing only one prefix: 15361
Transit ASes present in the Internet Routing Table: 5080
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2451
Unregistered ASNs in the Routing Table: 691
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3057
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2510099712
Equivalent to 149 /8s, 157 /16s and 21 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149491
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87509
Total APNIC prefixes after maximum aggregation: 29136
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 84927
Unique aggregates announced from the APNIC address blocks: 37852
APNIC Region origin ASes present in the Internet Routing Table: 4480
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 678
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: 623190272
Equivalent to 37 /8s, 37 /16s and 33 /24s
Percentage of available APNIC address space announced: 79.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 141023
Total ARIN prefixes after maximum aggregation: 72771
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113170
Unique aggregates announced from the ARIN address blocks: 47029
ARIN Region origin ASes present in the Internet Routing Table: 14500
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5588
ARIN Region transit ASes present in the Internet Routing Table: 1467
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803364096
Equivalent to 47 /8s, 226 /16s and 93 /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: 87767
Total RIPE prefixes after maximum aggregation: 49601
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81001
Unique aggregates announced from the RIPE address blocks: 53279
RIPE Region origin ASes present in the Internet Routing Table: 15869
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7915
RIPE Region transit ASes present in the Internet Routing Table: 2499
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487033856
Equivalent to 29 /8s, 7 /16s and 140 /24s
Percentage of available RIPE address space announced: 78.5
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: 33365
Total LACNIC prefixes after maximum aggregation: 7536
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32769
Unique aggregates announced from the LACNIC address blocks: 17286
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 87439872
Equivalent to 5 /8s, 54 /16s and 58 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8346
Total AfriNIC prefixes after maximum aggregation: 2030
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6480
Unique aggregates announced from the AfriNIC address blocks: 2044
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26915072
Equivalent to 1 /8s, 154 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1922 11036 641 Korea Telecom (KIX)
17974 1595 516 31 PT Telekomunikasi Indonesia
7545 1567 301 84 TPG Internet Pty Ltd
4755 1526 374 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 National Internet Backbone
9583 1070 78 490 Sify Limited
7552 991 1062 11 Vietel Corporation
17488 985 187 126 Hathway IP Over Cable Interne
4808 952 2005 273 CNCGROUP IP network China169
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 3586 3817 228 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1820 681 124 PaeTec Communications, Inc.
7029 1647 1031 210 Windstream Communications Inc
4323 1617 1102 402 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
22773 1408 2903 93 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1370 7085 898 AT&T Services, Inc.
2386 1251 519 900 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 538 107 185 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 471 134 364 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
12479 455 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
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 1574 290 165 Types of queries are: POCs, o
8151 1261 2737 354 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1044 578 162 Telecom Argentina S.A.
6503 731 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 532 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 514 102 92 Alestra, S. de R.L. de C.V.
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 803 147 41 LINKdotNET AS number
8452 651 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3586 3817 228 BellSouth.net Inc.
23456 3057 731 1642 32-bit ASN transition
4766 1922 11036 641 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1820 681 124 PaeTec Communications, Inc.
7029 1647 1031 210 Windstream Communications Inc
4323 1617 1102 402 tw telecom holdings, inc.
17974 1595 516 31 PT Telekomunikasi Indonesia
20115 1590 1538 623 Charter Communications
10620 1574 290 165 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 1820 1696 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1595 1564 PT Telekomunikasi Indonesia
7545 1567 1483 TPG Internet Pty Ltd
7029 1647 1437 Windstream Communications Inc
23456 3057 1415 32-bit ASN transition
10620 1574 1409 Types of queries are: POCs, o
4755 1526 1359 TATA Communications formerly
22773 1408 1315 Cox Communications Inc.
4766 1922 1281 Korea Telecom (KIX)
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
31.217.128.0/19 43531 RIPE Network Coordination Cen
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 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 /10:27 /11:81 /12:234
/13:465 /14:799 /15:1411 /16:12028 /17:5885 /18:9869
/19:19618 /20:26427 /21:26404 /22:35030 /23:33814 /24:189126
/25:12 /26:20 /27:23 /28:157 /29:111 /30:61
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3586 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1501 3057 32-bit ASN transition
10620 1469 1574 Types of queries are: POCs, o
7029 1326 1647 Windstream Communications Inc
11492 1100 1146 CABLE ONE, INC.
7011 1057 1159 Frontier Communications of Am
1785 1052 1820 PaeTec Communications, Inc.
22773 904 1408 Cox Communications Inc.
30036 895 917 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:353 2:46 4:15 5:1 6:3 8:340
12:1960 13:1 14:499 15:15 16:3 17:5
20:10 23:19 24:1683 27:866 31:512 32:59
33:4 34:2 36:4 38:725 40:107 41:2499
42:43 44:3 46:1068 47:3 49:219 50:393
52:13 54:2 55:5 56:2 57:34 58:824
59:495 60:377 61:1023 62:1067 63:1926 64:3977
65:2299 66:3909 67:1914 68:1101 69:3084 70:776
71:373 72:1867 74:2427 75:328 76:341 77:863
78:707 79:479 80:1130 81:828 82:492 83:467
84:685 85:1077 86:522 87:839 88:336 89:1533
90:224 91:4042 92:526 93:1119 94:1342 95:870
96:413 97:266 98:919 99:37 101:74 103:187
106:65 107:31 108:73 109:1016 110:617 111:729
112:301 113:404 114:560 115:677 116:967 117:658
118:825 119:1173 120:314 121:662 122:1603 123:978
124:1336 125:1279 128:208 129:167 130:165 131:575
132:108 133:21 134:205 135:52 136:208 137:137
138:296 139:114 140:466 141:274 142:364 143:417
144:484 145:58 146:454 147:215 148:627 149:251
150:154 151:190 152:438 153:182 154:4 155:400
156:196 157:301 158:137 159:391 160:316 161:199
162:306 163:154 164:515 165:362 166:532 167:432
168:742 169:151 170:840 171:81 172:1 173:1644
174:623 175:381 176:164 177:209 178:1005 180:921
181:26 182:501 183:241 184:363 185:1 186:1361
187:704 188:907 189:927 190:5052 192:5875 193:4975
194:3506 195:3053 196:1212 197:123 198:3538 199:3985
200:5466 201:1473 202:8198 203:8384 204:4187 205:2295
206:2591 207:2726 208:4004 209:3390 210:2608 211:1449
212:2101 213:1761 214:767 215:70 216:4857 217:1616
218:544 219:349 220:1195 221:497 222:310 223:232
End of report
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