Routing Table Report 08:00 +10GMT Mon 25 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358374
Prefixes after maximum aggregation: 163580
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180840
Total ASes present in the Internet Routing Table: 36823
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31770
Origin ASes announcing only one prefix: 15305
Transit ASes present in the Internet Routing Table: 5053
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2339
Unregistered ASNs in the Routing Table: 635
Number of 32-bit ASNs allocated by the RIRs: 1590
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2918
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2501173248
Equivalent to 149 /8s, 20 /16s and 224 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
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: 147951
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86401
Total APNIC prefixes after maximum aggregation: 29057
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 84007
Unique aggregates announced from the APNIC address blocks: 37518
APNIC Region origin ASes present in the Internet Routing Table: 4469
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.2
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: 621692160
Equivalent to 37 /8s, 14 /16s and 69 /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: 140434
Total ARIN prefixes after maximum aggregation: 72530
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112631
Unique aggregates announced from the ARIN address blocks: 46667
ARIN Region origin ASes present in the Internet Routing Table: 14435
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5554
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: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802743808
Equivalent to 47 /8s, 216 /16s and 230 /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: 86828
Total RIPE prefixes after maximum aggregation: 49266
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80194
Unique aggregates announced from the RIPE address blocks: 52885
RIPE Region origin ASes present in the Internet Routing Table: 15797
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2485
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484077056
Equivalent to 28 /8s, 218 /16s and 110 /24s
Percentage of available RIPE address space announced: 78.0
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: 33051
Total LACNIC prefixes after maximum aggregation: 7529
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32413
Unique aggregates announced from the LACNIC address blocks: 17122
LACNIC Region origin ASes present in the Internet Routing Table: 1474
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 86366720
Equivalent to 5 /8s, 37 /16s and 218 /24s
Percentage of available LACNIC address space announced: 57.2
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: 8053
Total AfriNIC prefixes after maximum aggregation: 1971
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6359
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 3.6
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: 24423680
Equivalent to 1 /8s, 116 /16s and 173 /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 1916 11037 639 Korea Telecom (KIX)
17974 1554 508 32 PT Telekomunikasi Indonesia
7545 1553 301 83 TPG Internet Pty Ltd
4755 1501 635 169 TATA Communications formerly
24560 1160 336 187 Bharti Airtel Ltd., Telemedia
9829 1119 936 41 National Internet Backbone
9583 1074 80 512 Sify Limited
17488 968 189 110 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 3616 3818 239 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
19262 1411 4760 391 Verizon Online LLC
7029 1391 1031 209 Windstream Communications Inc
7018 1373 7101 903 AT&T Services, Inc.
22773 1352 2897 89 Cox Communications Inc.
2386 1258 521 907 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 534 106 185 BILISIM TELEKOM
6830 510 1787 315 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 460 132 355 Akamai Technologies European
8866 453 133 26 Bulgarian Telecommunication C
12479 453 593 7 France Telecom Espana SA
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 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 1559 287 163 Types of queries are: POCs, o
28573 1269 995 78 Types of queries are: POCs, o
8151 1253 2728 349 Uninet S.A. de C.V.
7303 980 513 163 Telecom Argentina S.A.
6503 741 354 74 Axtel, S.A.B. de C.V.
14420 700 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
14117 498 45 43 Telefonica del Sur 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
8452 804 445 11 TEDATA
24863 659 147 34 LINKdotNET AS number
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
36992 260 415 15 Etisalat MISR
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
15706 204 32 6 Sudatel Internet Exchange Aut
24835 164 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3616 3818 239 BellSouth.net Inc.
23456 2918 709 1570 32-bit ASN transition
4766 1916 11037 639 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
10620 1559 287 163 Types of queries are: POCs, o
17974 1554 508 32 PT Telekomunikasi Indonesia
7545 1553 301 83 TPG Internet Pty Ltd
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 1814 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1554 1522 PT Telekomunikasi Indonesia
7545 1553 1470 TPG Internet Pty Ltd
10620 1559 1396 Types of queries are: POCs, o
23456 2918 1348 32-bit ASN transition
4755 1501 1332 TATA Communications formerly
4766 1916 1277 Korea Telecom (KIX)
22773 1352 1263 Cox Communications Inc.
4323 1615 1213 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 /10:27 /11:80 /12:233
/13:465 /14:797 /15:1401 /16:12000 /17:5845 /18:9748
/19:19596 /20:26014 /21:26158 /22:34525 /23:33374 /24:187572
/25:12 /26:19 /27:23 /28:159 /29:107 /30:59
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2235 3616 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1454 1559 Types of queries are: POCs, o
23456 1444 2918 32-bit ASN transition
11492 1093 1139 CABLE ONE, INC.
7029 1071 1391 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1054 1814 PaeTec Communications, Inc.
6478 997 1025 AT&T Services, Inc.
22773 867 1352 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:333 2:43 4:16 5:1 6:3 8:337
12:1961 13:1 14:479 15:15 16:3 17:5
20:10 23:14 24:1675 27:830 31:493 32:59
33:4 34:2 36:4 38:725 40:104 41:2623
42:35 44:3 46:1051 47:3 49:200 50:383
52:13 54:2 55:4 56:2 57:33 58:817
59:476 60:383 61:1018 62:1025 63:1926 64:3964
65:2295 66:3867 67:1886 68:1099 69:3053 70:766
71:373 72:1868 74:2420 75:323 76:340 77:855
78:703 79:476 80:1109 81:840 82:502 83:468
84:691 85:1062 86:516 87:766 88:329 89:1535
90:223 91:3957 92:523 93:1054 94:1338 95:864
96:415 97:263 98:893 99:37 101:76 103:146
106:76 107:25 108:73 109:1018 110:602 111:710
112:298 113:406 114:557 115:664 116:961 117:659
118:818 119:1162 120:314 121:646 122:1594 123:957
124:1271 125:1226 128:208 129:163 130:164 131:576
132:104 133:21 134:206 135:52 136:213 137:136
138:300 139:113 140:459 141:253 142:387 143:412
144:474 145:54 146:448 147:212 148:602 149:247
150:154 151:189 152:335 153:182 154:4 155:399
156:195 157:319 158:140 159:387 160:313 161:195
162:307 163:157 164:506 165:363 166:530 167:431
168:739 169:151 170:834 171:81 172:1 173:1612
174:624 175:367 176:144 177:168 178:1011 180:897
181:23 182:495 183:233 184:341 185:1 186:1304
187:727 188:893 189:949 190:4983 192:5865 193:4973
194:3512 195:3009 196:1220 197:41 198:3525 199:3935
200:5495 201:1472 202:8181 203:8349 204:4148 205:2311
206:2580 207:2725 208:3984 209:3413 210:2588 211:1445
212:2035 213:1739 214:755 215:69 216:4925 217:1652
218:535 219:343 220:1195 221:481 222:311 223:227
End of report
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