Routing Table Report 08:00 +10GMT Wed 27 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358981
Prefixes after maximum aggregation: 163722
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 181070
Total ASes present in the Internet Routing Table: 36854
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31784
Origin ASes announcing only one prefix: 15317
Transit ASes present in the Internet Routing Table: 5070
Transit-only ASes present in the Internet Routing Table: 129
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: 2354
Unregistered ASNs in the Routing Table: 642
Number of 32-bit ASNs allocated by the RIRs: 1592
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2934
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2503916800
Equivalent to 149 /8s, 62 /16s and 189 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 148182
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86644
Total APNIC prefixes after maximum aggregation: 29059
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84131
Unique aggregates announced from the APNIC address blocks: 37568
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 671
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: 621852672
Equivalent to 37 /8s, 16 /16s and 184 /24s
Percentage of available APNIC address space announced: 78.9
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: 72583
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112603
Unique aggregates announced from the ARIN address blocks: 46667
ARIN Region origin ASes present in the Internet Routing Table: 14445
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5555
ARIN Region transit ASes present in the Internet Routing Table: 1462
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: 803079936
Equivalent to 47 /8s, 222 /16s and 7 /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: 86970
Total RIPE prefixes after maximum aggregation: 49330
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80314
Unique aggregates announced from the RIPE address blocks: 52929
RIPE Region origin ASes present in the Internet Routing Table: 15812
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7902
RIPE Region transit ASes present in the Internet Routing Table: 2495
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: 484269824
Equivalent to 28 /8s, 221 /16s and 95 /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: 33157
Total LACNIC prefixes after maximum aggregation: 7550
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32531
Unique aggregates announced from the LACNIC address blocks: 17208
LACNIC Region origin ASes present in the Internet Routing Table: 1479
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 86917120
Equivalent to 5 /8s, 46 /16s and 64 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8147
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6435
Unique aggregates announced from the AfriNIC address blocks: 2044
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 99
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: 25755136
Equivalent to 1 /8s, 136 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 38.4
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 1923 11037 642 Korea Telecom (KIX)
17974 1556 508 32 PT Telekomunikasi Indonesia
7545 1554 301 84 TPG Internet Pty Ltd
4755 1496 635 168 TATA Communications formerly
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1119 936 41 National Internet Backbone
9583 1076 80 511 Sify Limited
17488 966 189 109 Hathway IP Over Cable Interne
4808 947 2003 274 CNCGROUP IP network China169
18101 934 116 139 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 3615 3818 240 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
4323 1616 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
19262 1411 4760 391 Verizon Online LLC
7029 1392 1031 209 Windstream Communications Inc
7018 1373 7101 900 AT&T Services, Inc.
22773 1353 2897 88 Cox Communications Inc.
2386 1257 520 906 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 532 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 464 134 358 Akamai Technologies European
12479 458 593 7 France Telecom Espana SA
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 424 8151 370 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 1558 287 164 Types of queries are: POCs, o
28573 1269 995 78 Types of queries are: POCs, o
8151 1252 2728 350 Uninet S.A. de C.V.
7303 1012 545 163 Telecom Argentina S.A.
6503 743 450 76 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 793 445 11 TEDATA
24863 784 147 34 LINKdotNET AS number
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 256 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 204 32 6 Sudatel Internet Exchange Aut
24835 177 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 3615 3818 240 BellSouth.net Inc.
23456 2934 704 1572 32-bit ASN transition
4766 1923 11037 642 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
4323 1616 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
10620 1558 287 164 Types of queries are: POCs, o
17974 1556 508 32 PT Telekomunikasi Indonesia
7545 1554 301 84 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 1813 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1556 1524 PT Telekomunikasi Indonesia
7545 1554 1470 TPG Internet Pty Ltd
10620 1558 1394 Types of queries are: POCs, o
23456 2934 1362 32-bit ASN transition
4755 1496 1328 TATA Communications formerly
4766 1923 1281 Korea Telecom (KIX)
22773 1353 1265 Cox Communications Inc.
4323 1616 1214 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 /14:798 /15:1404 /16:12026 /17:5863 /18:9762
/19:19602 /20:26162 /21:26210 /22:34623 /23:33455 /24:187727
/25:12 /26:19 /27:23 /28:159 /29:110 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2236 3615 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1453 1558 Types of queries are: POCs, o
23456 1450 2934 32-bit ASN transition
11492 1093 1139 CABLE ONE, INC.
7029 1072 1392 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1053 1813 PaeTec Communications, Inc.
6478 962 989 AT&T Services, Inc.
22773 867 1353 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:337 2:46 4:16 5:1 6:3 8:337
12:1959 13:1 14:480 15:15 16:3 17:5
20:10 23:15 24:1656 27:834 31:493 32:59
33:4 34:2 36:4 38:725 40:104 41:2581
42:35 44:3 46:1048 47:3 49:200 50:367
52:13 54:2 55:4 56:2 57:33 58:819
59:476 60:383 61:1021 62:1032 63:1924 64:3969
65:2298 66:3884 67:1884 68:1105 69:3047 70:768
71:373 72:1868 74:2420 75:318 76:341 77:860
78:703 79:476 80:1113 81:839 82:504 83:469
84:690 85:1066 86:518 87:766 88:336 89:1540
90:224 91:3956 92:526 93:1063 94:1342 95:870
96:415 97:263 98:889 99:37 101:76 103:160
106:77 107:25 108:73 109:1028 110:608 111:714
112:298 113:402 114:558 115:664 116:963 117:658
118:826 119:1160 120:314 121:648 122:1598 123:959
124:1275 125:1226 128:208 129:163 130:164 131:575
132:105 133:21 134:206 135:52 136:213 137:136
138:300 139:113 140:458 141:254 142:387 143:417
144:474 145:55 146:448 147:215 148:602 149:248
150:154 151:189 152:338 153:182 154:4 155:399
156:195 157:324 158:140 159:387 160:313 161:195
162:307 163:157 164:506 165:365 166:531 167:431
168:740 169:151 170:832 171:81 172:1 173:1609
174:619 175:366 176:144 177:178 178:996 180:892
181:23 182:499 183:234 184:343 185:1 186:1305
187:746 188:893 189:954 190:4994 192:5865 193:4976
194:3508 195:3019 196:1211 197:42 198:3531 199:3937
200:5492 201:1468 202:8190 203:8363 204:4160 205:2315
206:2581 207:2730 208:3982 209:3411 210:2593 211:1446
212:2037 213:1740 214:779 215:69 216:4921 217:1631
218:537 219:343 220:1196 221:481 222:310 223:226
End of report
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