The Cidr Report
cidr-report at potaroo.net
cidr-report at potaroo.net
Fri Mar 28 22:00:00 UTC 2014
This report has been generated at Fri Mar 28 21:13:59 2014 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/2.0 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
21-03-14 494294 278866
22-03-14 495055 279654
23-03-14 495459 279808
24-03-14 495254 277341
25-03-14 492381 277631
26-03-14 492485 277939
27-03-14 492416 277972
28-03-14 492834 278168
AS Summary
46632 Number of ASes in routing system
19077 Number of ASes announcing only one prefix
3626 Largest number of prefixes announced by an AS
AS28573:
119829504 Largest address span announced by an AS (/32s)
AS4134 :
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 28Mar14 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 493014 278159 214855 43.6% All ASes
AS6389 3008 56 2952 98.1%
AS28573 3626 797 2829 78.0%
AS17974 2777 160 2617 94.2%
AS4766 2972 905 2067 69.5%
AS18881 1917 35 1882 98.2%
AS1785 2194 370 1824 83.1%
AS18566 2048 565 1483 72.4%
AS36998 1637 175 1462 89.3%
AS4323 2943 1520 1423 48.4%
AS10620 2804 1478 1326 47.3%
AS7303 1750 456 1294 73.9%
AS4755 1843 615 1228 66.6%
AS7545 2233 1092 1141 51.1%
AS7552 1229 121 1108 90.2%
AS22561 1304 247 1057 81.1%
AS6983 1328 315 1013 76.3%
AS22773 2413 1449 964 40.0%
AS4808 1359 425 934 68.7%
AS9829 1621 716 905 55.8%
AS24560 1123 297 826 73.6%
AS18101 918 163 755 82.2%
AS7738 912 161 751 82.3%
AS8151 1405 654 751 53.5%
AS701 1484 755 729 49.1%
AS855 759 56 703 92.6%
AS4788 1000 306 694 69.4%
AS6147 784 113 671 85.6%
AS4780 1030 366 664 64.5%
AS9808 967 317 650 67.2%
AS8551 966 321 645 66.8%
Total 52354 15006 37348 71.3% Top 30 total
Possible Bogus Routes
27.100.7.0/24 AS56096
41.73.1.0/24 AS37004
41.73.2.0/24 AS37004
41.73.10.0/24 AS37004
41.73.11.0/24 AS37004
41.73.12.0/24 AS37004
41.73.13.0/24 AS37004
41.73.14.0/24 AS37004
41.73.15.0/24 AS37004
41.73.16.0/24 AS37004
41.73.18.0/24 AS37004
41.73.20.0/24 AS37004
41.73.21.0/24 AS37004
41.76.48.0/21 AS36969
41.78.120.0/23 AS22351
41.78.236.0/24 AS37290
41.78.237.0/24 AS37290
41.78.238.0/24 AS37290
41.78.239.0/24 AS37290
41.190.72.0/23 AS37451
41.190.74.0/23 AS37451
41.191.108.0/22 AS37004
41.191.108.0/24 AS37004
41.191.109.0/24 AS37004
41.191.110.0/24 AS37004
41.191.111.0/24 AS37004
41.217.208.0/22 AS37158
62.61.220.0/24 AS24974
62.61.221.0/24 AS24974
63.247.0.0/19 AS226
63.247.0.0/24 AS27609
63.247.1.0/24 AS27609
63.247.2.0/24 AS27609
63.247.3.0/24 AS27609
63.247.4.0/24 AS27609
63.247.5.0/24 AS27609
63.247.6.0/24 AS27609
63.247.7.0/24 AS27609
63.247.8.0/24 AS27609
63.247.9.0/24 AS27609
63.247.10.0/24 AS27609
63.247.11.0/24 AS27609
63.247.13.0/24 AS27609
63.247.14.0/24 AS27609
63.247.15.0/24 AS27609
63.247.16.0/24 AS27609
63.247.17.0/24 AS27609
63.247.18.0/24 AS27609
63.247.19.0/24 AS27609
63.247.20.0/24 AS27609
63.247.21.0/24 AS27609
63.247.22.0/24 AS27609
63.247.23.0/24 AS27609
63.247.24.0/24 AS27609
63.247.25.0/24 AS27609
63.247.26.0/24 AS27609
63.247.27.0/24 AS27609
63.247.28.0/24 AS27609
63.247.29.0/24 AS27609
64.25.16.0/23 AS19535
64.25.20.0/24 AS19535
64.25.21.0/24 AS19535
64.25.22.0/24 AS19535
64.25.27.0/24 AS7046
64.111.160.0/20 AS40551
64.111.160.0/24 AS40551
64.111.161.0/24 AS40551
64.111.162.0/24 AS40551
64.111.167.0/24 AS40551
64.111.169.0/24 AS40551
64.111.170.0/24 AS40551
64.111.171.0/24 AS40551
64.111.172.0/24 AS40551
64.111.173.0/24 AS40551
64.111.174.0/24 AS40551
64.111.175.0/24 AS40551
64.119.240.0/22 AS26072
64.119.240.0/23 AS26072
64.119.242.0/23 AS26072
64.185.224.0/24 AS27431
64.185.225.0/24 AS27431
64.185.226.0/24 AS27431
64.185.227.0/24 AS27431
64.185.228.0/24 AS27431
64.185.229.0/24 AS27431
64.185.230.0/24 AS27431
64.185.231.0/24 AS27431
64.185.232.0/24 AS27431
64.185.233.0/24 AS27431
64.185.234.0/24 AS27431
64.185.235.0/24 AS27431
64.185.236.0/24 AS27431
64.185.237.0/24 AS27431
64.185.238.0/24 AS27431
64.185.239.0/24 AS27431
64.202.48.0/22 AS23380
64.202.52.0/23 AS23380
64.202.54.0/24 AS23380
64.202.55.0/24 AS23380
64.202.56.0/22 AS23380
64.202.60.0/24 AS23380
64.202.61.0/24 AS23380
64.202.62.0/24 AS23380
64.202.63.0/24 AS23380
65.75.216.0/23 AS10494
65.75.217.0/24 AS10494
65.111.1.0/24 AS32258
66.55.96.0/23 AS17203
66.55.98.0/24 AS17203
66.55.99.0/24 AS17203
66.55.100.0/22 AS17203
66.55.102.0/23 AS17203
66.55.104.0/21 AS17203
66.180.64.0/21 AS32558
66.187.240.0/20 AS14552
66.205.224.0/19 AS16526
66.206.208.0/22 AS23380
66.206.211.0/24 AS14288
66.206.212.0/24 AS23380
66.206.213.0/24 AS14288
66.206.214.0/24 AS23380
66.206.215.0/24 AS23380
66.206.216.0/23 AS14288
66.206.218.0/23 AS23380
66.206.220.0/22 AS23380
66.251.128.0/24 AS33227
66.251.133.0/24 AS33227
66.251.134.0/24 AS33227
66.251.136.0/21 AS33227
66.251.140.0/24 AS33227
66.251.141.0/24 AS33227
66.251.142.0/24 AS33227
66.254.188.0/22 AS3356
67.21.144.0/22 AS174
67.21.148.0/22 AS174
71.19.134.0/23 AS3313
72.19.0.0/19 AS16526
74.112.100.0/22 AS16764
74.113.200.0/23 AS46939
74.114.52.0/22 AS40818
74.114.52.0/23 AS40818
74.114.52.0/24 AS40818
74.114.53.0/24 AS40818
74.114.54.0/23 AS40818
74.114.54.0/24 AS40818
74.114.55.0/24 AS40818
74.115.124.0/23 AS46540
74.118.132.0/22 AS5117
74.121.24.0/22 AS36263
77.243.80.0/24 AS42597
77.243.81.0/24 AS42597
77.243.88.0/24 AS42597
77.243.91.0/24 AS42597
77.243.94.0/24 AS42597
77.243.95.0/24 AS42597
80.250.32.0/22 AS37106
85.202.160.0/20 AS44404
91.193.60.0/22 AS3356
91.195.66.0/23 AS3356
91.197.36.0/22 AS43359
91.199.185.0/24 AS29076
91.209.115.0/24 AS31103
91.214.65.0/24 AS30822
91.229.182.0/24 AS56960
91.229.186.0/24 AS56967
91.239.157.0/24 AS24958
93.190.10.0/24 AS47254
95.215.140.0/22 AS48949
102.2.88.0/22 AS38456
103.23.36.0/22 AS17557
103.31.236.0/22 AS17941
103.244.236.0/22 AS58794
110.232.188.0/22 AS17557
116.206.72.0/24 AS6461
116.206.85.0/24 AS6461
116.206.103.0/24 AS6461
117.120.56.0/21 AS4755
121.46.0.0/16 AS4134
124.64.0.0/10 AS4847
163.47.23.0/24 AS2907
166.93.0.0/16 AS23537
172.85.0.0/24 AS29571
172.85.1.0/24 AS29571
172.85.2.0/24 AS29571
172.85.3.0/24 AS29571
172.86.0.0/24 AS29571
172.86.1.0/24 AS29571
172.86.2.0/24 AS29571
172.87.0.0/24 AS29571
172.88.0.0/24 AS29571
172.102.0.0/22 AS4812
172.116.0.0/24 AS7018
176.111.168.0/22 AS50586
190.3.160.0/21 AS27975
190.107.238.0/24 AS27765
190.124.252.0/22 AS7303
192.9.0.0/16 AS11479
192.25.10.0/24 AS5714
192.25.11.0/24 AS5714
192.25.13.0/24 AS5714
192.25.14.0/24 AS5714
192.75.23.0/24 AS2579
192.75.239.0/24 AS23498
192.84.24.0/24 AS4323
192.101.70.0/24 AS701
192.101.71.0/24 AS701
192.101.72.0/24 AS702
192.104.61.0/24 AS1785
192.124.252.0/22 AS680
192.131.233.0/24 AS7018
192.149.81.0/24 AS14454
192.154.32.0/19 AS81
192.154.64.0/19 AS81
192.166.32.0/20 AS702
192.188.208.0/20 AS721
192.241.20.0/24 AS7381
192.241.21.0/24 AS7381
192.252.252.0/24 AS7018
193.9.59.0/24 AS1257
193.16.145.0/24 AS31392
193.22.86.0/24 AS24751
193.22.224.0/20 AS3322
193.22.238.0/23 AS62383
193.26.213.0/24 AS31641
193.28.14.0/24 AS34309
193.33.6.0/23 AS3356
193.33.106.0/23 AS42444
193.33.252.0/23 AS3356
193.36.229.0/24 AS15404
193.46.200.0/24 AS34243
193.84.187.0/24 AS16276
193.109.217.0/24 AS13069
193.111.229.0/24 AS3356
193.142.249.0/24 AS12389
193.149.2.0/23 AS15919
193.164.152.0/24 AS3356
193.178.196.0/22 AS15657
193.186.193.0/24 AS158
193.186.199.0/24 AS8437
193.188.252.0/24 AS8697
193.200.244.0/24 AS3356
193.201.244.0/24 AS702
193.201.245.0/24 AS702
193.201.246.0/24 AS702
193.202.8.0/21 AS6824
193.202.9.0/24 AS6824
193.223.103.0/24 AS3248
193.227.109.0/24 AS3356
193.227.236.0/23 AS3356
193.243.166.0/24 AS44093
194.0.116.0/24 AS21437
194.0.117.0/24 AS21437
194.6.252.0/24 AS21202
194.9.8.0/23 AS2863
194.9.8.0/24 AS2863
194.59.46.0/24 AS9145
194.63.152.0/22 AS3356
194.79.36.0/22 AS3257
194.88.226.0/23 AS3356
194.99.67.0/24 AS9083
194.113.27.0/24 AS12518
194.126.152.0/23 AS3356
194.126.219.0/24 AS34545
194.126.233.0/24 AS31235
194.150.214.0/23 AS30880
194.156.179.0/24 AS3209
194.187.24.0/22 AS8856
194.213.8.0/24 AS42845
195.8.48.0/23 AS3356
195.8.48.0/24 AS3356
195.39.252.0/23 AS29004
195.42.232.0/22 AS15657
195.47.242.0/24 AS9050
195.69.100.0/24 AS29174
195.69.101.0/24 AS29174
195.69.102.0/24 AS29174
195.69.103.0/24 AS29174
195.85.194.0/24 AS3356
195.85.201.0/24 AS3356
195.90.98.0/23 AS57511
195.110.0.0/23 AS3356
195.128.240.0/23 AS21202
195.149.119.0/24 AS3356
195.189.174.0/23 AS3356
195.216.234.0/24 AS31309
195.234.156.0/24 AS25028
195.242.182.0/24 AS3356
195.244.18.0/23 AS3356
196.2.224.0/22 AS24863
196.3.182.0/24 AS37004
196.3.183.0/24 AS37004
196.13.201.0/24 AS2018
196.13.202.0/24 AS2018
196.13.203.0/24 AS2018
196.13.204.0/24 AS2018
196.22.8.0/24 AS27822
196.22.11.0/24 AS16422
196.45.0.0/21 AS26625
196.45.10.0/24 AS26625
196.216.129.0/24 AS36886
196.216.130.0/24 AS36886
196.216.131.0/24 AS36886
198.23.26.0/24 AS4390
198.72.78.0/23 AS3967
198.74.11.0/24 AS14573
198.74.13.0/24 AS14573
198.74.38.0/24 AS16966
198.74.39.0/24 AS16966
198.74.40.0/24 AS16966
198.97.72.0/21 AS721
198.97.96.0/19 AS721
198.97.192.0/20 AS721
198.97.240.0/20 AS721
198.161.239.0/24 AS852
198.163.214.0/24 AS21804
198.163.215.0/24 AS6327
198.163.216.0/24 AS6327
198.168.0.0/16 AS701
198.176.208.0/24 AS4318
198.176.209.0/24 AS4318
198.176.210.0/24 AS4318
198.176.211.0/24 AS4318
198.180.198.0/24 AS23715
198.252.165.0/24 AS20115
198.252.166.0/24 AS20115
198.252.167.0/24 AS20115
198.252.168.0/24 AS20115
198.252.169.0/24 AS20115
199.30.138.0/24 AS23319
199.30.139.0/24 AS23319
199.30.143.0/24 AS8100
199.68.72.0/24 AS174
199.85.9.0/24 AS852
199.88.52.0/22 AS17018
199.91.240.0/21 AS174
199.116.200.0/21 AS22830
199.120.150.0/24 AS30036
199.121.0.0/16 AS721
199.123.16.0/20 AS721
199.188.28.0/22 AS46802
200.1.112.0/24 AS29754
200.58.248.0/21 AS27849
202.8.106.0/24 AS9530
202.53.138.0/24 AS4058
202.58.113.0/24 AS19161
202.94.1.0/24 AS4808
202.158.251.0/24 AS9255
202.174.125.0/24 AS9498
203.0.0.0/16 AS7545
203.83.16.0/21 AS17828
203.142.219.0/24 AS45149
203.191.56.0/21 AS38042
204.10.88.0/21 AS3356
204.10.94.0/23 AS30097
204.15.208.0/22 AS13706
204.16.96.0/24 AS19972
204.16.97.0/24 AS19972
204.16.98.0/24 AS19972
204.16.99.0/24 AS19972
204.69.144.0/24 AS27283
204.106.16.0/24 AS4323
204.187.11.0/24 AS51113
204.225.173.0/24 AS6407
205.159.44.0/24 AS40157
205.207.66.0/24 AS15290
205.211.160.0/24 AS30045
206.81.112.0/20 AS32618
206.197.184.0/24 AS23304
206.221.176.0/24 AS27431
206.221.177.0/24 AS27431
206.221.178.0/24 AS27431
206.221.179.0/24 AS27431
206.221.180.0/24 AS27431
206.221.181.0/24 AS27431
206.221.182.0/24 AS27431
206.221.183.0/24 AS27431
206.221.184.0/24 AS27431
206.221.185.0/24 AS27431
206.221.186.0/24 AS27431
206.221.187.0/24 AS27431
206.221.188.0/24 AS27431
206.221.189.0/24 AS27431
206.221.190.0/24 AS27431
206.221.191.0/24 AS27431
207.2.120.0/21 AS6221
207.174.131.0/24 AS26116
207.174.132.0/23 AS26116
207.174.152.0/23 AS26116
207.174.154.0/24 AS26116
207.174.155.0/24 AS26116
207.174.200.0/24 AS22658
207.231.96.0/19 AS11194
207.254.128.0/21 AS30689
207.254.128.0/24 AS30689
207.254.136.0/21 AS30689
208.67.132.0/22 AS701
208.68.180.0/22 AS4323
208.69.192.0/23 AS6461
208.69.195.0/24 AS6461
208.74.224.0/22 AS174
208.75.152.0/21 AS32146
208.76.20.0/24 AS31812
208.76.21.0/24 AS31812
208.77.164.0/24 AS22659
208.77.166.0/24 AS4323
208.83.53.0/24 AS40569
208.84.232.0/24 AS33131
208.84.234.0/24 AS33131
208.84.237.0/24 AS33131
208.84.238.0/24 AS33131
208.85.116.0/23 AS25956
208.85.212.0/22 AS32618
208.89.32.0/24 AS27431
208.89.33.0/24 AS27431
208.89.34.0/24 AS27431
208.89.35.0/24 AS27431
208.91.164.0/22 AS46099
209.177.64.0/20 AS6461
209.193.112.0/20 AS209
209.209.51.0/24 AS18687
209.212.63.0/24 AS16467
209.234.112.0/23 AS32252
209.234.114.0/23 AS32252
209.234.116.0/24 AS32252
209.234.117.0/24 AS32252
209.234.118.0/24 AS32252
209.234.119.0/24 AS32252
209.234.120.0/24 AS32252
209.234.121.0/24 AS32252
209.234.122.0/24 AS32252
212.119.32.0/19 AS12550
213.184.64.0/24 AS13071
213.184.65.0/24 AS13071
213.184.66.0/24 AS13071
213.184.67.0/24 AS13071
213.184.68.0/24 AS13071
213.184.69.0/24 AS13071
213.184.70.0/24 AS13071
213.184.71.0/24 AS13071
213.184.72.0/24 AS13071
213.184.73.0/24 AS13071
213.184.74.0/24 AS13071
213.184.75.0/24 AS13071
213.184.76.0/24 AS13071
213.184.77.0/24 AS13071
213.184.78.0/24 AS13071
216.12.163.0/24 AS26627
216.14.64.0/20 AS14728
216.146.0.0/19 AS11915
216.152.24.0/22 AS22773
216.170.96.0/24 AS4565
216.170.101.0/24 AS4565
216.170.104.0/24 AS4565
216.170.105.0/24 AS4565
216.203.80.0/20 AS27021
216.203.80.0/21 AS27021
216.203.87.0/24 AS27021
216.203.88.0/21 AS27021
216.203.95.0/24 AS53490
216.234.132.0/24 AS14545
Please see http://www.cidr-report.org for the full report
------------------------------------
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nanog at nanog.org
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routing-wg at ripe.net
afnog at afnog.org
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