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 ------------------------------------ Copies of this report are mailed to: na...@nanog.org 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