[routing-wg] The Cidr Report

28 Mar 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

------------------------------------
Copies of this report are mailed to:
  nanog@nanog.org
  eof-list@ripe.net
  apops@apops.net
  routing-wg@ripe.net
  afnog@afnog.org

[routing-wg] The Cidr Report

cidr-report＠potaroo.net