fetus

🇨🇿チェコCzech Republic


割り振り一覧

チェコに割り振りされたIPアドレスの一覧です。

大体のケースでは「Merged CIDR」の表示の方が便利です。

データをアクセス制御に使いたい方は「ダウンロード」をご利用ください。

チェコには9,558,400個のIPアドレスが割り振られています。これは全アドレス空間の0.22255%、予約領域を除くと0.25818%です。


401-600 of 1754 rows
CIDRIPアドレス割り振り日レジストリ
82.208.57.0/2482.208.57.0 - 82.208.57.2552003/09/16RIPE NCC
82.208.58.0/2482.208.58.0 - 82.208.58.2552003/09/16RIPE NCC
82.208.59.0/2482.208.59.0 - 82.208.59.2552003/09/16RIPE NCC
82.208.60.0/2282.208.60.0 - 82.208.63.2552003/09/16RIPE NCC
82.209.0.0/1882.209.0.0 - 82.209.63.2552003/09/29RIPE NCC
83.69.32.0/1983.69.32.0 - 83.69.63.2552004/05/25RIPE NCC
83.136.200.0/2183.136.200.0 - 83.136.207.2552004/04/02RIPE NCC
83.148.0.0/1883.148.0.0 - 83.148.63.2552004/02/24RIPE NCC
83.167.224.0/1983.167.224.0 - 83.167.255.2552008/08/21RIPE NCC
83.208.0.0/1683.208.0.0 - 83.208.255.2552004/03/02RIPE NCC
83.240.0.0/1783.240.0.0 - 83.240.127.2552004/03/11RIPE NCC
84.16.96.0/1984.16.96.0 - 84.16.127.2552004/07/14RIPE NCC
84.19.64.0/1984.19.64.0 - 84.19.95.2552004/08/19RIPE NCC
84.21.96.0/1984.21.96.0 - 84.21.127.2552004/09/13RIPE NCC
84.42.128.0/1784.42.128.0 - 84.42.255.2552004/09/14RIPE NCC
84.242.64.0/1884.242.64.0 - 84.242.127.2552004/06/28RIPE NCC
84.244.64.0/1884.244.64.0 - 84.244.127.2552004/07/21RIPE NCC
84.246.160.0/2184.246.160.0 - 84.246.167.2552009/10/07RIPE NCC
85.13.64.0/1885.13.64.0 - 85.13.127.2552005/03/29RIPE NCC
85.70.0.0/1585.70.0.0 - 85.71.255.2552004/11/02RIPE NCC
85.92.32.0/1985.92.32.0 - 85.92.63.2552004/12/02RIPE NCC
85.92.96.0/2285.92.96.0 - 85.92.99.2552018/10/08RIPE NCC
85.93.96.0/1985.93.96.0 - 85.93.127.2552004/12/09RIPE NCC
85.93.160.0/1985.93.160.0 - 85.93.191.2552004/12/13RIPE NCC
85.118.128.0/2185.118.128.0 - 85.118.135.2552012/03/12RIPE NCC
85.119.88.0/2185.119.88.0 - 85.119.95.2552005/06/02RIPE NCC
85.132.128.0/2185.132.128.0 - 85.132.135.2552004/12/07RIPE NCC
85.132.136.0/2285.132.136.0 - 85.132.139.2552004/12/07RIPE NCC
85.132.140.0/2285.132.140.0 - 85.132.143.2552004/12/07RIPE NCC
85.132.144.0/2085.132.144.0 - 85.132.159.2552004/12/07RIPE NCC
85.132.160.0/2085.132.160.0 - 85.132.175.2552004/12/07RIPE NCC
85.132.176.0/2185.132.176.0 - 85.132.183.2552004/12/07RIPE NCC
85.132.184.0/2285.132.184.0 - 85.132.187.2552004/12/07RIPE NCC
85.132.188.0/2285.132.188.0 - 85.132.191.2552004/12/07RIPE NCC
85.135.0.0/1785.135.0.0 - 85.135.127.2552004/12/16RIPE NCC
85.158.184.0/2385.158.184.0 - 85.158.185.2552009/04/15RIPE NCC
85.158.186.0/2485.158.186.0 - 85.158.186.2552009/04/15RIPE NCC
85.158.187.0/2485.158.187.0 - 85.158.187.2552009/04/15RIPE NCC
85.158.188.0/2285.158.188.0 - 85.158.191.2552009/04/15RIPE NCC
85.160.0.0/1585.160.0.0 - 85.161.255.2552004/10/25RIPE NCC
85.162.0.0/1585.162.0.0 - 85.163.255.2552004/10/25RIPE NCC
85.184.16.0/2085.184.16.0 - 85.184.31.2552004/11/19RIPE NCC
85.193.0.0/1885.193.0.0 - 85.193.63.2552004/12/16RIPE NCC
85.207.0.0/1685.207.0.0 - 85.207.255.2552005/01/17RIPE NCC
85.209.28.0/2285.209.28.0 - 85.209.31.2552019/02/25RIPE NCC
85.209.124.0/2285.209.124.0 - 85.209.127.2552019/02/27RIPE NCC
85.239.64.0/1985.239.64.0 - 85.239.95.2552005/06/16RIPE NCC
85.239.224.0/2385.239.224.0 - 85.239.225.2552005/06/23RIPE NCC
85.239.226.0/2485.239.226.0 - 85.239.226.2552005/06/23RIPE NCC
85.239.227.0/2485.239.227.0 - 85.239.227.2552005/06/23RIPE NCC
85.239.228.0/2385.239.228.0 - 85.239.229.2552005/06/23RIPE NCC
85.239.251.0/2485.239.251.0 - 85.239.251.2552005/06/23RIPE NCC
85.239.252.0/2385.239.252.0 - 85.239.253.2552005/06/23RIPE NCC
85.239.254.0/2385.239.254.0 - 85.239.255.2552005/06/23RIPE NCC
85.255.88.0/2285.255.88.0 - 85.255.91.2552018/08/22RIPE NCC
86.49.0.0/1686.49.0.0 - 86.49.255.2552005/04/21RIPE NCC
86.61.128.0/1786.61.128.0 - 86.61.255.2552005/05/20RIPE NCC
86.63.192.0/1986.63.192.0 - 86.63.223.2552005/06/29RIPE NCC
86.111.213.0/2486.111.213.0 - 86.111.213.2552020/05/07RIPE NCC
87.236.192.0/2187.236.192.0 - 87.236.199.2552005/09/12RIPE NCC
87.249.140.0/2287.249.140.0 - 87.249.143.2552005/08/30RIPE NCC
87.249.144.0/2087.249.144.0 - 87.249.159.2552005/08/30RIPE NCC
88.81.64.0/1988.81.64.0 - 88.81.95.2552005/12/02RIPE NCC
88.83.160.0/1988.83.160.0 - 88.83.191.2552006/01/09RIPE NCC
88.83.224.0/1988.83.224.0 - 88.83.255.2552006/01/11RIPE NCC
88.86.96.0/1988.86.96.0 - 88.86.127.2552006/02/14RIPE NCC
88.100.0.0/1488.100.0.0 - 88.103.255.2552005/10/04RIPE NCC
88.146.0.0/1788.146.0.0 - 88.146.127.2552005/12/20RIPE NCC
88.146.128.0/1788.146.128.0 - 88.146.255.2552005/12/23RIPE NCC
88.151.9.0/2488.151.9.0 - 88.151.9.2552021/08/19RIPE NCC
88.208.64.0/1888.208.64.0 - 88.208.127.2552005/10/28RIPE NCC
89.22.48.0/2489.22.48.0 - 89.22.48.2552012/09/12RIPE NCC
89.22.64.0/1989.22.64.0 - 89.22.95.2552011/07/11RIPE NCC
89.23.125.0/2489.23.125.0 - 89.23.125.2552023/10/31RIPE NCC
89.24.0.0/1789.24.0.0 - 89.24.127.2552006/05/11RIPE NCC
89.24.128.0/1789.24.128.0 - 89.24.255.2552007/05/04RIPE NCC
89.29.0.0/1789.29.0.0 - 89.29.127.2552006/07/19RIPE NCC
89.31.8.0/2189.31.8.0 - 89.31.15.2552006/08/15RIPE NCC
89.31.40.0/2189.31.40.0 - 89.31.47.2552006/08/23RIPE NCC
89.31.160.0/2189.31.160.0 - 89.31.167.2552006/09/18RIPE NCC
89.102.0.0/1589.102.0.0 - 89.103.255.2552006/02/24RIPE NCC
89.107.128.0/2189.107.128.0 - 89.107.135.2552006/04/28RIPE NCC
89.111.64.0/1889.111.64.0 - 89.111.127.2552006/04/25RIPE NCC
89.150.53.0/2489.150.53.0 - 89.150.53.2552010/03/10RIPE NCC
89.150.54.0/2489.150.54.0 - 89.150.54.2552010/03/10RIPE NCC
89.176.0.0/1589.176.0.0 - 89.177.255.2552006/03/16RIPE NCC
89.185.224.0/1989.185.224.0 - 89.185.255.2552006/04/12RIPE NCC
89.187.128.0/1989.187.128.0 - 89.187.159.2552006/04/28RIPE NCC
89.187.160.0/1989.187.160.0 - 89.187.191.2552006/04/28RIPE NCC
89.187.192.0/2289.187.192.0 - 89.187.195.2552011/08/31RIPE NCC
89.187.196.0/2389.187.196.0 - 89.187.197.2552011/08/31RIPE NCC
89.187.198.0/2389.187.198.0 - 89.187.199.2552011/08/31RIPE NCC
89.190.32.0/2189.190.32.0 - 89.190.39.2552006/06/06RIPE NCC
89.190.40.0/2189.190.40.0 - 89.190.47.2552006/06/06RIPE NCC
89.190.48.0/2089.190.48.0 - 89.190.63.2552006/06/06RIPE NCC
89.190.64.0/1989.190.64.0 - 89.190.95.2552006/06/06RIPE NCC
89.190.128.0/2289.190.128.0 - 89.190.131.2552018/10/10RIPE NCC
89.203.128.0/1789.203.128.0 - 89.203.255.2552006/04/27RIPE NCC
89.221.208.0/2089.221.208.0 - 89.221.223.2552006/10/11RIPE NCC
89.233.128.0/1889.233.128.0 - 89.233.191.2552006/05/10RIPE NCC
89.235.0.0/1889.235.0.0 - 89.235.63.2552006/05/30RIPE NCC
89.239.0.0/1989.239.0.0 - 89.239.31.2552006/06/09RIPE NCC
89.248.240.0/2089.248.240.0 - 89.248.255.2552006/07/14RIPE NCC
89.250.96.0/2189.250.96.0 - 89.250.103.2552006/08/09RIPE NCC
89.250.104.0/2189.250.104.0 - 89.250.111.2552006/08/09RIPE NCC
89.250.240.0/2089.250.240.0 - 89.250.255.2552006/08/23RIPE NCC
90.176.32.0/1990.176.32.0 - 90.176.63.2552006/09/17RIPE NCC
90.176.64.0/1890.176.64.0 - 90.176.127.2552006/09/17RIPE NCC
90.176.128.0/1790.176.128.0 - 90.176.255.2552006/09/17RIPE NCC
90.177.0.0/1690.177.0.0 - 90.177.255.2552006/09/17RIPE NCC
90.178.0.0/1590.178.0.0 - 90.179.255.2552006/09/17RIPE NCC
90.180.0.0/1490.180.0.0 - 90.183.255.2552006/09/17RIPE NCC
91.103.160.0/2191.103.160.0 - 91.103.167.2552006/11/30RIPE NCC
91.106.240.0/2091.106.240.0 - 91.106.255.2552012/06/25RIPE NCC
91.108.185.0/2491.108.185.0 - 91.108.185.2552024/01/12RIPE NCC
91.109.32.0/2191.109.32.0 - 91.109.39.2552012/06/18RIPE NCC
91.132.204.0/2291.132.204.0 - 91.132.207.2552018/12/20RIPE NCC
91.132.232.0/2291.132.232.0 - 91.132.235.2552018/12/21RIPE NCC
91.139.0.0/1791.139.0.0 - 91.139.127.2552007/05/22RIPE NCC
91.146.120.0/2191.146.120.0 - 91.146.127.2552011/09/08RIPE NCC
91.187.32.0/1991.187.32.0 - 91.187.63.2552006/11/16RIPE NCC
91.192.32.0/2291.192.32.0 - 91.192.35.2552011/08/04RIPE NCC
91.193.132.0/2291.193.132.0 - 91.193.135.2552007/04/13RIPE NCC
91.195.106.0/2391.195.106.0 - 91.195.107.2552007/09/10RIPE NCC
91.195.202.0/2391.195.202.0 - 91.195.203.2552007/10/11RIPE NCC
91.196.40.0/2291.196.40.0 - 91.196.43.2552018/04/18RIPE NCC
91.197.112.0/2291.197.112.0 - 91.197.115.2552007/08/16RIPE NCC
91.197.116.0/2291.197.116.0 - 91.197.119.2552007/08/16RIPE NCC
91.199.164.0/2491.199.164.0 - 91.199.164.2552008/02/06RIPE NCC
91.199.207.0/2491.199.207.0 - 91.199.207.2552008/02/21RIPE NCC
91.201.20.0/2291.201.20.0 - 91.201.23.2552008/01/23RIPE NCC
91.201.32.0/2291.201.32.0 - 91.201.35.2552018/04/19RIPE NCC
91.201.92.0/2291.201.92.0 - 91.201.95.2552007/11/28RIPE NCC
91.202.52.0/2291.202.52.0 - 91.202.55.2552011/08/05RIPE NCC
91.204.83.0/2491.204.83.0 - 91.204.83.2552008/06/04RIPE NCC
91.205.40.0/2491.205.40.0 - 91.205.40.2552020/01/09RIPE NCC
91.205.92.0/2291.205.92.0 - 91.205.95.2552018/04/20RIPE NCC
91.205.195.0/2491.205.195.0 - 91.205.195.2552012/09/03RIPE NCC
91.206.91.0/2491.206.91.0 - 91.206.91.2552011/10/24RIPE NCC
91.207.188.0/2391.207.188.0 - 91.207.189.2552008/11/03RIPE NCC
91.207.230.0/2391.207.230.0 - 91.207.231.2552019/10/03RIPE NCC
91.207.234.0/2391.207.234.0 - 91.207.235.2552019/10/03RIPE NCC
91.208.112.0/2491.208.112.0 - 91.208.112.2552022/09/26RIPE NCC
91.209.101.0/2491.209.101.0 - 91.209.101.2552008/11/10RIPE NCC
91.210.16.0/2291.210.16.0 - 91.210.19.2552008/10/08RIPE NCC
91.213.10.0/2491.213.10.0 - 91.213.10.2552009/06/15RIPE NCC
91.213.122.0/2491.213.122.0 - 91.213.122.2552009/08/04RIPE NCC
91.213.143.0/2491.213.143.0 - 91.213.143.2552009/08/10RIPE NCC
91.213.160.0/2491.213.160.0 - 91.213.160.2552009/08/17RIPE NCC
91.214.156.0/2291.214.156.0 - 91.214.159.2552009/06/09RIPE NCC
91.214.192.0/2291.214.192.0 - 91.214.195.2552009/06/22RIPE NCC
91.215.12.0/2291.215.12.0 - 91.215.15.2552009/07/03RIPE NCC
91.216.168.0/2491.216.168.0 - 91.216.168.2552010/06/07RIPE NCC
91.216.179.0/2491.216.179.0 - 91.216.179.2552010/06/10RIPE NCC
91.217.52.0/2391.217.52.0 - 91.217.53.2552010/08/27RIPE NCC
91.217.96.0/2391.217.96.0 - 91.217.97.2552010/09/14RIPE NCC
91.218.188.0/2291.218.188.0 - 91.218.191.2552010/08/04RIPE NCC
91.218.232.0/2291.218.232.0 - 91.218.235.2552010/08/18RIPE NCC
91.219.44.0/2291.219.44.0 - 91.219.47.2552010/09/15RIPE NCC
91.219.240.0/2291.219.240.0 - 91.219.243.2552010/10/27RIPE NCC
91.219.244.0/2291.219.244.0 - 91.219.247.2552010/10/27RIPE NCC
91.220.122.0/2491.220.122.0 - 91.220.122.2552010/11/09RIPE NCC
91.220.201.0/2491.220.201.0 - 91.220.201.2552012/04/23RIPE NCC
91.221.2.0/2391.221.2.0 - 91.221.3.2552010/10/12RIPE NCC
91.221.46.0/2391.221.46.0 - 91.221.47.2552010/10/25RIPE NCC
91.221.148.0/2391.221.148.0 - 91.221.149.2552010/12/02RIPE NCC
91.221.212.0/2391.221.212.0 - 91.221.213.2552010/12/21RIPE NCC
91.222.52.0/2291.222.52.0 - 91.222.55.2552010/11/30RIPE NCC
91.223.74.0/2491.223.74.0 - 91.223.74.2552011/02/02RIPE NCC
91.224.48.0/2391.224.48.0 - 91.224.49.2552011/01/31RIPE NCC
91.224.58.0/2391.224.58.0 - 91.224.59.2552011/02/02RIPE NCC
91.224.64.0/2391.224.64.0 - 91.224.65.2552019/10/03RIPE NCC
91.224.90.0/2391.224.90.0 - 91.224.91.2552011/02/07RIPE NCC
91.224.100.0/2391.224.100.0 - 91.224.101.2552019/10/03RIPE NCC
91.225.84.0/2291.225.84.0 - 91.225.87.2552011/02/03RIPE NCC
91.225.128.0/2291.225.128.0 - 91.225.131.2552011/02/09RIPE NCC
91.226.124.0/2291.226.124.0 - 91.226.127.2552011/04/20RIPE NCC
91.226.216.0/2291.226.216.0 - 91.226.219.2552011/04/28RIPE NCC
91.227.7.0/2491.227.7.0 - 91.227.7.2552011/05/02RIPE NCC
91.227.96.0/2391.227.96.0 - 91.227.97.2552011/05/10RIPE NCC
91.227.134.0/2391.227.134.0 - 91.227.135.2552011/05/12RIPE NCC
91.227.232.0/2291.227.232.0 - 91.227.235.2552011/05/18RIPE NCC
91.228.44.0/2291.228.44.0 - 91.228.47.2552011/05/23RIPE NCC
91.228.100.0/2491.228.100.0 - 91.228.100.2552011/05/26RIPE NCC
91.228.187.0/2491.228.187.0 - 91.228.187.2552023/05/30RIPE NCC
91.228.200.0/2291.228.200.0 - 91.228.203.2552011/06/07RIPE NCC
91.229.252.0/2291.229.252.0 - 91.229.255.2552011/06/29RIPE NCC
91.230.94.0/2391.230.94.0 - 91.230.95.2552011/07/11RIPE NCC
91.230.144.0/2491.230.144.0 - 91.230.144.2552011/07/13RIPE NCC
91.230.247.0/2491.230.247.0 - 91.230.247.2552011/07/28RIPE NCC
91.231.28.0/2291.231.28.0 - 91.231.31.2552011/08/02RIPE NCC
91.231.171.0/2491.231.171.0 - 91.231.171.2552011/09/29RIPE NCC
91.231.188.0/2291.231.188.0 - 91.231.191.2552011/10/03RIPE NCC
91.232.82.0/2491.232.82.0 - 91.232.82.2552011/11/03RIPE NCC
91.232.84.0/2291.232.84.0 - 91.232.87.2552011/11/03RIPE NCC
91.232.212.0/2291.232.212.0 - 91.232.215.2552011/11/23RIPE NCC
91.232.247.0/2491.232.247.0 - 91.232.247.2552011/11/25RIPE NCC
91.233.208.0/2291.233.208.0 - 91.233.211.2552011/12/16RIPE NCC
91.234.162.0/2391.234.162.0 - 91.234.163.2552012/01/25RIPE NCC
91.234.248.0/2291.234.248.0 - 91.234.251.2552012/01/31RIPE NCC
Merged CIDR

連続した割り振りブロックを統合したリストです。

201-400 of 1538 rows
CIDR
62.240.160.0/19
62.245.64.0/18
69.94.64.0/20
77.48.0.0/16
77.75.72.0/21
77.78.64.0/22
77.78.68.0/23
77.78.74.0/23
77.78.76.0/22
77.78.80.0/20
77.78.96.0/20
77.78.112.0/21
77.78.122.0/23
77.78.124.0/22
77.87.232.0/21
77.87.240.0/21
77.92.192.0/19
77.93.192.0/19
77.95.40.0/21
77.95.192.0/21
77.104.192.0/18
77.223.216.0/21
77.234.40.0/21
77.236.192.0/19
77.237.128.0/19
77.240.96.0/20
77.240.176.0/20
77.242.80.0/20
78.24.8.0/21
78.24.96.0/22
78.24.232.0/21
78.31.24.0/21
78.41.8.0/21
78.41.16.0/21
78.44.0.0/15
78.80.0.0/16
78.102.0.0/16
78.108.96.0/20
78.108.144.0/20
78.110.208.0/20
78.111.112.0/20
78.128.128.0/17
78.136.128.0/18
78.138.62.0/24
78.156.32.0/19
78.156.128.0/19
78.157.128.0/18
79.98.72.0/21
79.98.152.0/21
79.110.32.0/20
79.110.225.0/24
79.127.128.0/18
79.133.178.0/23
79.141.240.0/20
79.142.144.0/20
79.170.248.0/21
79.171.184.0/21
80.65.176.0/20
80.74.32.0/20
80.78.136.0/22
80.78.144.0/20
80.79.0.0/22
80.79.16.0/20
80.82.144.0/20
80.82.192.0/21
80.83.64.0/20
80.87.176.0/20
80.90.128.0/20
80.91.220.0/24
80.92.240.0/20
80.95.96.0/19
80.95.240.0/20
80.188.0.0/16
80.243.96.0/20
80.243.236.0/22
80.249.133.0/24
80.250.0.0/19
80.251.240.0/20
80.254.232.0/21
81.0.192.0/20
81.0.208.0/21
81.0.216.0/23
81.0.222.0/23
81.0.224.0/20
81.0.240.0/22
81.0.244.0/23
81.0.250.0/23
81.0.252.0/22
81.2.192.0/18
81.19.0.0/20
81.19.32.0/20
81.22.236.0/22
81.25.16.0/20
81.27.192.0/20
81.28.16.0/20
81.30.224.0/19
81.31.32.0/20
81.90.160.0/20
81.90.240.0/20
81.91.80.0/20
81.91.208.0/20
81.92.144.0/20
81.95.96.0/20
81.161.64.0/20
81.162.192.0/20
81.200.48.0/20
81.201.48.0/20
82.99.128.0/18
82.100.0.0/18
82.113.32.0/19
82.114.192.0/19
82.117.128.0/19
82.119.240.0/20
82.142.64.0/18
82.144.128.0/19
82.150.160.0/19
82.202.0.0/17
82.208.0.0/20
82.208.16.0/22
82.208.24.0/21
82.208.32.0/19
82.209.0.0/18
83.69.32.0/19
83.136.200.0/21
83.148.0.0/18
83.167.224.0/19
83.208.0.0/16
83.240.0.0/17
84.16.96.0/19
84.19.64.0/19
84.21.96.0/19
84.42.128.0/17
84.242.64.0/18
84.244.64.0/18
84.246.160.0/21
85.13.64.0/18
85.70.0.0/15
85.92.32.0/19
85.92.96.0/22
85.93.96.0/19
85.93.160.0/19
85.118.128.0/21
85.119.88.0/21
85.132.128.0/18
85.135.0.0/17
85.158.184.0/21
85.160.0.0/14
85.184.16.0/20
85.193.0.0/18
85.207.0.0/16
85.209.28.0/22
85.209.124.0/22
85.239.64.0/19
85.239.224.0/22
85.239.228.0/23
85.239.251.0/24
85.239.252.0/22
85.255.88.0/22
86.49.0.0/16
86.61.128.0/17
86.63.192.0/19
86.111.213.0/24
87.236.192.0/21
87.249.140.0/22
87.249.144.0/20
88.81.64.0/19
88.83.160.0/19
88.83.224.0/19
88.86.96.0/19
88.100.0.0/14
88.146.0.0/16
88.151.9.0/24
88.208.64.0/18
89.22.48.0/24
89.22.64.0/19
89.23.125.0/24
89.24.0.0/16
89.29.0.0/17
89.31.8.0/21
89.31.40.0/21
89.31.160.0/21
89.102.0.0/15
89.107.128.0/21
89.111.64.0/18
89.150.53.0/24
89.150.54.0/24
89.176.0.0/15
89.185.224.0/19
89.187.128.0/18
89.187.192.0/21
89.190.32.0/19
89.190.64.0/19
89.190.128.0/22
89.203.128.0/17
89.221.208.0/20
89.233.128.0/18
89.235.0.0/18
89.239.0.0/19
89.248.240.0/20
89.250.96.0/20