fetus

🇬🇧イギリスUnited Kingdom


割り振り一覧

イギリスに割り振りされた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。

イギリスには133,139,336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3.09989%、予約領域を除くと3.59617%です。


801-1000 of 8609 rows
CIDRIPアドレス割り振り日レジストリ
46.248.224.0/1946.248.224.0 - 46.248.255.2552010/12/28RIPE NCC
46.249.192.0/1946.249.192.0 - 46.249.223.2552011/01/13RIPE NCC
46.250.224.0/1946.250.224.0 - 46.250.255.2552011/02/02RIPE NCC
46.252.64.0/2046.252.64.0 - 46.252.79.2552010/12/20RIPE NCC
46.252.80.0/2046.252.80.0 - 46.252.95.2552010/12/20RIPE NCC
46.253.129.0/2446.253.129.0 - 46.253.129.2552021/09/21RIPE NCC
46.254.0.0/2146.254.0.0 - 46.254.7.2552010/12/14RIPE NCC
46.254.111.0/2446.254.111.0 - 46.254.111.2552021/08/06RIPE NCC
46.254.112.0/2146.254.112.0 - 46.254.119.2552010/12/20RIPE NCC
46.254.184.0/2146.254.184.0 - 46.254.191.2552010/12/22RIPE NCC
46.254.192.0/2146.254.192.0 - 46.254.199.2552010/12/22RIPE NCC
46.254.200.0/2146.254.200.0 - 46.254.207.2552010/12/22RIPE NCC
46.255.0.0/2146.255.0.0 - 46.255.7.2552010/12/23RIPE NCC
46.255.29.0/2446.255.29.0 - 46.255.29.2552024/07/08RIPE NCC
46.255.72.0/2146.255.72.0 - 46.255.79.2552010/12/27RIPE NCC
46.255.112.0/2146.255.112.0 - 46.255.119.2552010/12/28RIPE NCC
46.255.248.0/2146.255.248.0 - 46.255.255.2552011/01/07RIPE NCC
48.192.0.0/1248.192.0.0 - 48.207.255.2551990/12/07RIPE NCC
48.208.0.0/1348.208.0.0 - 48.215.255.2551990/12/07RIPE NCC
48.216.0.0/1448.216.0.0 - 48.219.255.2551990/12/07RIPE NCC
48.220.0.0/1548.220.0.0 - 48.221.255.2551990/12/07RIPE NCC
48.222.0.0/1548.222.0.0 - 48.223.255.2551990/12/07RIPE NCC
48.224.0.0/1348.224.0.0 - 48.231.255.2551990/12/07RIPE NCC
48.232.0.0/1348.232.0.0 - 48.239.255.2551990/12/07RIPE NCC
48.240.0.0/1348.240.0.0 - 48.247.255.2551990/12/07RIPE NCC
48.248.0.0/1348.248.0.0 - 48.255.255.2551990/12/07RIPE NCC
50.20.0.0/1850.20.0.0 - 50.20.63.2552010/10/15RIPE NCC
50.20.64.0/1950.20.64.0 - 50.20.95.2552010/10/15RIPE NCC
50.20.128.0/1850.20.128.0 - 50.20.191.2552010/10/15RIPE NCC
50.21.32.0/1950.21.32.0 - 50.21.63.2552010/10/15RIPE NCC
50.85.0.0/1650.85.0.0 - 50.85.255.2552011/01/10RIPE NCC
51.1.0.0/1651.1.0.0 - 51.1.255.2551993/09/01RIPE NCC
51.2.0.0/1651.2.0.0 - 51.2.255.2551993/09/01RIPE NCC
51.6.0.0/1551.6.0.0 - 51.7.255.2551993/09/01RIPE NCC
51.9.0.0/1651.9.0.0 - 51.9.255.2551993/09/01RIPE NCC
51.10.0.0/1551.10.0.0 - 51.11.255.2551993/09/01RIPE NCC
51.12.0.0/1551.12.0.0 - 51.13.255.2551993/09/01RIPE NCC
51.14.0.0/1651.14.0.0 - 51.14.255.2551993/09/01RIPE NCC
51.19.0.0/1651.19.0.0 - 51.19.255.2551993/09/01RIPE NCC
51.33.0.0/1651.33.0.0 - 51.33.255.2551993/09/01RIPE NCC
51.41.0.0/1651.41.0.0 - 51.41.255.2551993/09/01RIPE NCC
51.42.0.0/1651.42.0.0 - 51.42.255.2551993/09/01RIPE NCC
51.43.0.0/1651.43.0.0 - 51.43.255.2551993/09/01RIPE NCC
51.51.0.0/1651.51.0.0 - 51.51.255.2551993/09/01RIPE NCC
51.52.0.0/1651.52.0.0 - 51.52.255.2551993/09/01RIPE NCC
51.53.0.0/1651.53.0.0 - 51.53.255.2551993/09/01RIPE NCC
51.54.0.0/1551.54.0.0 - 51.55.255.2551993/09/01RIPE NCC
51.56.0.0/1451.56.0.0 - 51.59.255.2551993/09/01RIPE NCC
51.61.0.0/1651.61.0.0 - 51.61.255.2551993/09/01RIPE NCC
51.62.0.0/1551.62.0.0 - 51.63.255.2551993/09/01RIPE NCC
51.64.0.0/1651.64.0.0 - 51.64.255.2551993/09/01RIPE NCC
51.65.0.0/1651.65.0.0 - 51.65.255.2551993/09/01RIPE NCC
51.66.0.0/1551.66.0.0 - 51.67.255.2551993/09/01RIPE NCC
51.71.0.0/1651.71.0.0 - 51.71.255.2551993/09/01RIPE NCC
51.103.0.0/1651.103.0.0 - 51.103.255.2551993/09/01RIPE NCC
51.104.0.0/1551.104.0.0 - 51.105.255.2551993/09/01RIPE NCC
51.106.0.0/1651.106.0.0 - 51.106.255.2551993/09/01RIPE NCC
51.107.0.0/1651.107.0.0 - 51.107.255.2551993/09/01RIPE NCC
51.109.0.0/1651.109.0.0 - 51.109.255.2551993/09/01RIPE NCC
51.111.0.0/1651.111.0.0 - 51.111.255.2551993/09/01RIPE NCC
51.115.0.0/1651.115.0.0 - 51.115.255.2551993/09/01RIPE NCC
51.116.0.0/1651.116.0.0 - 51.116.255.2551993/09/01RIPE NCC
51.120.0.0/1651.120.0.0 - 51.120.255.2551993/09/01RIPE NCC
51.124.0.0/1651.124.0.0 - 51.124.255.2551993/09/01RIPE NCC
51.126.0.0/1651.126.0.0 - 51.126.255.2551993/09/01RIPE NCC
51.130.0.0/1651.130.0.0 - 51.130.255.2551993/09/01RIPE NCC
51.132.0.0/1651.132.0.0 - 51.132.255.2551993/09/01RIPE NCC
51.133.0.0/1651.133.0.0 - 51.133.255.2551993/09/01RIPE NCC
51.135.0.0/1651.135.0.0 - 51.135.255.2551993/09/01RIPE NCC
51.136.0.0/1551.136.0.0 - 51.137.255.2551993/09/01RIPE NCC
51.138.0.0/1651.138.0.0 - 51.138.255.2551993/09/01RIPE NCC
51.140.0.0/1451.140.0.0 - 51.143.255.2551993/09/01RIPE NCC
51.144.0.0/1551.144.0.0 - 51.145.255.2551993/09/01RIPE NCC
51.146.0.0/1651.146.0.0 - 51.146.255.2551993/09/01RIPE NCC
51.147.0.0/1651.147.0.0 - 51.147.255.2551993/09/01RIPE NCC
51.148.0.0/1651.148.0.0 - 51.148.255.2551993/09/01RIPE NCC
51.149.0.0/1651.149.0.0 - 51.149.255.2551993/09/01RIPE NCC
51.155.0.0/1651.155.0.0 - 51.155.255.2551993/09/01RIPE NCC
51.162.128.0/1751.162.128.0 - 51.162.255.2551993/09/01RIPE NCC
51.163.0.0/1751.163.0.0 - 51.163.127.2551993/09/01RIPE NCC
51.163.128.0/1951.163.128.0 - 51.163.159.2551993/09/01RIPE NCC
51.179.128.0/1851.179.128.0 - 51.179.191.2551993/09/01RIPE NCC
51.179.192.0/1851.179.192.0 - 51.179.255.2551993/09/01RIPE NCC
51.182.0.0/1551.182.0.0 - 51.183.255.2551993/09/01RIPE NCC
51.186.0.0/1551.186.0.0 - 51.187.255.2551993/09/01RIPE NCC
51.190.0.0/1551.190.0.0 - 51.191.255.2551993/09/01RIPE NCC
51.194.0.0/1651.194.0.0 - 51.194.255.2551993/09/01RIPE NCC
51.198.0.0/1551.198.0.0 - 51.199.255.2551993/09/01RIPE NCC
51.219.0.0/1651.219.0.0 - 51.219.255.2551993/09/01RIPE NCC
51.230.0.0/1551.230.0.0 - 51.231.255.2551993/09/01RIPE NCC
51.234.0.0/1651.234.0.0 - 51.234.255.2551993/09/01RIPE NCC
51.238.0.0/1551.238.0.0 - 51.239.255.2551993/09/01RIPE NCC
51.241.0.0/1651.241.0.0 - 51.241.255.2551993/09/01RIPE NCC
51.242.0.0/1551.242.0.0 - 51.243.255.2551993/09/01RIPE NCC
51.246.0.0/1551.246.0.0 - 51.247.255.2551993/09/01RIPE NCC
51.251.0.0/1651.251.0.0 - 51.251.255.2551993/09/01RIPE NCC
57.133.0.0/1657.133.0.0 - 57.133.255.2551993/06/21RIPE NCC
57.150.0.0/1557.150.0.0 - 57.151.255.2551993/06/21RIPE NCC
57.152.0.0/1357.152.0.0 - 57.159.255.2551993/06/21RIPE NCC
57.160.0.0/1257.160.0.0 - 57.175.255.2551993/06/21RIPE NCC
62.3.13.0/2462.3.13.0 - 62.3.13.2552021/11/08RIPE NCC
62.3.24.0/2462.3.24.0 - 62.3.24.2552021/11/08RIPE NCC
62.3.52.0/2462.3.52.0 - 62.3.52.2552021/11/09RIPE NCC
62.3.64.0/1862.3.64.0 - 62.3.127.2552001/06/29RIPE NCC
62.3.192.0/1862.3.192.0 - 62.3.255.2552003/02/12RIPE NCC
62.5.0.0/1762.5.0.0 - 62.5.127.2552000/03/02RIPE NCC
62.6.0.0/1662.6.0.0 - 62.6.255.2551999/07/01RIPE NCC
62.7.0.0/1662.7.0.0 - 62.7.255.2551999/12/03RIPE NCC
62.8.96.0/1962.8.96.0 - 62.8.127.2552001/06/19RIPE NCC
62.10.0.0/1562.10.0.0 - 62.11.255.2551999/08/10RIPE NCC
62.12.56.0/2162.12.56.0 - 62.12.63.2552004/11/22RIPE NCC
62.13.128.0/1962.13.128.0 - 62.13.159.2552000/06/27RIPE NCC
62.23.0.0/1662.23.0.0 - 62.23.255.2552000/10/17RIPE NCC
62.24.128.0/1762.24.128.0 - 62.24.255.2552000/04/13RIPE NCC
62.25.64.0/1862.25.64.0 - 62.25.127.2552000/03/29RIPE NCC
62.25.128.0/1762.25.128.0 - 62.25.255.2552000/11/23RIPE NCC
62.30.0.0/1662.30.0.0 - 62.30.255.2552000/02/11RIPE NCC
62.31.0.0/1662.31.0.0 - 62.31.255.2552000/03/22RIPE NCC
62.44.64.0/1962.44.64.0 - 62.44.95.2552000/06/15RIPE NCC
62.49.0.0/1662.49.0.0 - 62.49.255.2552000/06/22RIPE NCC
62.56.0.0/1762.56.0.0 - 62.56.127.2551999/05/20RIPE NCC
62.56.176.0/2062.56.176.0 - 62.56.191.2552000/12/18RIPE NCC
62.60.0.0/1862.60.0.0 - 62.60.63.2551999/06/21RIPE NCC
62.60.64.0/1862.60.64.0 - 62.60.127.2552000/04/12RIPE NCC
62.64.128.0/2162.64.128.0 - 62.64.135.2552000/11/13RIPE NCC
62.64.136.0/2262.64.136.0 - 62.64.139.2552000/11/13RIPE NCC
62.64.140.0/2262.64.140.0 - 62.64.143.2552000/11/13RIPE NCC
62.64.144.0/2062.64.144.0 - 62.64.159.2552000/11/13RIPE NCC
62.64.160.0/1962.64.160.0 - 62.64.191.2552000/11/13RIPE NCC
62.64.192.0/1862.64.192.0 - 62.64.255.2552000/11/13RIPE NCC
62.67.0.0/1662.67.0.0 - 62.67.255.2552000/11/08RIPE NCC
62.68.95.0/2462.68.95.0 - 62.68.95.2552022/01/25RIPE NCC
62.68.160.0/1962.68.160.0 - 62.68.191.2552002/08/29RIPE NCC
62.69.32.0/1962.69.32.0 - 62.69.63.2552002/09/20RIPE NCC
62.69.64.0/1862.69.64.0 - 62.69.127.2552001/06/19RIPE NCC
62.69.136.0/2162.69.136.0 - 62.69.143.2552012/09/10RIPE NCC
62.72.96.0/1962.72.96.0 - 62.72.127.2552001/10/29RIPE NCC
62.72.128.0/1962.72.128.0 - 62.72.159.2552000/06/27RIPE NCC
62.73.128.0/1962.73.128.0 - 62.73.159.2552000/07/25RIPE NCC
62.73.160.0/1962.73.160.0 - 62.73.191.2552002/01/29RIPE NCC
62.77.0.0/1962.77.0.0 - 62.77.31.2552000/07/06RIPE NCC
62.80.64.0/1962.80.64.0 - 62.80.95.2552000/06/22RIPE NCC
62.84.192.0/1962.84.192.0 - 62.84.223.2552000/06/29RIPE NCC
62.89.128.0/1962.89.128.0 - 62.89.159.2552003/06/24RIPE NCC
62.93.128.0/1962.93.128.0 - 62.93.159.2552000/07/25RIPE NCC
62.96.0.0/1762.96.0.0 - 62.96.127.2551999/05/03RIPE NCC
62.96.128.0/1762.96.128.0 - 62.96.255.2551999/06/23RIPE NCC
62.97.64.0/1862.97.64.0 - 62.97.127.2552001/07/16RIPE NCC
62.100.160.0/1962.100.160.0 - 62.100.191.2552002/11/29RIPE NCC
62.100.204.0/2262.100.204.0 - 62.100.207.2552008/07/09RIPE NCC
62.102.0.0/1762.102.0.0 - 62.102.127.2552000/08/29RIPE NCC
62.105.64.0/1862.105.64.0 - 62.105.127.2552001/07/25RIPE NCC
62.105.160.0/1962.105.160.0 - 62.105.191.2552002/02/28RIPE NCC
62.106.78.0/2462.106.78.0 - 62.106.78.2552021/10/07RIPE NCC
62.106.85.0/2462.106.85.0 - 62.106.85.2552021/10/08RIPE NCC
62.112.128.0/1962.112.128.0 - 62.112.159.2552000/06/23RIPE NCC
62.121.0.0/1962.121.0.0 - 62.121.31.2552000/07/12RIPE NCC
62.128.128.0/1962.128.128.0 - 62.128.159.2552000/09/08RIPE NCC
62.128.192.0/1962.128.192.0 - 62.128.223.2552000/06/26RIPE NCC
62.130.0.0/1662.130.0.0 - 62.130.255.2552000/09/18RIPE NCC
62.133.0.0/1962.133.0.0 - 62.133.31.2552008/10/02RIPE NCC
62.133.48.0/2262.133.48.0 - 62.133.51.2552018/10/02RIPE NCC
62.134.0.0/1662.134.0.0 - 62.134.255.2552000/09/18RIPE NCC
62.136.0.0/1662.136.0.0 - 62.136.255.2551997/05/06RIPE NCC
62.137.0.0/1662.137.0.0 - 62.137.255.2551999/05/21RIPE NCC
62.140.0.0/1962.140.0.0 - 62.140.31.2551997/08/20RIPE NCC
62.140.192.0/1962.140.192.0 - 62.140.223.2552000/06/30RIPE NCC
62.145.64.0/1862.145.64.0 - 62.145.127.2552001/09/18RIPE NCC
62.149.32.0/1962.149.32.0 - 62.149.63.2552003/01/17RIPE NCC
62.152.96.0/1962.152.96.0 - 62.152.127.2552001/09/20RIPE NCC
62.164.128.0/1862.164.128.0 - 62.164.191.2551997/09/24RIPE NCC
62.164.192.0/2062.164.192.0 - 62.164.207.2551997/09/24RIPE NCC
62.169.148.0/2362.169.148.0 - 62.169.149.2552000/08/01RIPE NCC
62.169.150.0/2462.169.150.0 - 62.169.150.2552000/08/01RIPE NCC
62.169.151.0/2462.169.151.0 - 62.169.151.2552000/08/01RIPE NCC
62.169.154.0/2462.169.154.0 - 62.169.154.2552000/08/01RIPE NCC
62.169.157.0/2462.169.157.0 - 62.169.157.2552000/08/01RIPE NCC
62.169.158.0/2362.169.158.0 - 62.169.159.2552000/08/01RIPE NCC
62.171.192.0/1862.171.192.0 - 62.171.255.2552000/08/18RIPE NCC
62.172.0.0/1662.172.0.0 - 62.172.255.2551997/10/03RIPE NCC
62.173.64.0/1862.173.64.0 - 62.173.127.2552001/10/02RIPE NCC
62.173.192.0/1862.173.192.0 - 62.173.255.2552003/01/17RIPE NCC
62.180.0.0/1962.180.0.0 - 62.180.31.2551997/10/08RIPE NCC
62.180.32.0/1962.180.32.0 - 62.180.63.2551998/07/10RIPE NCC
62.180.64.0/1862.180.64.0 - 62.180.127.2551998/07/10RIPE NCC
62.180.128.0/1762.180.128.0 - 62.180.255.2551998/07/10RIPE NCC
62.182.16.0/2162.182.16.0 - 62.182.23.2552008/01/30RIPE NCC
62.182.96.0/2262.182.96.0 - 62.182.99.2552019/02/25RIPE NCC
62.189.0.0/1662.189.0.0 - 62.189.255.2552000/07/20RIPE NCC
62.190.0.0/1662.190.0.0 - 62.190.255.2552000/07/20RIPE NCC
62.192.0.0/1962.192.0.0 - 62.192.31.2552006/07/04RIPE NCC
62.192.128.0/2262.192.128.0 - 62.192.131.2552018/10/03RIPE NCC
62.192.184.0/2262.192.184.0 - 62.192.187.2552019/01/10RIPE NCC
62.197.32.0/2162.197.32.0 - 62.197.39.2552003/04/28RIPE NCC
62.197.40.0/2362.197.40.0 - 62.197.41.2552003/04/28RIPE NCC
62.197.42.0/2362.197.42.0 - 62.197.43.2552003/04/28RIPE NCC
62.197.44.0/2462.197.44.0 - 62.197.44.2552003/04/28RIPE NCC
62.197.45.0/2462.197.45.0 - 62.197.45.2552003/04/28RIPE NCC
62.197.46.0/2362.197.46.0 - 62.197.47.2552003/04/28RIPE NCC
62.197.48.0/2362.197.48.0 - 62.197.49.2552003/04/28RIPE 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。

1-200 of 7585 rows
CIDR
1.186.0.0/16
2.24.0.0/13
2.56.84.0/22
2.56.188.0/22
2.56.196.0/22
2.57.44.0/22
2.57.196.0/22
2.57.200.0/22
2.57.237.0/24
2.58.4.0/22
2.58.152.0/22
2.58.160.0/22
2.58.192.0/22
2.59.24.0/22
2.59.200.0/22
2.96.0.0/13
2.120.0.0/13
2.216.0.0/13
5.1.45.0/24
5.2.16.0/21
5.2.96.0/19
5.10.16.0/20
5.10.136.0/21
5.10.144.0/20
5.11.8.0/21
5.11.16.0/20
5.11.88.0/21
5.22.136.0/21
5.22.224.0/21
5.28.48.0/20
5.32.152.0/21
5.39.176.0/21
5.39.248.0/21
5.44.16.0/20
5.44.224.0/20
5.45.16.0/20
5.45.48.0/21
5.45.64.0/19
5.53.64.0/19
5.56.48.0/21
5.56.168.0/21
5.57.56.0/21
5.57.80.0/20
5.61.32.0/19
5.61.72.0/21
5.61.120.0/21
5.62.0.0/18
5.63.18.0/24
5.64.0.0/13
5.77.32.0/19
5.79.0.0/18
5.80.0.0/15
5.83.8.0/21
5.83.96.0/21
5.83.192.0/19
5.100.168.0/21
5.101.136.0/21
5.101.144.0/21
5.101.168.0/21
5.102.80.0/20
5.102.168.0/21
5.102.184.0/21
5.133.16.0/21
5.133.40.0/21
5.133.72.0/22
5.133.80.0/22
5.133.88.0/22
5.133.168.0/21
5.133.176.0/20
5.133.240.0/21
5.134.8.0/21
5.144.80.0/20
5.144.152.0/21
5.144.176.0/21
5.145.178.0/23
5.148.0.0/17
5.148.128.0/19
5.149.8.0/21
5.150.0.0/17
5.150.160.0/19
5.151.0.0/16
5.152.192.0/19
5.153.64.0/19
5.153.96.0/21
5.153.192.0/19
5.153.224.0/21
5.153.248.0/21
5.154.128.0/19
5.154.182.0/23
5.154.184.0/24
5.154.188.0/23
5.154.232.0/24
5.154.242.0/24
5.157.64.0/21
5.158.88.0/21
5.158.208.0/21
5.158.224.0/21
5.159.120.0/21
5.159.196.0/22
5.159.200.0/21
5.159.208.0/21
5.159.224.0/21
5.172.48.0/20
5.172.152.0/21
5.172.160.0/20
5.172.183.0/24
5.175.56.0/21
5.178.96.0/20
5.179.72.0/21
5.179.96.0/20
5.180.96.0/22
5.180.188.0/22
5.180.208.0/21
5.181.4.0/22
5.181.20.0/22
5.181.52.0/24
5.181.56.0/22
5.181.72.0/22
5.181.104.0/22
5.181.136.0/22
5.182.8.0/22
5.182.76.0/22
5.182.220.0/22
5.183.44.0/22
5.183.60.0/22
5.183.112.0/22
5.183.176.0/22
5.187.16.0/20
5.198.0.0/17
5.198.136.0/21
5.199.0.0/17
5.226.56.0/21
5.226.136.0/21
5.226.176.0/21
5.252.36.0/22
5.252.156.0/22
5.252.208.0/22
5.252.220.0/22
5.253.104.0/21
5.253.112.0/22
5.253.168.0/22
5.253.224.0/24
5.253.252.0/22
5.254.0.0/17
5.254.160.0/21
5.255.48.0/21
5.255.58.0/23
5.255.60.0/24
5.255.136.0/21
9.135.0.0/16
9.141.0.0/16
9.145.0.0/16
9.146.0.0/16
9.149.0.0/16
9.160.0.0/16
9.163.0.0/16
9.164.0.0/16
9.166.0.0/15
9.169.0.0/16
9.177.0.0/16
9.185.0.0/16
9.205.0.0/16
9.220.0.0/16
9.223.0.0/16
9.228.0.0/15
9.231.0.0/16
9.234.0.0/15
9.248.0.0/16
13.117.0.0/16
13.118.0.0/15
13.123.0.0/16
13.240.0.0/16
23.19.56.0/21
23.90.64.0/22
23.106.32.0/21
23.106.56.0/21
23.106.232.0/21
23.146.248.0/24
25.0.0.0/8
27.121.104.0/22
31.3.64.0/21
31.3.208.0/20
31.3.224.0/19
31.6.72.0/21
31.7.8.0/21
31.10.32.0/20
31.11.56.0/21
31.12.96.0/19
31.13.0.0/21
31.13.152.0/21
31.14.31.0/24
31.14.36.0/22
31.14.65.0/24
31.14.66.0/23
31.14.102.0/24
31.14.216.0/23
31.14.248.0/22
31.14.254.0/24
31.15.104.0/21
31.22.0.0/21