fetus

🇮🇹イタリアItaly


割り振り一覧

イタリアに割り振りされた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。

イタリアには54,033,216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1.25806%、予約領域を除くと1.45947%です。


201-400 of 3560 rows
CIDRIPアドレス割り振り日レジストリ
37.156.174.0/2437.156.174.0 - 37.156.174.2552012/03/13RIPE NCC
37.156.208.0/2237.156.208.0 - 37.156.211.2552012/03/13RIPE NCC
37.156.244.0/2437.156.244.0 - 37.156.244.2552012/03/13RIPE NCC
37.159.0.0/1637.159.0.0 - 37.159.255.2552012/03/19RIPE NCC
37.176.0.0/1337.176.0.0 - 37.183.255.2552012/03/19RIPE NCC
37.186.128.0/1837.186.128.0 - 37.186.191.2552012/03/20RIPE NCC
37.186.192.0/1837.186.192.0 - 37.186.255.2552012/03/20RIPE NCC
37.200.80.0/2237.200.80.0 - 37.200.83.2552018/06/14RIPE NCC
37.202.16.0/2137.202.16.0 - 37.202.23.2552012/03/22RIPE NCC
37.203.224.0/2037.203.224.0 - 37.203.239.2552012/03/27RIPE NCC
37.205.128.0/1737.205.128.0 - 37.205.255.2552012/03/28RIPE NCC
37.206.0.0/1537.206.0.0 - 37.207.255.2552012/03/28RIPE NCC
37.209.200.0/2137.209.200.0 - 37.209.207.2552012/03/30RIPE NCC
37.220.40.0/2137.220.40.0 - 37.220.47.2552012/04/03RIPE NCC
37.221.96.0/2237.221.96.0 - 37.221.99.2552018/11/12RIPE NCC
37.221.120.0/2237.221.120.0 - 37.221.123.2552018/11/12RIPE NCC
37.226.0.0/1537.226.0.0 - 37.227.255.2552012/04/10RIPE NCC
37.247.48.0/2137.247.48.0 - 37.247.55.2552012/04/18RIPE NCC
45.8.74.0/2345.8.74.0 - 45.8.75.2552019/04/12RIPE NCC
45.9.96.0/2245.9.96.0 - 45.9.99.2552019/04/18RIPE NCC
45.9.224.0/2245.9.224.0 - 45.9.227.2552019/04/23RIPE NCC
45.10.12.0/2245.10.12.0 - 45.10.15.2552019/04/23RIPE NCC
45.10.72.0/2245.10.72.0 - 45.10.75.2552019/04/24RIPE NCC
45.10.84.0/2245.10.84.0 - 45.10.87.2552019/04/24RIPE NCC
45.10.220.0/2245.10.220.0 - 45.10.223.2552019/04/25RIPE NCC
45.11.116.0/2245.11.116.0 - 45.11.119.2552019/04/26RIPE NCC
45.12.248.0/2245.12.248.0 - 45.12.251.2552019/05/02RIPE NCC
45.13.68.0/2245.13.68.0 - 45.13.71.2552019/05/03RIPE NCC
45.13.80.0/2245.13.80.0 - 45.13.83.2552019/05/03RIPE NCC
45.13.88.0/2245.13.88.0 - 45.13.91.2552019/05/03RIPE NCC
45.13.120.0/2245.13.120.0 - 45.13.123.2552019/05/03RIPE NCC
45.13.128.0/2245.13.128.0 - 45.13.131.2552019/05/03RIPE NCC
45.13.144.0/2245.13.144.0 - 45.13.147.2552019/05/06RIPE NCC
45.14.152.0/2245.14.152.0 - 45.14.155.2552019/05/09RIPE NCC
45.14.160.0/2245.14.160.0 - 45.14.163.2552019/05/09RIPE NCC
45.14.184.0/2245.14.184.0 - 45.14.187.2552019/05/09RIPE NCC
45.15.92.0/2245.15.92.0 - 45.15.95.2552019/05/10RIPE NCC
45.33.224.0/2045.33.224.0 - 45.33.239.2552015/03/27RIPE NCC
45.65.120.0/2245.65.120.0 - 45.65.123.2552018/11/13RIPE NCC
45.66.16.0/2245.66.16.0 - 45.66.19.2552019/02/12RIPE NCC
45.66.80.0/2245.66.80.0 - 45.66.83.2552019/02/12RIPE NCC
45.66.100.0/2245.66.100.0 - 45.66.103.2552019/02/13RIPE NCC
45.66.144.0/2245.66.144.0 - 45.66.147.2552019/02/13RIPE NCC
45.66.204.0/2245.66.204.0 - 45.66.207.2552019/02/14RIPE NCC
45.66.224.0/2245.66.224.0 - 45.66.227.2552019/02/14RIPE NCC
45.66.229.0/2445.66.229.0 - 45.66.229.2552019/02/14RIPE NCC
45.67.40.0/2245.67.40.0 - 45.67.43.2552019/02/15RIPE NCC
45.67.112.0/2245.67.112.0 - 45.67.115.2552019/02/18RIPE NCC
45.67.124.0/2245.67.124.0 - 45.67.127.2552019/02/18RIPE NCC
45.80.172.0/2345.80.172.0 - 45.80.173.2552019/05/15RIPE NCC
45.81.64.0/2245.81.64.0 - 45.81.67.2552019/05/17RIPE NCC
45.81.156.0/2245.81.156.0 - 45.81.159.2552019/05/20RIPE NCC
45.81.241.0/2445.81.241.0 - 45.81.241.2552019/05/21RIPE NCC
45.81.242.0/2445.81.242.0 - 45.81.242.2552019/05/21RIPE NCC
45.82.0.0/2245.82.0.0 - 45.82.3.2552019/05/21RIPE NCC
45.82.112.0/2245.82.112.0 - 45.82.115.2552019/05/23RIPE NCC
45.82.132.0/2245.82.132.0 - 45.82.135.2552019/05/23RIPE NCC
45.82.200.0/2245.82.200.0 - 45.82.203.2552019/05/24RIPE NCC
45.82.228.0/2245.82.228.0 - 45.82.231.2552019/05/24RIPE NCC
45.83.56.0/2245.83.56.0 - 45.83.59.2552019/05/27RIPE NCC
45.84.140.0/2245.84.140.0 - 45.84.143.2552019/05/31RIPE NCC
45.84.168.0/2245.84.168.0 - 45.84.171.2552019/05/31RIPE NCC
45.85.16.0/2245.85.16.0 - 45.85.19.2552019/06/04RIPE NCC
45.85.164.0/2245.85.164.0 - 45.85.167.2552019/06/06RIPE NCC
45.86.108.0/2245.86.108.0 - 45.86.111.2552019/06/12RIPE NCC
45.86.144.0/2245.86.144.0 - 45.86.147.2552019/06/12RIPE NCC
45.86.148.0/2245.86.148.0 - 45.86.151.2552019/06/12RIPE NCC
45.87.36.0/2245.87.36.0 - 45.87.39.2552019/06/13RIPE NCC
45.87.64.0/2245.87.64.0 - 45.87.67.2552019/06/14RIPE NCC
45.89.120.0/2245.89.120.0 - 45.89.123.2552019/06/21RIPE NCC
45.89.180.0/2245.89.180.0 - 45.89.183.2552019/06/21RIPE NCC
45.90.92.0/2245.90.92.0 - 45.90.95.2552019/06/24RIPE NCC
45.90.124.0/2345.90.124.0 - 45.90.125.2552019/06/25RIPE NCC
45.90.126.0/2345.90.126.0 - 45.90.127.2552019/06/25RIPE NCC
45.90.156.0/2245.90.156.0 - 45.90.159.2552019/06/25RIPE NCC
45.90.168.0/2345.90.168.0 - 45.90.169.2552019/06/25RIPE NCC
45.90.170.0/2445.90.170.0 - 45.90.170.2552019/06/25RIPE NCC
45.90.171.0/2445.90.171.0 - 45.90.171.2552019/06/25RIPE NCC
45.90.232.0/2245.90.232.0 - 45.90.235.2552019/06/26RIPE NCC
45.90.240.0/2245.90.240.0 - 45.90.243.2552019/06/26RIPE NCC
45.91.120.0/2445.91.120.0 - 45.91.120.2552019/06/27RIPE NCC
45.91.184.0/2245.91.184.0 - 45.91.187.2552019/06/27RIPE NCC
45.92.56.0/2245.92.56.0 - 45.92.59.2552019/07/01RIPE NCC
45.92.148.0/2245.92.148.0 - 45.92.151.2552019/07/01RIPE NCC
45.93.36.0/2245.93.36.0 - 45.93.39.2552019/07/03RIPE NCC
45.93.204.0/2245.93.204.0 - 45.93.207.2552019/07/04RIPE NCC
45.94.0.0/2245.94.0.0 - 45.94.3.2552019/07/05RIPE NCC
45.95.10.0/2445.95.10.0 - 45.95.10.2552021/06/04RIPE NCC
45.95.210.0/2445.95.210.0 - 45.95.210.2552019/07/10RIPE NCC
45.95.211.0/2445.95.211.0 - 45.95.211.2552019/07/10RIPE NCC
45.117.232.0/2245.117.232.0 - 45.117.235.2552015/05/22RIPE NCC
45.128.240.0/2245.128.240.0 - 45.128.243.2552019/07/12RIPE NCC
45.129.160.0/2245.129.160.0 - 45.129.163.2552019/07/16RIPE NCC
45.129.165.0/2445.129.165.0 - 45.129.165.2552024/01/11RIPE NCC
45.129.248.0/2245.129.248.0 - 45.129.251.2552019/07/17RIPE NCC
45.130.88.0/2245.130.88.0 - 45.130.91.2552019/07/17RIPE NCC
45.130.108.0/2245.130.108.0 - 45.130.111.2552019/07/17RIPE NCC
45.131.8.0/2245.131.8.0 - 45.131.11.2552019/07/18RIPE NCC
45.131.220.0/2245.131.220.0 - 45.131.223.2552019/07/22RIPE NCC
45.131.236.0/2245.131.236.0 - 45.131.239.2552019/07/22RIPE NCC
45.132.208.0/2245.132.208.0 - 45.132.211.2552019/07/23RIPE NCC
45.132.212.0/2245.132.212.0 - 45.132.215.2552019/07/24RIPE NCC
45.132.220.0/2245.132.220.0 - 45.132.223.2552019/07/24RIPE NCC
45.133.12.0/2245.133.12.0 - 45.133.15.2552019/07/24RIPE NCC
45.133.144.0/2245.133.144.0 - 45.133.147.2552019/07/25RIPE NCC
45.133.242.0/2445.133.242.0 - 45.133.242.2552023/03/20RIPE NCC
45.135.24.0/2245.135.24.0 - 45.135.27.2552019/07/29RIPE NCC
45.135.68.0/2245.135.68.0 - 45.135.71.2552019/07/30RIPE NCC
45.136.110.0/2445.136.110.0 - 45.136.110.2552021/03/31RIPE NCC
45.137.232.0/2245.137.232.0 - 45.137.235.2552019/08/06RIPE NCC
45.138.188.0/2245.138.188.0 - 45.138.191.2552019/08/08RIPE NCC
45.138.200.0/2245.138.200.0 - 45.138.203.2552019/08/08RIPE NCC
45.139.96.0/2245.139.96.0 - 45.139.99.2552019/08/09RIPE NCC
45.139.100.0/2245.139.100.0 - 45.139.103.2552019/08/09RIPE NCC
45.140.84.0/2245.140.84.0 - 45.140.87.2552019/08/13RIPE NCC
45.140.196.0/2245.140.196.0 - 45.140.199.2552019/08/13RIPE NCC
45.141.40.0/2245.141.40.0 - 45.141.43.2552019/08/14RIPE NCC
45.141.228.0/2245.141.228.0 - 45.141.231.2552019/08/15RIPE NCC
45.142.15.0/2445.142.15.0 - 45.142.15.2552021/06/04RIPE NCC
45.142.132.0/2245.142.132.0 - 45.142.135.2552019/08/19RIPE NCC
45.142.168.0/2245.142.168.0 - 45.142.171.2552019/08/19RIPE NCC
45.142.184.0/2245.142.184.0 - 45.142.187.2552019/08/19RIPE NCC
45.143.36.0/2245.143.36.0 - 45.143.39.2552019/08/20RIPE NCC
45.143.100.0/2245.143.100.0 - 45.143.103.2552019/08/20RIPE NCC
45.143.180.0/2245.143.180.0 - 45.143.183.2552019/08/21RIPE NCC
45.144.60.0/2245.144.60.0 - 45.144.63.2552019/08/22RIPE NCC
45.144.100.0/2245.144.100.0 - 45.144.103.2552019/08/22RIPE NCC
45.144.140.0/2245.144.140.0 - 45.144.143.2552019/08/22RIPE NCC
45.144.152.0/2345.144.152.0 - 45.144.153.2552019/08/22RIPE NCC
45.145.24.0/2245.145.24.0 - 45.145.27.2552019/08/23RIPE NCC
45.145.200.0/2245.145.200.0 - 45.145.203.2552019/08/26RIPE NCC
45.145.204.0/2245.145.204.0 - 45.145.207.2552019/08/26RIPE NCC
45.147.236.0/2245.147.236.0 - 45.147.239.2552019/09/02RIPE NCC
45.148.20.0/2245.148.20.0 - 45.148.23.2552019/09/02RIPE NCC
45.148.212.0/2245.148.212.0 - 45.148.215.2552019/09/03RIPE NCC
45.149.232.0/2445.149.232.0 - 45.149.232.2552019/09/05RIPE NCC
45.149.233.0/2445.149.233.0 - 45.149.233.2552019/09/05RIPE NCC
45.150.200.0/2245.150.200.0 - 45.150.203.2552019/09/09RIPE NCC
45.151.12.0/2245.151.12.0 - 45.151.15.2552019/09/09RIPE NCC
45.151.64.0/2245.151.64.0 - 45.151.67.2552019/09/09RIPE NCC
45.151.88.0/2445.151.88.0 - 45.151.88.2552019/09/09RIPE NCC
45.152.144.0/2245.152.144.0 - 45.152.147.2552019/09/12RIPE NCC
45.154.72.0/2245.154.72.0 - 45.154.75.2552019/09/16RIPE NCC
45.155.8.0/2245.155.8.0 - 45.155.11.2552019/09/17RIPE NCC
45.156.60.0/2245.156.60.0 - 45.156.63.2552019/09/20RIPE NCC
45.157.64.0/2245.157.64.0 - 45.157.67.2552019/09/24RIPE NCC
45.157.228.0/2245.157.228.0 - 45.157.231.2552019/09/26RIPE NCC
45.159.36.0/2245.159.36.0 - 45.159.39.2552019/09/30RIPE NCC
45.159.60.0/2245.159.60.0 - 45.159.63.2552019/10/01RIPE NCC
45.159.66.0/2345.159.66.0 - 45.159.67.2552019/10/01RIPE NCC
46.16.88.0/2146.16.88.0 - 46.16.95.2552010/09/30RIPE NCC
46.16.168.0/2146.16.168.0 - 46.16.175.2552010/10/07RIPE NCC
46.17.152.0/2146.17.152.0 - 46.17.159.2552010/10/20RIPE NCC
46.18.24.0/2146.18.24.0 - 46.18.31.2552010/10/25RIPE NCC
46.18.136.0/2146.18.136.0 - 46.18.143.2552010/11/01RIPE NCC
46.18.232.0/2146.18.232.0 - 46.18.239.2552010/11/03RIPE NCC
46.19.48.0/2146.19.48.0 - 46.19.55.2552010/11/09RIPE NCC
46.19.232.0/2146.19.232.0 - 46.19.239.2552010/11/18RIPE NCC
46.20.80.0/2046.20.80.0 - 46.20.95.2552010/09/23RIPE NCC
46.21.176.0/2046.21.176.0 - 46.21.191.2552010/11/10RIPE NCC
46.23.192.0/2046.23.192.0 - 46.23.207.2552010/12/10RIPE NCC
46.28.0.0/2146.28.0.0 - 46.28.7.2552010/07/16RIPE NCC
46.28.15.0/2446.28.15.0 - 46.28.15.2552010/07/16RIPE NCC
46.28.24.0/2146.28.24.0 - 46.28.31.2552010/07/19RIPE NCC
46.28.120.0/2146.28.120.0 - 46.28.127.2552010/07/22RIPE NCC
46.29.104.0/2146.29.104.0 - 46.29.111.2552010/08/10RIPE NCC
46.29.200.0/2146.29.200.0 - 46.29.207.2552010/08/17RIPE NCC
46.30.168.0/2146.30.168.0 - 46.30.175.2552010/09/07RIPE NCC
46.30.216.0/2446.30.216.0 - 46.30.216.2552010/09/08RIPE NCC
46.30.217.0/2446.30.217.0 - 46.30.217.2552010/09/08RIPE NCC
46.30.218.0/2446.30.218.0 - 46.30.218.2552010/09/08RIPE NCC
46.30.219.0/2446.30.219.0 - 46.30.219.2552010/09/08RIPE NCC
46.30.220.0/2446.30.220.0 - 46.30.220.2552010/09/08RIPE NCC
46.30.221.0/2446.30.221.0 - 46.30.221.2552010/09/08RIPE NCC
46.30.222.0/2346.30.222.0 - 46.30.223.2552010/09/08RIPE NCC
46.30.240.0/2146.30.240.0 - 46.30.247.2552011/08/23RIPE NCC
46.30.248.0/2146.30.248.0 - 46.30.255.2552010/09/10RIPE NCC
46.31.104.0/2146.31.104.0 - 46.31.111.2552010/09/16RIPE NCC
46.31.128.0/2246.31.128.0 - 46.31.131.2552010/09/20RIPE NCC
46.31.132.0/2246.31.132.0 - 46.31.135.2552010/09/20RIPE NCC
46.31.248.0/2146.31.248.0 - 46.31.255.2552010/09/24RIPE NCC
46.37.0.0/1946.37.0.0 - 46.37.31.2552010/11/03RIPE NCC
46.37.224.0/1946.37.224.0 - 46.37.255.2552010/11/19RIPE NCC
46.44.192.0/1846.44.192.0 - 46.44.255.2552010/09/01RIPE NCC
46.102.101.0/2446.102.101.0 - 46.102.101.2552010/06/25RIPE NCC
46.102.112.0/2246.102.112.0 - 46.102.115.2552010/06/25RIPE NCC
46.102.173.0/2446.102.173.0 - 46.102.173.2552010/06/25RIPE NCC
46.102.174.0/2446.102.174.0 - 46.102.174.2552010/06/25RIPE NCC
46.102.188.0/2346.102.188.0 - 46.102.189.2552010/06/25RIPE NCC
46.141.0.0/1646.141.0.0 - 46.141.255.2552010/11/22RIPE NCC
46.149.97.0/2446.149.97.0 - 46.149.97.2552020/01/28RIPE NCC
46.149.102.0/2446.149.102.0 - 46.149.102.2552020/01/28RIPE NCC
46.149.108.0/2446.149.108.0 - 46.149.108.2552020/01/29RIPE NCC
46.149.168.0/2246.149.168.0 - 46.149.171.2552018/10/29RIPE NCC
46.182.88.0/2146.182.88.0 - 46.182.95.2552010/11/24RIPE NCC
46.182.152.0/2146.182.152.0 - 46.182.159.2552010/11/25RIPE NCC
46.182.232.0/2146.182.232.0 - 46.182.239.2552010/11/30RIPE NCC
46.183.232.0/2146.183.232.0 - 46.183.239.2552010/12/13RIPE NCC
46.226.176.0/2146.226.176.0 - 46.226.183.2552011/01/24RIPE NCC
46.226.200.0/2146.226.200.0 - 46.226.207.2552011/01/25RIPE 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 3219 rows
CIDR
2.32.0.0/12
2.56.92.0/22
2.56.128.0/22
2.57.32.0/22
2.57.84.0/22
2.58.93.0/24
2.58.94.0/24
2.58.128.0/22
2.58.136.0/22
2.58.184.0/22
2.58.208.0/22
2.59.4.0/22
2.59.16.0/22
2.59.140.0/22
2.59.228.0/22
2.59.248.0/22
2.112.0.0/13
2.156.0.0/14
2.192.0.0/13
2.224.0.0/12
5.1.42.0/24
5.1.44.0/24
5.2.0.0/20
5.8.96.0/19
5.11.32.0/21
5.11.96.0/19
5.23.32.0/21
5.28.8.0/21
5.34.184.0/21
5.42.144.0/21
5.43.232.0/21
5.43.248.0/21
5.56.8.0/21
5.57.208.0/24
5.61.0.0/21
5.61.192.0/21
5.61.216.0/21
5.62.72.0/21
5.63.17.0/24
5.63.136.0/21
5.63.168.0/21
5.77.64.0/18
5.83.104.0/21
5.83.120.0/21
5.84.0.0/14
5.88.0.0/13
5.96.0.0/14
5.100.232.0/21
5.102.0.0/19
5.104.24.0/21
5.133.32.0/21
5.133.48.0/20
5.133.96.0/22
5.133.114.0/24
5.134.120.0/21
5.144.160.0/20
5.144.184.0/21
5.145.120.0/21
5.150.128.0/20
5.152.128.0/22
5.152.144.0/22
5.152.148.0/23
5.152.154.0/23
5.152.156.0/22
5.152.240.0/21
5.154.192.0/19
5.154.237.0/24
5.154.238.0/24
5.157.96.0/19
5.158.64.0/20
5.168.0.0/14
5.172.64.0/18
5.172.208.0/21
5.175.32.0/21
5.175.48.0/21
5.175.64.0/20
5.178.40.0/21
5.178.88.0/21
5.178.120.0/21
5.179.128.0/18
5.180.68.0/22
5.180.108.0/22
5.180.112.0/23
5.180.115.0/24
5.180.168.0/22
5.180.204.0/22
5.180.236.0/22
5.181.68.0/22
5.181.144.0/22
5.181.160.0/24
5.181.192.0/22
5.182.68.0/22
5.182.240.0/22
5.183.108.0/22
5.198.224.0/20
5.249.128.0/19
5.252.16.0/22
5.252.44.0/22
5.252.84.0/22
5.252.240.0/22
5.253.48.0/22
5.253.196.0/22
5.253.212.0/22
31.3.160.0/19
31.6.80.0/20
31.7.144.0/20
31.10.48.0/21
31.11.32.0/21
31.12.8.0/21
31.12.73.0/24
31.13.136.0/21
31.13.194.0/24
31.13.210.0/24
31.13.249.0/24
31.13.250.0/23
31.13.252.0/22
31.14.28.0/24
31.14.128.0/20
31.14.163.0/24
31.14.183.0/24
31.14.184.0/21
31.14.233.0/24
31.15.72.0/21
31.15.96.0/21
31.24.136.0/21
31.25.32.0/21
31.26.0.0/15
31.31.40.0/21
31.44.16.0/20
31.44.112.0/20
31.44.160.0/20
31.129.125.0/24
31.131.240.0/21
31.132.40.0/22
31.132.48.0/22
31.156.0.0/14
31.169.104.0/21
31.170.40.0/21
31.171.136.0/21
31.177.40.0/21
31.177.112.0/21
31.185.16.0/21
31.185.96.0/21
31.186.40.0/21
31.187.104.0/21
31.188.0.0/14
31.193.16.0/20
31.193.56.0/21
31.193.144.0/20
31.193.188.0/24
31.194.0.0/15
31.196.0.0/14
31.207.96.0/19
31.214.153.0/24
31.216.128.0/22
31.216.152.0/21
31.216.240.0/20
31.217.200.0/21
31.223.240.0/20
37.9.224.0/20
37.10.80.0/20
37.32.80.0/20
37.32.104.0/21
37.34.32.0/20
37.34.72.0/21
37.60.32.0/21
37.61.228.0/24
37.72.32.0/21
37.77.96.0/21
37.77.112.0/20
37.77.136.0/21
37.77.160.0/21
37.77.208.0/20
37.99.208.0/21
37.99.224.0/19
37.100.0.0/14
37.114.8.0/21
37.116.0.0/14
37.123.240.0/21
37.128.136.0/21
37.130.152.0/21
37.130.216.0/21
37.139.88.0/21
37.139.129.0/24
37.140.218.0/24
37.148.224.0/21
37.153.135.0/24
37.156.96.0/22
37.156.148.0/22
37.156.168.0/22
37.156.174.0/24
37.156.208.0/22
37.156.244.0/24
37.159.0.0/16
37.176.0.0/13
37.186.128.0/17
37.200.80.0/22
37.202.16.0/21
37.203.224.0/20
37.205.128.0/17