IP subnet calculator

112.215.144.0-112.215.158.255

112.215.144.0-112.215.151.255
112.215.144.0/21

112.215.152.0-112.215.155.255
112.215.152.0/22

112.215.156.0-112.215.157.255
112.215.156.0/23

112.215.158.0-112.215.158.255
112.215.158.0/24