IP subnet calculator

89.142.0.0-89.143.199.255

89.143.0.0-89.143.127.255
89.143.0.0/17

89.143.128.0-89.143.191.255
89.143.128.0/18

89.143.192.0-89.143.199.255
89.143.192.0/21

89.142.0.0-89.142.255.255
89.142.0.0/16