IP subnet calculator

89.58.20.0-89.58.59.255

89.58.20.0-89.58.23.255
89.58.20.0/22

89.58.24.0-89.58.31.255
89.58.24.0/21

89.58.32.0-89.58.47.255
89.58.32.0/20

89.58.48.0-89.58.55.255
89.58.48.0/21

89.58.56.0-89.58.59.255
89.58.56.0/22