IP subnet calculator

104.20.61.0-104.20.68.255

104.20.61.0-104.20.61.255
104.20.61.0/24

104.20.62.0-104.20.63.255
104.20.62.0/23

104.20.64.0-104.20.67.255
104.20.64.0/22

104.20.68.0-104.20.68.255
104.20.68.0/24