IP subnet calculator

151.80.18.0-151.80.26.255

151.80.18.0-151.80.19.255
151.80.18.0/23

151.80.20.0-151.80.23.255
151.80.20.0/22

151.80.24.0-151.80.25.255
151.80.24.0/23

151.80.26.0-151.80.26.255
151.80.26.0/24