online CIDR and IP subnet calculator : Check host

54.145.243.228-54.145.243.231
54.145.243.228/30

54.145.243.232-54.145.243.239
54.145.243.232/29

54.145.243.240-54.145.243.255
54.145.243.240/28

54.145.244.0-54.145.247.255
54.145.244.0/22

54.145.248.0-54.145.255.255
54.145.248.0/21

54.146.0.0-54.146.63.255
54.146.0.0/18

54.146.64.0-54.146.67.255
54.146.64.0/22

IP subnet calculator 54.145.243.228-54.146.67.255