online CIDR and IP subnet calculator : Check host

157.157.55.246-157.157.55.247
157.157.55.246/31

157.157.55.248-157.157.55.255
157.157.55.248/29

157.157.56.0-157.157.63.255
157.157.56.0/21

157.157.64.0-157.157.127.255
157.157.64.0/18

157.157.128.0-157.157.191.255
157.157.128.0/18

157.157.192.0-157.157.207.255
157.157.192.0/20

157.157.208.0-157.157.215.255
157.157.208.0/21

157.157.216.0-157.157.219.255
157.157.216.0/22

157.157.220.0-157.157.220.255
157.157.220.0/24

IP subnet calculator 157.157.55.246-157.157.220.255