online CIDR and IP subnet calculator : Check host

212.129.20.231-212.129.20.231
212.129.20.231/32

212.129.20.232-212.129.20.239
212.129.20.232/29

212.129.20.240-212.129.20.255
212.129.20.240/28

212.129.21.0-212.129.21.127
212.129.21.0/25

212.129.21.128-212.129.21.135
212.129.21.128/29

212.129.21.136-212.129.21.137
212.129.21.136/31

212.129.21.138-212.129.21.138
212.129.21.138/32

IP subnet calculator 212.129.20.231-212.129.21.138