CIDRFromIP.com
Convert IPs to CIDRs
Convert CIDR to IPs
Search for IP in a CIDR
Convert CIDR to IP Addresses
Enter an IPV4 CIDR (example: 192.168.2.0/24)
IP Address Range for 10.168.100.222/3
First IP Address in Range: 0.0.0.0
Last IP Address in Range: 42.168.100.221
Number of IP addresses: 715678941