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 172.217.12.0/20
First IP Address in Range: 172.217.0.0
Last IP Address in Range: 172.217.27.255
Number of IP addresses: 7167

Convert IP Addresses to CIDRs | Convert CIDR to IP Addresses | Search for IP Addresses in a CIDR