Convert CIDR to IP Addresses

Enter an IPV4 CIDR (example: 192.168.2.0/24)

IP Address Range for 81.21.16.0/20
First IP Address in Range: 81.21.16.0
Last IP Address in Range: 81.21.31.255
Number of IP addresses: 4095
Show/Hide All IP Addresses in 81.21.16.0/20