Online Subnet Calculator

This is the most simple, faster and straightforward subnet calculator. It provides complete list of information concerning an IP address and Subnet Mask.

Results of the subnet calculation also provide the decimal and hexadecimal host addresses, broadcast address, number of addresses in network, network bits, usable range and even a wildcard mask for creating access-lists.

If you are looking for classless inter-domain routing (CIDR) calculator, please use the CIDR Calculator. For simple ACL (Access Control List) wildcard mask calculations, please use the Wildcard Mask Calculator.

First Octet Range 192 - 223
Host address
Host address (decimal) 3232235777
Host address (hex) C0A80101
Subnet ID
Network class C
Network mask
Network mask (hex) FFFFFF00
Broadcast address
Cisco wildcard
Addresses in network 256
Network range -
Usable range -
Network address bitmap 11000000.10101000.00000001.00000000
Network mask bitmap 11111111.11111111.11111111.00000000