IP Subnet Calculator

Credits: Andy Povey.
Thanks to Andy Povey for developing and providing the source code for this IP subnet calculator.

This is a more straightforward and faster IP subnet calculator, giving you a complete list of information concerning an IP address and Subnet Mask, including the Network and Host address size.

		Enter IP Address and Subnet Mask			Results
		IP Address			Start Host Address
		Subnet Mask			End Host Address
					Max No. of Hosts
					Network Address
		Additional Information To determine range in which an IP address falls enter address and subnet mask (as dotted decimals) in fields above and press "Calculate". (Requires a version 4.x browser or higher)
					Broadcast Address
					Network Class
					Network Address Size	Bits
					Host Address Size	Bits

IP Subnet Calculator - SubnetOnline.com