Works great – Subnet Mask Calc Review

it calculates all the basics u need to know. It's free and has all the stuff as the paid ones (broadcast address, 1st address./last address, mask bits, # of hosts) . It would be better if it listed the subnet bits and host bits and the /#, but I'm just being lazy. That's easily figured out. Great app considering it's free
Review by Chi-town monster on Subnet Mask Calc.