Subby app for iPhone and iPad


4.6 ( 8256 ratings )
Utilities Reference
Developer: Joe Lewis
Free
Current version: 1.2, last update: 6 years ago
First release : 01 Apr 2010
App size: 3.63 Mb

A simple IPv4 subnet cheat sheet/calculator.

Has a list of prefix lengths & netmasks which drills down to the possible ranges for each one.

Written as I find this more useful than a traditional subnet calculator.