IP Mask Calculator

* "Simply Elegant" -SMC * "Nicelly done, that's exactly what I need. I use it for my CCNA preparation" -Jason Ming This IP Subnet Mask Calculator is designed for Network Engineer that need to calculate or verify the ip mask, hosts range, broadcast ip, etc. Handles truly like a calculator with keys and display in a single view, all the values updates in real time as you increase or decrease the mask bit. AN EASY, SIMPLE, MUST HAVE APP FOR IT PROFESSIONALS !! Features: - Easy edit with custom keyboard - Entry validation with sound feedback - Class A,B,C,Reserved - Display realtime IP mask, first last host, network IP and broadcast IP - Subnetting and Supernetting - Decimal, Binary and Hexadecimal - Results are formatted and ready to be emailed for report or printing  BONUS: - Fetch IP address registration information from IANA.org database using whois protocol.