IPv4 Address and Subnet в Android Market

IPv4 Address and Subnet (v. 1.0) Разработано Prakash Jayaraman

Calculates information about the IPv4 address space, given an IPv4 address and its subnet. Output of the calculations may be saved to a file on SD-card or copied to clipboard to paste to other applications. Only IPv4 addresses are supported. IP addresses and subnets may be entered in dotted, hex or ip/subnet formats.