using System;

public class Program

{

    public static void Main()

    {

        byte[] ipArray = { 0x0A, 0x6D, 0x04, 0x0D }; // fetch from DB as byte[]

        System.Net.IPAddress ip = new System.Net.IPAddress(ipArray);

        String ipStr = ip.ToString(); // your dot-notation as String.

        Console.WriteLine(ipStr);

    }

}