IsMobileValid
For Philippine mobile code but can also be adjusted based on your mobile network code. Check if the given number is a valid formatted international number.
Source
using System.Text.RegularExpressions;
public static class MyExtension
{
public static bool IsValidMobile(this string number)
{
bool bFound = false;
try
{
bFound = Regex.IsMatch(number, @"\A\+\b(639)[012]{1}[0-9]{1}[0-9]{3}[0-9]{4}\b\Z");
}
catch (ArgumentException)
{
}
return bFound;
}
}Example
Console.WriteLine("Valid Mobile: +639203782321:\t{0}", "+639303782321".IsValidMobile());