using System;

using PhoneNumbers;

public class Program

{

    public static void Main()

    {

        var phoneNumberUtil = PhoneNumberUtil.GetInstance();

        var countryCode = "US";

        var phoneNumber = phoneNumberUtil.Parse("+16196866272", null);

        phoneNumber = phoneNumberUtil.Parse("6196866272", "US");

        Console.WriteLine(phoneNumberUtil.IsValidNumber(phoneNumber));

        Console.WriteLine(phoneNumberUtil.Format(phoneNumber, PhoneNumberFormat.E164));

        Console.WriteLine(phoneNumber.NationalNumber.ToString());

        Console.WriteLine(phoneNumberUtil.Format(phoneNumber, PhoneNumberFormat.NATIONAL));

        Console.WriteLine(phoneNumberUtil.FormatNumberForMobileDialing(phoneNumber, countryCode, true));

    }

}