public static void Main()
string telefoneCompleto = FormatarTelefone("1132053755");
string ddd = telefoneCompleto.Substring(0, 2);
string telefone = telefoneCompleto.Substring(telefoneCompleto.Length - 9);
Console.WriteLine("DDD:" + ddd);
Console.WriteLine("TELEFONE:" + telefone);
public static string FormatarTelefone(string str)
StringBuilder sb = new StringBuilder();
str = str.Replace("+55", "");
if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '.' || c == '_')
if (sb.ToString().StartsWith("0"))
return sb.ToString().PadLeft(11, '9');
return sb.ToString().Substring(0,2) + sb.ToString().PadLeft(9, '9');