code: public static Map<String, String> readPhoneRegionCodes(final String pphoneCountryCode,
        final Locale plocale) {
      return CreateClassHelper.readMapFromProperties(
          "PhoneRegionCode" + pphoneCountryCode + "Constants", plocale,
          "phoneRegionCodes" + pphoneCountryCode);
    }
docs: read phone region codes for one country.
  
  @param pphoneCountryCode country code of the phone number
  @param plocale language to create data for
  @return map of area code and area name