/**
* Given a valid short number, determines whether it is carrier-specific (however, nothing is
* implied about its validity). If it is important that the number is valid, then its validity
* must first be checked using {@link isValidShortNumber}.
*
* @param number the valid short number to check
* @return whether the short number is carrier-specific (assuming the input was a valid short
* number).
*/
public boolean isCarrierSpecific(PhoneNumber number)
{
List <String> regionCodes = phoneUtil.getRegionCodesForCountryCode(number.getCountryCode());
String regionCode = getRegionCodeForShortNumberFromRegionList(number, regionCodes);
String nationalNumber = phoneUtil.getNationalSignificantNumber(number);
PhoneMetadata phoneMetadata = MetadataManager.getShortNumberMetadataForRegion(regionCode);
return((phoneMetadata != null) &&
(phoneUtil.isNumberMatchingDesc(nationalNumber, phoneMetadata.getCarrierSpecific())));
}
