# PhoneNumberToCarrierMapper The Phone Number Carrier Mapper requires the PHP [intl](http://php.net/intl) extension. ## Getting Started As with [PhoneNumberUtil](PhoneNumberUtil.md), the Phone Number Carrier Mapper uses a singleton. ```php $carrierMapper = \libphonenumber\PhoneNumberToCarrierMapper::getInstance(); ``` ## `getNameForNumber()` Returns the name of the carrier for the supplied `PhoneNumber` object within the `$language` supplied. ```php $chNumber = \libphonenumber\PhoneNumberUtil::getInstance()->parse("798765432", "CH"); var_dump($carrierMapper->getNameForNumber($chNumber, 'en')); // string(8) "Swisscom" ``` ## `getNameForValidNumber()` Returns the same as `getNameForNumber()` without checking whether it is a valid number for carrier mapping. ## `getSafeDisplayName()` Returns the same as `getNameForNumber()`, but only if the number is safe for carrier mapping. A number is only validate for carrier mapping if it's a Mobile or Fixed line, and the country does not support Mobile Number Portability.