public function prettyMobile($fallback = '')
    {
        if (! isset($this->mobile)) {
            return $fallback;
        }

        $phoneUtil = PhoneNumberUtil::getInstance();
        try {
            $formattedNumber = $phoneUtil->parse($this->mobile, 'US');

            return $phoneUtil->format($formattedNumber, PhoneNumberFormat::INTERNATIONAL);
        } catch (\libphonenumber\NumberParseException $e) {
            return $this->number;
        }
    }