Provided is a method for representing an identifier (e.g., primary account number (PAN)) of a customer with a sequence of words. The method may include dividing the identifier (e.g., PAN) of a customer into a plurality of subsets of digits. A respective word from a database of words may be determined for each respective subset of digits of the plurality of subsets of digits. The respective words for the plurality of subsets of digits may be combined into a sequence of words. The sequence of words may be provided to a customer device of the customer. A system and computer program product are also disclosed.