Abstract: A method of running a telephony messaging (e.g., SMS) campaign directed at users in a plurality of countries is provided. An international messaging destination number is selected for the campaign and comprises an international country code for a particular country or region followed by a national destination number for that particular country or region. Users are invited to participate in the campaign by communicating the international messaging destination to the users in the format of an international direct dialing prefix followed by a string comprising at least one letter conventionally associated, on a standard telephone keypad, with at least one digit in the international country code of the international messaging destination number. A system and method for facilitating the widespread adoption of international destination numbers in telephony messaging campaigns and for sharing in the mobile network revenue associated with the message traffic generated by those campaigns is also disclosed.