Abstract: Service Access Codes (SACs) are special codes that are part of the standard North American Numbering Plan (NANP). A messaging address system and method for facilitating interaction between mobile subscribers and message-based applications. A communications network; and a message center system coupled to the communications network. The message center system comprises a processor configured to: associate destination addresses with corresponding data network addresses; said destination addresses formatted in accordance with a standard non-geographic numbering and administration plan, receive a mobile-originated message generated by a subscriber wireless device; the destination is formatted in accordance with the Numbering Plan (NANP) service access code (SAC) format.

Abstract: A system and method to enable a user to initiate a communication with an organization using a mobile communication device by means of a trigger system. A system and method to enable an organization to acquire a user mobile device address by means of a trigger system. A system and method to enable an organization to respond to a user by means of a trigger system and a message application server. A system and method to enable organizations to deliver mobile messages, coupons, offers and promotions to users mobile device by means of a combination of a trigger system, a message application server and an offer application.