Systems and methods for addressing pagers are described. The pagers are reprogrammable and can be assigned identifiers as required. Pagers may be automatically assigned one of a plurality of identifiers. Thereafter, the assigned identifier may form the basis of a unique network address that allows the pagers to communicate wirelessly with a network in order to receive information commands and pages. The assigned identifier is maintained on the pager and can be presented on a display for identification of the pager. The assigned identifier can be transmitted to the pager by a charging unit when the pager is connected to the charging unit and can be calculated using the location of a port at which the pager is connected to the charging unit.