Providing for detection of a missed mobile paging event, storing data associated with an initiating mobile device as a result of such event, and updating an undelivered call indicator (UDCI) for notification of at least an undelivered call count is described herein. Components can include a gateway routing component that can receive a communications request for a target mobile device, a data storage component that can store information related to an initiating mobile device where the target is deemed unavailable, and a UDCI component facilitating data aggregation related to the undelivered call count. The UDCI data can be selectively provided to independent of the stored information related to an initiating mobile device. The system can thus notify a user of the presence and count of stored information related to initiating mobile devices independent of the user's prior unavailability.