A system and method for detecting and storing information regarding a mobile communications device within a mobile communications network. Initially, a first data record is received at a subscriber/device database comprising subscriber/device data. Next, a second data record is received at the subscriber/device database comprising additional subscriber/device data. A first data record of a subscriber may then be compared to a second data record of the same subscriber, and if the first data record is different from the second data record a service provider may be notified.