Methods to improve and optimize de-registration procedures with access and mobility management function (AMF)

A system having a processor configured for executing computer-executable instructions for deregistering a user equipment (UE) during a transition between a first mobile domain and a second mobile domain. A data store is paired with the processor being configured for storing UE data, the UE data comprising one or more of the following: customer profile information, customer authentication information, and encryption keys for the information. A connection controller is configured for managing all connection and session related information from the UE. Upon detecting the UE is transitioned from the first mobile domain to the second mobile domain, the processor is configured to send a data packet to the connection controller to deregister the UE. Absent a confirmation message from the connection controller, the processor is configured to deregister the UE.