receiving, from an application processor of the wireless device, an early entry notification indicating a frequent location with a private cellular wireless network prior to entry to the frequent location;

activating a subscriber identity module (SIM) or electronic SIM (eSIM) associated with the private cellular wireless network;

performing a radio frequency scan for one or more cells of the private cellular wireless network based on search parameters specific to the private cellular wireless network;

attaching to a serving cell of the private cellular wireless network responsive to receipt of an attach accept message from the serving cell;

measuring a signal strength of the serving cell and providing, to the application processor of the wireless device, signal strength measurements to maintain a record of the signal strength correlated with location coordinates to characterize the serving cell;

receiving, from the application processor of the wireless device, an early exit notification indicating imminent exit from the frequent location; and

deactivating the SIM or eSIM associated with the private cellular wireless network responsive to receipt of the early exit notification.