Abstract: Systems, Devices, and Methods are disclosed for modifying access list for a cellular phone operating remotely on cellular network. In some embodiments, the cellular device will send signal environment information to a server device identifying characteristic about the networks on which it is operating. The server device performs optimizations on aggregated data to determine an updated access list, which is subsequently sent to the cellular device for application. Over time, the efficacy of the aggregated data improves as additional cellular devices report signal environment information and the performance of updated access list is quantified. In some embodiments, the access list is wrapped in an access policy, which may include application rules enabling to cellular device to determine, based on context, at time at which the updated access list should be applied. In some embodiments, the cellular device sends notification to the server device when an updated access list is applied.