Abstract: The present disclosure generally relates to a system, comprising a mobile device configured to register with a service provider via an application program, obtain network credentials of communication networks operated by the service provider at various locations, connect to a communication network via the network credentials when approaching a selected location of the service provider, and transmit, to a first computing device via the communication network, a first identifier that uniquely identifies the mobile device. The system also comprises the first computing device positioned at service provider's locations and configured to receive and transmit the first identifier to a second computing device. The system also comprises the second computing device configured to receive the first identifier, compare the unique identifier to a plurality of unique identifiers, and provide a service customized to a user of the mobile device based at least upon the comparison result.