Embodiments are provided for processing voice communication requests intended for a destination electronic device connected to an on-board communications network. According to certain aspects, a server may receive a request for a routing number and provide the routing number to a service provider network. The server may also identify an identification of a destination electronic device included in a voice communication request, modify the voice communication request to indicate the identification of the destination electronic device, and transmit, to an on-board communications network for delivery to the destination electronic device, a communication according to the voice communication request that was modified.