Utility app to query the wireless infrastructure in use The Elfin Network Utility is a utility app that queries wireless infrastructure information in use. Elfin Network Utility provides the following functions. (1) Inquiry of wireless infrastructure information in use   -You can check base station information, WiFi in use, IP address, and network connection status. (2) GPS location information inquiry   -You can check GPS location information such as latitude, longitude, and altitude. (3)