A system for determining the proximity of client devices to locations of interest is provided. The system includes a data server configured to receive data identifying a plurality of vehicles and associated vehicle locations and an input processor configured to process the received data to identify a plurality of locations of interest related to one or more assets. A database in operative communication with the data server is provided to store the locations of interest as information records. A notification server is provided to receive data identifying geographic locations of a plurality of client devices. An output processor is operatively coupled to the notification server and is configured to determine whether one or of more the client devices are within a predetermined proximity to one or more of the locations of interest. The output processor is further configured to generate a proximity alert when the one or more client devices are determined to be within the predetermined proximity to one or more of the locations of interest.