A first server may: receive, from a second server, a request for location information associated with a first user device having a first identifier and a second identifier, or a request for information to identify one or more second user devices located in a particular geographic area; determine the second identifier based on information stored by the first server mapping the second identifier to the first identifier; provide, to the third server, the second identifier to request the location information associated with the second identifier; receive the location information associated with the second identifier; and provide, to the second server, the location information associated with the user device based on receiving the location information. The first server may provide information regarding the geographic area to the third server to receive the information identifying the one or more user devices in the geographic area.