A mobile device may perform actions based on sensing a wireless beacons. The action to take, for a particular beacon, may be determined based on a query to a remote database or server. For example, in one implementation, a method may include detecting a wireless beacon that is in proximity to the mobile device; querying, based on the beacon identifier, a remote computing device for attribute information relating to the wireless beacon; and determining, based on the received attribute information, one or more actions to perform by the mobile device.