A method for at least one service provider to collect wireless communication unit location related data for multiple mobile network operators, MNOs. The method comprises, at a base station supporting multiple MNOs: broadcasting on a first frequency only a first public land mobile network identifier, PLMN-ID, of a first MNO at a first instant in time for detection by first wireless communication units associated with the first MNO; receiving location related information from the first wireless communication units associated with the first MNO in response to the broadcast first PLMN-ID; broadcasting on a second frequency only a second PLMN-ID of a second MNO, at a second instant in time for detection by second wireless communication units associated with the second MNO; and receiving location related information from the second wireless communication units associated with the second MNO in response to the broadcast second PLMN-ID.