United Airlines

United Airlines is expanding its network-operations facility in Arlington Heights, buying an office building that once was home to Motorola’s wireless-network equipment business.

United bought a 205,000-square-foot building at 1421 W. Shure Drive to provide more space for its network-operations centers, which moved out of the airline’s headquarters at Willis Tower last year after flooding knocked out power and caused it to evacuate flight dispatchers to a backup facility at its former headquarters in Elk Grove Village.