Techniques for supporting positioning are described. In an aspect, positioning of mobile stations served by femto cells may be supported by having the femto cells transmit at least one identity used to differentiate the femto cells from other cells/sectors in a wireless network. The at least one identity may also convey certain information for the femto cells, which may be pertinent for positioning of the mobile stations. In one design, a femto cell may send the at least one identity assigned to the femto cell and the location of the femto cell to mobile stations as an aid for positioning. A mobile station may receive and forward the least one identity and the location of the femto cell to a location server. The mobile station and the location server may then perform positioning based on the at least one identity and the location of the femto cell.