and airfield on Diego Garcia with runways 2,440-3,659 m: 1 with runways over 3,659 m: 2 with runways 2,440-3,659 m: 18 with runways over 3,659 m: 0 with runways 2,440-3,659 m: 1 with runways 1,220-2,439 m: 6 Telecommunications: highly