It was inactivated on 1 April 1966 PhADS was established in June 1959 assuming control of former ADC Western Air Defense Force units in Arizona; southwestern California; southern Nevada and southwestern Utah.

On 15 June the new Semi Automatic Ground Environment (SAGE) Direction Center (DC-21) became operational.

The day-to-day operations of the command was to train and maintain tactical flying units flying jet interceptor aircraft (F-94 Starfire; F-102 Delta Dagger; F-106 Delta Dart) in a state of readiness with training missions and series of exercises with SAC and other units simulating interceptions of incoming enemy aircraft.

The Sector was inactivated on 1 April 1966 as part of an ADC consolidation and reorganization; then redesignated as 27th Air Division.

This article incorporates public domain material from the Air Force Historical Research Agency