Cessna 340/340A
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 85; Flight Crew Total 21400; Flight Crew Type 400
Airspace Violation All Types
After receiving [flight] following with center; and in contact with PHX approach; I was descending for landing at CHD. When I reported airport in sight approach terminated radar coverage and said to contact CHD tower. Upon contacting the tower I was told to contact IWA tower for clearance through their airspace. Doing so IWA said I was already in their airspace. There was nothing said about any other aircraft in the area; I don't understand why approach did not hand me off to IWA Tower.
Cessna 340 pilot is instructed by Approach Control to call CHD Tower; however; the CHD Controller re-directs the pilot to call IWA for permission to cross IWA airspace. Pilot entered IWA airspace before contacting the tower.