Phoenix Six was the designation assigned to a member of Phoenix Squadron, which itself was an A-wing squadron involved in the initial rebellion against the Galactic Empire; this callsign was used by Lieutenant Dicer soon after the rebels created a base on the planet Atollon.
During an aerial battle against TIE/ln space superiority starfighters, Kay Karno utilized the Phoenix Six callsign when her RZ-1 A-wing interceptor sustained damage.