DXXX is the roman numeral of 530. It may also refer to:
Aviation Lomé–Tokoin International Airport (ICAO code)
Media DXXX-AM, an AM radio station broadcasting in Zamboanga City, branded as Radyo Ronda DXXX-FM, an FM radio station broadcasting in Butuan City, branded as iFM DXXX-TV, a TV station broadcasting in Zamboanga City, branded as RPTV