ICAO Airline Designator & Telephony
UNITED STATES DEPARTMENT OF TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, FLIGHT INSPECTION SERVICES (OKLAHOMA CITY, OK)
LEASE-A-PLANE INTERNATIONAL (NORTHBROOK, IL)
WELCH AVIATION, INC. (ALPENA, MI)
CONOCOPHILLIPS CO.
RCS SERVICES LLC
MOONEY AIRCRAFT CORPORATION (KERRVILLE, TX)
