ICAO Airline Designator & Telephony
GRANT AVIATION, INC. (ANCHORAGE, AK)
SKY LEASE I, INC. (GREENSBORO, NC)
BLUE RIDGE AERO SERVICES
UNITED STATES DEPARTMENT OF TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, FLIGHT INSPECTION SERVICES (OKLAHOMA CITY, OK)
S.P. AVIATION (HAYWARD, CA)
SAN CARLOS FLIGHT CENTER
