ADO
FAA district or field office code.
Billings, MT
1901 Terminal Cir #8, Billings, MT 59105, USAFAA district or field office code.
Associated county (or parish) name.
Information effective date (mm/dd/yyyy).
Landing facility type. (ex. Airport, Balloonport, Seaplane Base, Gliderport, Heliport, Ultralight)
Location identifier unique 3-4 character alphanumeric identifier assigned to the landing facility. (ex. 'ORD' for Chicago O'Hare)
FAA region code.
Landing facility site number - a unique identifying number which, together with the landing facility type code, forms the key to the airport record. (ex. 04508.*A)
Associated state post office code standard two letter abbreviation for U.S. states and territories.
Associated state name.