RTH Country Centre Date \d\d\d\d/\d\d/\d\d Category Essential Additional ICAO Other TTAAii [A-Z][A-Z][A-Z][A-Z]([0-9][0-9])? CCCC [A-Z][A-Z][A-Z][A-Z] CodeForm TimeGroup AsNeeded as needed Stations unresolved VOLA CCCC Resolution Param Level FT West East South North Parent Remarks MetadataContact DataContact RTH Key Role Organization Telephone Facsimile Address City Area Country Postcode email web