; Defunct real-world airlines (that no longer have a valid ICAO code)
;
_2T Canada 3000
_AN Ansett Australia Airlines
_AR Armenian Airlines
_BB Balair
_BN Braniff
_BX Pacific Southwest Airlines
_CA Canadian Airlines
_CP Canadian Pacific
_EA Eastern Airlines
_EV Evergreen International Airlines
_FT Flying Tigers
_FU Air Littoral
_IK Tradewinds
_IW AOM French Airlines
_NC North Central Airlines
_RP Republic Airlines
_SL Southeast Airlines
_SO Sobelair
_SP Spantax
_TW TWA

; Fictonal airlines
;
_AD Air Canadian
_AF American Flight Airways
_AP Air Puertorico
_AS Atlantic Sun Airways
_AT AeroTexas Aviation International
_AV Altair Virtual
_AZ Aztec Airways
_CC Canada Charters and Cargo
_CD Cascade Virtual Airlines
_CY Cyber Air
_DL Dolphin Air
_EM Emerald Airlines
_ES Eurostar Virtual Airlines
_FF Tower Air
_GE German Air Express
_IF IFC Virtual Airlines
_JB JBH Airlines
_KA Kad-Air Virtual
_KS Kszersz Air
_KV Korean Virtual Airways
_LW Livewire Airlines
_LZ Leipzig Airlines
_MA America Airways
_NB Noble Airlines
_OA Olympic Airways Virtual
_OV Ozark Virtual
_PA Pacific Airways
_PC Poland Cargo
_PD Pacific Direct Airlines
_PS Pacific Southwest Airlines
_PW Pacific West Airways
_PX Phoenix Virtual Flight Services
_SA Scot Air
_SG Aegean Seagull
_SK Southern Sky Aviation
_SN Skyline
_SY SkyEast Airlines
_UD UK Direct
_WA Westair Airlines
_WK Weekend Air
_WT World Travel Airlines
_WW Westwind Airlines
_YM Compass Airlines

_CY Cyber Air
_SV Stevens Airlines
_SC Stevens Cargo
