- WRB: 40 Mile Air
- AX: Aeron International
- ZV: Air Midwest
- ZW: Air Wisconsin Corp.
- RD: Airlift - Domestic
- AKS: Alaska Seaplanes
- HRZ: Allegheny Airlines
- PRV: Aloha Island Air
- SMS: American Eagle
- AES: Ameristar Air Cargo - SYS
- ASE: Arctic Circle
- AZE: Arizona Express
- EVS: Atalntic Southeast - SYS
- BKR: Baker Aviation
- BMJ: Bemidji Airlines
- BER: Bering Air
- GQ: Big Sky
- K9: Cape Air
- ZQ: Caribbean Sun - DOM
- CHA: Chautauqua Airlines
- LN: Colgan Air
- CM: Comair Inc.
- CMT: Commutair
- C3: Corporate Airlines
- FE: Eagle Canyon Airlines
- ELL: Ellis Air Taxi
- ET: ERA Aviation
- EX: Executive Airlines - DOM
- RU: Expressjet Airlines - DOM
- FCS: Falcon Air Express - SYS
- FRA: Freedom Air
- FRQ: Freedom Airlines D/B/A HP
- FS: Frontier Flying Service
- G7: GoJet Airlines
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- GCH: Grand Canyon Helicopters
- GT: Grant Aviation
- GLA: Great Lakes Aviation Ltd.
- TRI: Great Plains Airlines
- GA: Gulf Air Transport
- GLF: Gulfstream Intl
- HAG: Hageland Aviation
- QX: Horizon Air
- IAT: Iliamna Air Taxi
- DH: Independence Air
- INL: Inland Aviation
- WV: Island Air Hawaii
- KAT: KATMAI AIR
- KAH: Kenmore Air Harbor
- JF: L.A.B.
- LFS: Larry's Flying Service
- YV: Mesa Airlines - DOM
- XJ: Mesaba Airlines
- MIS: Miami Air - SYSTEM
- LA: Mountain Bird/Salmon Air
- NA: National - DOMESTIC
- N5: Nations Air - DOM
- NEW: New England Airlines Inc.
- NU: Northwest Seaplanes
- X9S: Omni Air Express - SYS
- OP: Orion - DOM
- QP: Space Aviation - SYS
- F3: Pacific Airways Inc.
- PA: Pan Am - DOMESTIC
- KS: Peninsula
- HNA: Piedmont Airlines
- E9: Pinnacle Airlines Inc.
- Z3: PM Air LLC
- PRH: Promec
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- VEE: PSA Airlines Inc.
- RW: Republic Airlines
- EWA: Rio Grande Air
- RY: Ryan Intl - DOM
- SEB: Seaborne Aviation
- SVA: Servant Air
- SHA: Shuttle America Corp.
- SKG: Skagway Air Service
- SYS: Kystar - DOM
- SKW: Skyway Airlines
- SEA: Skywest Airlines
- SKB: Smokey Bay Air
- SNK: Spernak Airway
- STAN: Tanana Air Service
- TQA: Taquan Air Service
- O4: Tradewind Aviation
- TX: Trans States Airlines
- T9S: Transmeridian - SYS
- U3S: USA 3000 Airlines - SYS
- U7S: USA Jet Airlines - SYSTEM
- VQ: Vieques Air Link
- VPJ: Vintage Props and Jet
- SWB: Warbelows Air Ventures
- WRD: Ward Air
- WG: Wings of Alaska
- WT: Wright Air
- YUT: Yute Air - Flight Alaska
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