| Code | Description |
|---|
| 04Q | Tradewind Aviation |
| 09Q | Swift Air, LLC d/b/a Eastern Air Lines d/b/a Eastern |
| 0GQ | Inter Island Airways, d/b/a Inter Island Air |
| 0JQ | Vision Airlines |
| 0WQ | Avjet Corporation |
| 1AQ | Via Airlines d/b/a Sterling Airways |
| 1BQ | Eastern Airlines f/k/a Dynamic Airways, LLC |
| 1DQ | Island Airlines LLC |
| 1EQ | KaiserAir, Inc. |
| 1I | Sky Trek International Airlines |
| 1YQ | Air Charter, Inc d/b/a Air Flamenco |
| 20Q | Orange Air |
| 23Q | Songbird Airways Inc. |
| 27Q | Jet Aviation Flight Services, Inc. |
| 2E | Smokey Bay Air Inc. |
| 2F | Frontier Flying Service |
| 2HQ | Elite Airways LLC |
| 2JQ | Delux Public Charter LLC |
| 2LQ | Tropic Ocean Airways LLC |
| 2NQ | LIMA NY Corp d/b/a Fly The Whale |
| 2O | Island Air Service |
| 2TQ | Trans Northern Airways d/b/a Air Unlimited Charter Services |
| 34Q | Polaris Aviation Solutions, LLC |
| 37Q | Hillwood Airways, LLC f/k/a ATX Air Services, LLC |
| 3BQ | Nealco Air Charter Services, Inc. d/b/a Watermakers Air |
| 3EQ | Scott Aviation, LLC d/b/a Silver Air |
| 3F | Pacific Airways, Inc. |
| 3FQ | Western Air Charter, Inc. d/b/a Jet Edge |
| 3M | Silver Airways |
| 4B (1) | Olson Air Service |
| 4S (1) | Conner Air Lines Inc. |
| 4W | Warbelow |
| 4Y (1) | Yute Air Aka Flight Alaska |
| 5J (1) | Private Jet Expeditions |
| 5V | Tatonduk Outfitters Limited d/b/a Everts Air Alaska and Everts Air Cargo |
| 5X | United Parcel Service |
| 5Y | Atlas Air Inc. |
| 6C | Cape Smythe Air Service |
| 6F (1) | Laker Airways Inc. |
| 7H | NEW PACIFIC AIRLINES |
| 7S | Ryan Air f/k/a Arctic Transportation |
| 8C | Air Transport International |
| 8D | Dynamic Aviation, Inc. d/b/a Beacon |
| 8E | Bering Air Inc. |
| 8N | Flagship Airlines Inc. |
| 8V | Wright Air Service |
| 9E | Endeavor Air Inc. |
| 9K | Cape Air |
| 9L | Colgan Air |
| 9R | Flagship Express Services |
| 9S | Southern Air Inc. |
| 9X | Southern Airways Express, dba Mokulele Airlines |
| AA | American Airlines Inc. |
| AAT | Air Sunshine Inc. |
| ABX | ABX Air Inc |
| AJQ | Aerodynamics Inc. d/b/a SkyValue d/b/a SkyValue Airways |
| AKQ | Airmark Airlines Inc. |
| AL | Skyway Airlines |
| AMQ | Ameristar Air Cargo |
| AN | ADVANCED AIR, LLC |
| AQ | Aloha Airlines Inc. |
| AS | Alaska Airlines Inc. |
| AX | Trans States Airlines |
| B6 | JetBlue Airways |
| BF (1) | Markair Inc. |
| BFQ | Buffalo Airways Inc. |
| BNQ | NetJets Large Aircraft Company L.L.C. |
| BUQ | Wrangler Aviation Inc. |
| C5 | CommuteAir LLC dba CommuteAir |
| CDQ | Kitty Hawk International |
| CO | Continental Air Lines Inc. |
| CP (2) | Compass Airlines |
| CPQ | Capitol Air Express Inc. |
| CS | Continental Micronesia |
| CTQ | Custom Air Transport |
| DH | Independence Air |
| DL | Delta Air Lines Inc. |
| E0 | EOS Airlines, Inc. |
| E8 | USAfrica Airways Inc. |
| E9 (1) | Boston-Maine Airways |
| EA | Eastern Air Lines Inc. |
| EE | Eastern Airlines Group Inc. |
| EM | Empire Airlines Inc. |
| ER | Astar USA, LLC |
| EV | ExpressJet Airlines LLC d/b/a aha! |
| EZ | Evergreen International Inc. |
| F2 | Omega Air Holdings d/b/a Focus Air |
| F8 | Freedom Airlines d/b/a HP Expr |
| F9 | Frontier Airlines Inc. |
| FCQ | Falcon Air Express |
| FDQ | Great American Airways |
| FE | Primaris Airlines Inc. |
| FF | Tower Air Inc. |
| FL | AirTran Airways Corporation |
| FNQ | Fine Airlines Inc. |
| FRA | Freedom Air |
| FX | Federal Express Corporation |
| G4 | Allegiant Air |
| G7 | GoJet Airlines LLC d/b/a United Express |
| GCA | Global Crossing Airlines, Inc. |
