North American Airlines
| Airlines | Code | Country |
| ABX Air Inc | GB | United States |
| Access Air | ZA | United States |
| Aeromar | BQ | United States |
| Air Alma | CP | Canada |
| Air Aruba | FQ | Aruba |
| Air Atlantic-A | 9A | Canada |
| Air Caribbean | C2 | Trinidad & Tobago |
| Air Canada | AC | Canada |
| Air Labrador | WJ | Canada |
| Air Nova | QK | Canada |
| Air South | WV | United States |
| Air Tran | FL | United States |
| Alaska Airlines | AS | United States |
| ALM Anitillean Airlines | LM | Netherlands Antilles |
| Aloha Airlines | AQ | United States |
| America West Airlines | HP | United States |
| American Airlines | AA | United States |
| American Trans Air | TZ | United States |
| Atlantic Coast Airlines | United States | |
| Austin Express | United States | |
| Bahamasair | UP | Bahamas |
| Bearskin Airlines | JV | Canada |
| Big Sky Airlines | GQ | United States |
| BWIA International | BW | Trinidad & Tobago |
| Calm Air | MO | Canada |
| Canadian | CP | Canada |
| Carnival Airlines | KW | United States |
| Cayman Airways | KX | Cayman Islands |
| CC Air Inc | ED | United States |
| Colgan Air | 9L | United States |
| COMAIR | OH | United States |
| Conquest Airlines | 5C | United States |
| Continental | CO | United States |
| Cubana | CU | Cuba |
| Delta | DL | United States |
| First Air | 7F | Canada |
| Frontier Airlines | F9 | United States |
| Hawaiian Airlines | HA | United States |
| jetBlue | United States | |
| Independence Air | United States | |
| LIAT | LI | Antuiga |
| Laker Airways | 6F | United States |
| Mesa Airlines | YV | United States |
| Mesaba Airlines | XJ | United States |
| Miami Air | GL | United States |
| Midwest Express | YX | United States |
| Northwest | NW | United States |
| Pan Am | PA | United States |
| Peninsula Airways | KS | United States |
| Pro Air | P9 | United States |
| Provincial Airlines | PB | Canada |
| Reno Air | United States | |
| Ryan Intl Airlines | 1I | United States |
| Song Airline | United States | |
| Southwest Airlines | WN | United States |
| Spirit Airlines | United States | |
| Sun Country Airlines | SY | United States |
| Sunjet Airlines | United States | |
| Tower Air | FF | United States |
| TWA | TW | United States |
| United | UA | United States |
| US | United States | |
| Vanguard Airlines | NJ | United States |
| WestJet Airlines | M3 | Canada |
| Wiggins Airways | United States | |
| World Airways | WO | United States |
