| 1 | EQL | Linhas Aereas de Air Sao Tome And Principe | IATA: KY, Callsign: Equatorial, IATA Prefix: 980, Designator KY recalled by IATA. Designator KY reinstated by IATA | STP | AVCODES |
| 2 | EQL | Equatorial Airlines of Sao Tome And Principe | Callsign: Equatorial, | STP | AVCODES |
| 3 | EQL | Air Sa~o Tomé and Príncipe | IATA: KY | | ICAO1 |
| 4 | EQLI | ECUADORIAN LINE INC | | | SCAC3 |
| 5 | EQLI | EXPRESS QUALITY LOGISTICS INC | | | SCAC4 |
| 6 | EQLP | EAGLE LOGISTICS SPOTTING | | | SCAC4 |
| 7 | EQLS | ESQUIRE LIMOUSINE SERVICE INC | | | SCAC3 |
| 8 | EQLS | EQUI-LINE PLUS | | | SCAC4 |
