| 1 | ECU | Ecuavia Compania Limitada | Callsign: Ecuavia, | EC | AVCODES |
| 2 | ECU | Ecuavia | | | ICAO1 |
| 3 | ECUA | ECUATORIANA AIRLINES | | | SCAC4 |
| 4 | ECUD | ECUADORIAN LINES INC. | | | PWRC |
| 5 | ECUI | ECU LINE | | | SCAC4 |
| 6 | ECUK | E & C TRUCKING INC | | | SCAC4 |
| 7 | ECUL | ECU-LINE N V | | | SCAC3 |
| 8 | ECUL | ECU-LINE N V | | | SCAC4 |
| 9 | ECUN | ECU LINE USA LLC | | | SCAC3 |
| 10 | ECUN | ECU LINE U S A LLC | | | SCAC4 |
| 11 | ECUS | EXCLUSVIE COURIER SERVICE | | | SCAC3 |
| 12 | ECUU | ECOPRO-M LLC | | RUS | BIC |
| 13 | ECUU | TRANSECU FRIOSA | | | SCAC4 |
| 14 | ECUX | Exxon Mobil Corp. | added 7/2000; 7/2000-7/2005 | | NAKINA |
| 15 | ECUX | Exxon Chemical Americas | added 10/1981; 1/1994; eliminated 7/2000 | | NAKINA |
| 16 | ECUX | Exxon Chemical Co. U.S.A. | 1/1980; eliminated 10/1981 | | NAKINA |
| 17 | ECUX | Exxon Chemical Co. U.S.A. | 1/80; eliminated 10/81 | | NRHS |
| 18 | ECUX | Exxon Chemical Americas | added 10/81; 1/94; eliminated 7/2000 | | NRHS |
| 19 | ECUX | Exxon Mobil Corp. | added 7/2000; 7/2000 | | NRHS |
| 20 | ECUX | EXXON CHEMICAL AMERICAS (EXXON-MOBIL CORP.) | | | PWRC |
| 21 | ECUX | Exxon Chemical Americas (Exxon-Mobil Corporation) | | | RSRV |
| 22 | ECUX | EXXON MOBIL CORPORATION | | | SCAC4 |
| 23 | ECUX | Exxon Mobil Corp. | | USA | TRAFFIC |
