| 1 | FEC | Denver Express, Inc. | Callsign: Falcon Express, | USA | AVCODES |
| 2 | FEC | Denver Express | | | ICAO1 |
| 3 | FEC | Florida East Coast Ry. Co. | 1/1975-7/2005 | | NAKINA |
| 4 | FEC | Florida East Coast Ry. Co. | 1/75-7/2000 | | NRHS |
| 5 | FEC | FLORIDA EAST COAST RAILWAY | | | PWRC |
| 6 | FEC | Florida East Coast Railway | | | RSRV |
| 7 | FEC | Florida East Coast | | USA | TRAFFIC |
| 8 | FECA | FEDERATED CARTAGE | | | SCAC3 |
| 9 | FECC | FRESH EXPRESS - COLORADO INC | | | SCAC3 |
| 10 | FECD | FOLCOMER EQUIPMENT CORPORATION | | | SCAC4 |
| 11 | FECE | FELTY, CHARLES E | | | SCAC3 |
| 12 | FECF | FEC HIGHWAY SERVICES LLC (INTERMODA | | | SCAC4 |
| 13 | FECG | FLORIDA EAST CONTAINER INC | | | SCAC4 |
| 14 | FECH | FETCH INC | | | SCAC3 |
| 15 | FECI | FLORIDA EXPRESS CARRIER INC | | | SCAC3 |
| 16 | FECI | FOREVERGREEN LANDSCAPING | | | SCAC4 |
| 17 | FECL | FAIR EXCAVATING CO LTD | | | SCAC3 |
| 18 | FECL | FRIO EXPRESS CAVAZOS LEAL | | | SCAC4 |
| 19 | FECM | FARMERS ELEVATOR COMPANY OF ARTHUR | | | SCAC3 |
| 20 | FECN | FERME EQUESTRE DE LA CAPUCINE ENR | | | SCAC4 |
| 21 | FECO | FALCON EXPRESS CARGO LLC | | | SCAC4 |
| 22 | FECP | FEDERAL WAREHOUSE COMPANY | | | SCAC3 |
| 23 | FECP | FAIRVIEW DISTRIBUTION CENTERS INC | | | SCAC4 |
| 24 | FECQ | FEAGAN E C INC | | | SCAC3 |
| 25 | FECR | FAVORS EXPRESS COURIER | | | SCAC3 |
| 26 | FECS | FECS LINE | | | SCAC3 |
| 27 | FECT | FURNITURE CREATIONS | | | SCAC4 |
| 28 | FECU | FLEX BOX SA DE CV | | MEX | BIC |
| 29 | FECU | YAMASHITA-SHINNIHON LINE | | | PWRC |
| 30 | FECU | Yamashita-Shinnihon Line | | | RSRV |
| 31 | FECU | FLORIDA EAST COAST RAILWAY COMPANY | | | SCAC3 |
| 32 | FECU | FLORIDA EAST COAST RAILWAY COMPANY | | | SCAC4 |
| 33 | FECZ | *FARWELL ELEVATOR CO. | | | PWRC |
| 34 | FECZ | *FLORIDA EAST COAST RAILWAY | | | PWRC |
| 35 | FECZ | Florida East Coast Railway | | | RSRV |
| 36 | FECZ | FLORIDA EAST COAST RAILWAY COMPANY | | | SCAC4 |
| 37 | FECZ | Felbermayr Transport- und Hebetechnik, spol. S r.o. | | CZ | VKM |
