| 1 | CRE | Cree Airways Corporation | Callsign: Cree Air, | CDN | AVCODES |
| 2 | CRE | Carre Aviation Ltd. | Callsign: Imedi, Ceased operations. | M | AVCODES |
| 3 | CRE | Phoenix Investors, LLC | Callsign: Cream City, Name changed to Jet Out, LLC. ICAO Designator changed from MYT. ICAO callsign changed from Mythic. | USA | AVCODES |
| 4 | CRE | Jet Out, LLC | Callsign: Cream City, Name changed from Phoenix Investors, LLC. ICAO Designator changed from MYT. ICAO callsign changed from Mythic. | USA | AVCODES |
| 5 | CRE | Cree Airways | | | ICAO1 |
| 6 | CRE | Consolidated Rail Corp. (Eastern Division) | 1/1980-7/2005 | | NAKINA |
| 7 | CRE | Consolidated Rail Corp. (Eastern Division) | 1/80-7/2000 | | NRHS |
| 8 | CRE | CONSOLIDATED RAIL CORP. (EASTERN DISTRICT) | | | PWRC |
| 9 | CRE | Consolidated Rail Corporation (Eastern District) | | | RSRV |
| 10 | CREA | CARRERA SERVICES | | | SCAC3 |
| 11 | CREB | CRETER, JAMES RAY | | | SCAC4 |
| 12 | CREC | CRESCENT EXPRESS, INC | | | SCAC3 |
| 13 | CRED | CROSSROADS TRANSPORTATION LLC | | | SCAC4 |
| 14 | CREE | CURRENT CARRIERS INC | | | SCAC4 |
| 15 | CREG | CREGER FREIGHT LINE INC | | | SCAC3 |
| 16 | CREH | CORPORATE EXPRESS | | | SCAC3 |
| 17 | CREI | CROWE, EVERETT LOREN | | | SCAC3 |
| 18 | CREI | CRUCES REGIONALES SA DE CV | | | SCAC4 |
| 19 | CREJ | CREAGER, JACK TRUCKING | | | SCAC3 |
| 20 | CREJ | C R ENTERPRISES | | | SCAC4 |
| 21 | CREK | CRUCES INTERNACIONALES LOZANO | | | SCAC4 |
| 22 | CREM | CREST-MAYFLOWER INTERNATIONAL INC | | | SCAC3 |
| 23 | CREN | C-RENTAL SERVICES INC | | | SCAC4 |
| 24 | CREO | CRESCENT WHARF & WAREHOUSE CO | | | SCAC3 |
| 25 | CREO | CASTILLO RODRIGUEZ, EPIFANIO | | | SCAC4 |
| 26 | CREP | CRESTON TRANSPORTATION INCORPORATED | | | SCAC3 |
| 27 | CREQ | CAROLINA CRANE CORPORATION | | | SCAC3 |
| 28 | CRER | COLE, R E TRUCKING CO INC | | | SCAC3 |
| 29 | CRES | CARL ENTERPRISES | | | SCAC3 |
| 30 | CRES | C & R EXPRESS LLC | | | SCAC4 |
| 31 | CRET | CRESTED BUTTE TRUCK LINE | | | SCAC3 |
| 32 | CRET | CRETE PLANTATIONS INC | | | SCAC4 |
| 33 | CREU | CANADIAN RETAIL SHIPPERS ASSOCIATION | | | PWRC |
| 34 | CREU | Canadian Retail Shippers Association | | | RSRV |
| 35 | CREU | CANADIAN RETAIL SHIPPERS ASSN | | | SCAC3 |
| 36 | CREW | CREWE TRANSFER | | | SCAC3 |
| 37 | CREX | Citicorp Railmark, Inc. | 1/1994-7/2005 | | NAKINA |
| 38 | CREX | Railmark | added 1/1989 | | NAKINA |
| 39 | CREX | Merchants Investment Co. | added 10/1962; 7/1965-1/1980; eliminated 1/1989 | | NAKINA |
| 40 | CREX | Consolidated Railway Equipment Co. | added 1/1956; 10/1957-4/1961; eliminated 10/1962 | | NAKINA |
| 41 | CREX | The Cincinnati Refrigerator Express, Inc. | 8/1920-7/1923 | | NAKINA |
| 42 | CREX | Consolidated Railway Equipment Co. | 10/57-4/61 | | NRHS |
| 43 | CREX | Merchants Investment Co. | 7/65-1/80; eliminated 1/89 | | NRHS |
| 44 | CREX | Railmark | added 1/89 | | NRHS |
| 45 | CREX | Citicorp Railmark, Inc. | 1/94-7/2000 | | NRHS |
| 46 | CREX | *CINCINNATI REFRIGERATOR EXPRESS, INC. | | | PWRC |
| 47 | CREX | *CONSOLIDATED RAILWAY EQUIPMENT CO. | | | PWRC |
| 48 | CREX | +CITICORP RAILMARK, INC. [MERCHANTS INVESTMENT CO.] | | | PWRC |
| 49 | CREX | Consolidated Railway Equipment (Citicorp Railmark) | | | RSRV |
| 50 | CREX | CITICORP RAILMARK INC | | | SCAC4 |
| 51 | CREX | Consolidated Railway Equipment (Citicorp Railmark) | | USA | TRAFFIC |
| 52 | CREY | CREASY TRUCKING INC | | | SCAC3 |
| 53 | CREY | COREY TRANSPORT | | | SCAC4 |
| 54 | CREZ | CANADIAN RETAIL SHIPPERS ASSOCIATION | | | PWRC |
| 55 | CREZ | Canadian Retail Shippers Association | | | RSRV |
