| 1 | CRN | Empresa Aerocaribbean S.A. d/b/a Aero Caribbean | IATA: 7L, Callsign: Aerocaribbean, IATA Prefix: 164, Designator 7L recalled IATA. Designator 7L reinstated by IATA | C | AVCODES |
| 2 | CRN | Empresa Aerocaribbean S.A. d/b/a Aero Caribbean | Callsign: Aerocaribbean, Founded in 1983. Designator 7L recalled IATA. Designator 7L reinstated by IATA | C | AVCODES |
| 3 | CRN | Carson Air Ltd. | Callsign: Carson, | CDN | AVCODES |
| 4 | CRN | Empresa Aerocaribbean | | | ICAO1 |
| 5 | CRN | Norfolk Southern Ry. Co. (Norfolk Southern) | added 1/1991; 1/1994-7/2005 | | NAKINA |
| 6 | CRN | Southern Ry. System | eliminated 1/1991 | | NAKINA |
| 7 | CRN | Carolina & Northwestern Ry. Co. | 1/1975-1/1980 | | NAKINA |
| 8 | CRN | Carolina & Northwestern Ry. Co. | 1/75-1/80 | | NRHS |
| 9 | CRN | Southern Ry. System | eliminated 1/91 | | NRHS |
| 10 | CRN | Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | | NRHS |
| 11 | CRN | NORFOLK SOUTHERN [SOUTHERN] [CAROLINA & NORTHWESTERN RWY] | | | PWRC |
| 12 | CRN | Carolina and Northwestern Railway (Norfolk Southern) | | | RSRV |
| 13 | CRNA | CORINNA TRUCK EXPRESS | | | SCAC3 |
| 14 | CRNA | CORONA, JORGE LEON | | | SCAC4 |
| 15 | CRNB | CORNELL STEAMBOAT COMPANY | | | SCAC3 |
| 16 | CRNB | CRANE TRANSPORT INC | | | SCAC4 |
| 17 | CRNC | CARNIVAL COACHES | | | SCAC3 |
| 18 | CRND | CROWN TRANSPORT & DELIVERY SERVICE | | | SCAC3 |
| 19 | CRND | CANO GARCIA, REYNALDO | | | SCAC4 |
| 20 | CRNE | CORNELIUS TRANSFER & STORAGE CO | | | SCAC3 |
| 21 | CRNE | COOL RUNNINGS EXPRESS INC | | | SCAC4 |
| 22 | CRNF | CARON ET FILS TRANSPORT LTD | | | SCAC3 |
| 23 | CRNF | CARSON FARMS | | | SCAC4 |
| 24 | CRNG | CAMTRAN LTD | | | SCAC4 |
| 25 | CRNH | CROSS TRUCKING & STORAGE | | | SCAC3 |
| 26 | CRNH | CARNERO HERNANDEZ, JOSE | | | SCAC4 |
| 27 | CRNI | CRANDALL TRANSPORT | | | SCAC3 |
| 28 | CRNI | CONNORS REFRIGERATED TRANSPORT INC | | | SCAC4 |
| 29 | CRNK | CROWN CORK & SEAL COMPANY (INDIANA) | | | SCAC3 |
| 30 | CRNL | CRENLO INC | | | SCAC3 |
| 31 | CRNL | CRENLO LLC | | | SCAC4 |
| 32 | CRNM | CORNETT MOVING AND STORAGE | | | SCAC3 |
| 33 | CRNM | CARDINAL METAL INC | | | SCAC4 |
| 34 | CRNN | CRONIN, D J INC | | | SCAC3 |
| 35 | CRNN | CRONIN, D J INC | | | SCAC4 |
| 36 | CRNO | CHAPMAN, RON TRUCKING | | | SCAC3 |
| 37 | CRNP | CATHCART TRANSPORTS LIMITED | | | SCAC3 |
| 38 | CRNQ | CRITES AND SAILER CONSTRUCTION CO | | | SCAC3 |
| 39 | CRNR | CORNER STOP | | | SCAC4 |
| 40 | CRNS | CARONS EXPRESS, INC | | | SCAC3 |
| 41 | CRNT | CRESCENT TRUCK LINES, INC | | | SCAC3 |
| 42 | CRNU | PT INDONESIA RUIPI NICKEL AND CHROME ALLOY | | RI | BIC |
| 43 | CRNU | ORGANIZATION EUROPEENNE POUR LA | | | SCAC3 |
| 44 | CRNU | ORGANIZATION EUROPEENNE POUR LA | | | SCAC4 |
| 45 | CRNV | CARDINALI, V TRUCKING | | | SCAC3 |
| 46 | CRNV | CARNIVAL CRUISE LINES | | | SCAC4 |
| 47 | CRNW | CRESENT WAREHOUSE COMPANY INC | | | SCAC3 |
| 48 | CRNX | Coffeyville Resources Nitrogen Fertilizers, LLC | added 10/2004; 7/2005 | | NAKINA |
| 49 | CRNX | Coosa River Newsprint Co. | 1/1952-7/1954; eliminated 4/1955 | | NAKINA |
| 50 | CRNX | Consumers Refining Co. (Shaffer Oil & Refining Co.) | 8/1920 | | NAKINA |
| 51 | CRNX | Coosa River Newsprint Co. | 1/52; eliminated 4/55 | | NRHS |
| 52 | CRNX | *SHAFFER OIL & REFINING CO. [CONSUMERS REFINING CO.] | | | PWRC |
| 53 | CRNX | *COOSA RIVER NEWSPRINT CO. | | | PWRC |
| 54 | CRNX | +COFFEYVILLE RESOURCES NITROGEN FERTILIZERS, LLC | | | PWRC |
| 55 | CRNX | COFFEYVILLE RESOURCES NITROGEN FERT | | | SCAC4 |
