| 1 | CNL | Centennial Airlines, Inc. | Callsign: Wyo-Air, | USA | AVCODES |
| 2 | CNL | Centennial Airlines | | | ICAO1 |
| 3 | CNL | Columbia, Newberry and Laurens R.R. Co. | 1/1975-1/1980; eliminated 1/1983 | | NAKINA |
| 4 | CNL | Columbia, Newberry and Laurens R.R. Co. | 1/75-1/80; eliminated 1/83 | | NRHS |
| 5 | CNL | COLUMBIA, NEWBERRY & LAURENS RAILROAD CO. | | | PWRC |
| 6 | CNL | Columbia, Newberry and Laurens Railroad (CSX Transportation) | | | RSRV |
| 7 | CNL | CityNightLine CNL AG | | CH | VKM |
| 8 | CNLA | C & L AUTO REPAIR | | | SCAC3 |
| 9 | CNLA | CANADIAN LOCAL | | | SCAC4 |
| 10 | CNLA | Columbia, Newberry and Laurens R.R. Co. | Real: CNL | USA | TRAFFIC |
| 11 | CNLB | CONTINENTAL TRANSPORTATION LTD | | | SCAC4 |
| 12 | CNLC | CAMBRIDGE LEE INDUSTRIES LLC | | | SCAC4 |
| 13 | CNLD | CONNER ENTERPRISES | | | SCAC3 |
| 14 | CNLE | CENTRANS TRUCK LINES INC | | | SCAC4 |
| 15 | CNLF | CENTER LINE INC | | | SCAC3 |
| 16 | CNLF | CANAAN INTERNATIONAL FREIGHT INC | | | SCAC4 |
| 17 | CNLG | CRANDALL MOVING & STORAGE INC | | | SCAC3 |
| 18 | CNLH | CONNELL TRANSPORT | | | SCAC4 |
| 19 | CNLI | CLINTON LEASING INC | | | SCAC3 |
| 20 | CNLJ | CONTINENTAL TERMINALS INC | | | SCAC3 |
| 21 | CNLJ | CONTINENTAL TERMINALS INC | | | SCAC4 |
| 22 | CNLK | C & L TRUCKING INC | | | SCAC3 |
| 23 | CNLL | CANTRELL, KEN TRUCKING | | | SCAC3 |
| 24 | CNLL | C & N LOGISTICS INC | | | SCAC4 |
| 25 | CNLM | CONNER LOGISTICS | | | SCAC4 |
| 26 | CNLN | CONLON MOVING AND STORAGE, INC | | | SCAC3 |
| 27 | CNLN | COUNTY LINE TRUCKING LTD | | | SCAC4 |
| 28 | CNLO | COLE, NELSON | | | SCAC4 |
| 29 | CNLP | CONTRAIL INTERNATIONAL INCORPORATED | | | SCAC3 |
| 30 | CNLQ | CONTRACT HAULERS INC | | | SCAC3 |
| 31 | CNLQ | CONSTELLATION | | | SCAC4 |
| 32 | CNLR | CENTRAL TRUCKING INC | | | SCAC3 |
| 33 | CNLR | CENTRAL TRUCKING INC | | | SCAC4 |
| 34 | CNLS | CLI TRANSPORT LP | | | SCAC4 |
| 35 | CNLT | C & L LIMITED | | | SCAC3 |
| 36 | CNLU | CUNARD LINE LTD | | | SCAC3 |
| 37 | CNLV | C & L TRUCKING INC | | | SCAC3 |
| 38 | CNLW | CONTINENTAL WESTERN TRANSPORTATION | | | SCAC3 |
| 39 | CNLW | CONTINENTAL WESTERN TRANSPORTATION | | | SCAC4 |
| 40 | CNLX | CN Treasury Operations Ltd. | added 4/2002; 7/2005 | | NAKINA |
| 41 | CNLX | CANAC International, Inc. | added 1/1993; 1/1994-7/2000; eliminated 4/2002 | | NAKINA |
| 42 | CNLX | Canat Ltd. | added 1/1989; eliminated 1/1992 | | NAKINA |
| 43 | CNLX | Canadian National Ry. Co. | added 1/1992; eliminated 1/1993 | | NAKINA |
| 44 | CNLX | Canat Ltd. | added 1/89; eliminated 1/92 | | NRHS |
| 45 | CNLX | Canadian National Ry. Co. | added 1/92; eliminated 1/93 | | NRHS |
| 46 | CNLX | CANAC International, Inc. | added 1/93; 1/94-7/2000 | | NRHS |
| 47 | CNLX | *CANAC INTERNATIONAL INC (CANADIAN NATIONAL RWY.) | | | PWRC |
| 48 | CNLX | +CN TREASURY OPERATIONS, LTD. | | | PWRC |
| 49 | CNLX | CANAC International | | | RSRV |
| 50 | CNLX | CN TREASURY OPERATIONS LIMITED | | | SCAC4 |
| 51 | CNLY | CONLEY, R, INC | | | SCAC3 |
