| 1 | CTC | Corporacion Ejecutiva de Transporte Aereo, S.A. de C.V. | Callsign: Corp Ejecutiva, | MEX | AVCODES |
| 2 | CTC | C T C Air, S.A. | IATA: MW, Callsign: CTC, Designator MW recalled by IATA | E | AVCODES |
| 3 | CTC | CENTER FOR TRANSPORTATION | | | PWRC |
| 4 | CTC | CTC (Compagnie de Transports de Céréales | | FR | VKM |
| 5 | CTCA | CTC TRANSPORTATION INC | | | SCAC3 |
| 6 | CTCA | COLUMBIA TECHNOLOGIES LLC | | | SCAC4 |
| 7 | CTCC | COASTAL CAROLINA CARRIERS INC | | | SCAC3 |
| 8 | CTCD | CORONA TRUCKING CO INC | | | SCAC3 |
| 9 | CTCF | CITICAR LIMITED | | | SCAC3 |
| 10 | CTCG | CARTER, CHARLES H & SON INC | | | SCAC3 |
| 11 | CTCG | CTC LOGISTICS (L A) INC | | | SCAC4 |
| 12 | CTCH | CATTLE COACHES, INC | | | SCAC3 |
| 13 | CTCH | CRITICAL CHOICE INCORPORATED | | | SCAC4 |
| 14 | CTCI | COAST TRANSFER CO INC | | | SCAC3 |
| 15 | CTCJ | CENTRAL CONNECTICUT LIMOUSINE | | | SCAC3 |
| 16 | CTCJ | CAYTRANS BBC LLC | | | SCAC4 |
| 17 | CTCK | CAN-2 TRUCKING INC | | | SCAC4 |
| 18 | CTCL | CARROLL TRANSPORT COMPANY | | | SCAC3 |
| 19 | CTCL | CT TECH INC | | | SCAC4 |
| 20 | CTCN | COLLIER TRUCKING COMPANY INC | | | SCAC3 |
| 21 | CTCN | CUT TECHNOLOGIES CANADA LTD | | | SCAC4 |
| 22 | CTCO | CORE TRUCKING CO INC | | | SCAC3 |
| 23 | CTCO | CITY TO CITY TRANSPORTATION CORP | | | SCAC4 |
| 24 | CTCR | CITIZENS TRANSPORTATION OF CALIFORN | | | SCAC3 |
| 25 | CTCR | CONTAINER TRANSFER CORP | | | SCAC4 |
| 26 | CTCS | COAST TO COAST MOVING & STORAGE CO | | | SCAC3 |
| 27 | CTCS | C TRANSPORT CAPESIZE B V | | | SCAC4 |
| 28 | CTCT | C & T TRUCKING INC | | | SCAC3 |
| 29 | CTCT | COAST TO COAST TRANSPORTATION | | | SCAC4 |
| 30 | CTCU | TERMCOTANK SA | | CH | BIC |
| 31 | CTCU | CONTAINER TRADING CO. | | | PWRC |
| 32 | CTCU | Container Trading | | | RSRV |
| 33 | CTCU | CONTAINER TRADING COMPANY | | | SCAC3 |
| 34 | CTCU | TERMCOTANK SA | | | SCAC4 |
| 35 | CTCUM | Montreal Urban Community Transit Commission | | CDN | TRAFFIC |
| 36 | CTCV | CTC VAN LINES INC | | | SCAC3 |
| 37 | CTCV | CRISP CONTAINER COMPANY | | | SCAC4 |
| 38 | CTCW | CTC FORWARDING COMPANY INC | | | SCAC3 |
| 39 | CTCX | The CIT Group/Capital Finance, Inc. | added 7/2008 | | NAKINA |
| 40 | CTCX | Endasa, S.A. de C.V. | eliminated 4/1989; 1/1994-7/2005 (not listed) | | NAKINA |
| 41 | CTCX | General Electric Railcar Services Corp. | added 1/1984; eliminated 1/1986 | | NAKINA |
| 42 | CTCX | North American Car Corp. | added 4/1981; eliminated 1/1984 | | NAKINA |
| 43 | CTCX | California Tank Car Line, Inc. | added 7/1965; 7/1965-1/1980; eliminated 4/1981 | | NAKINA |
| 44 | CTCX | California Tank Car Line | eliminated 7/1965 | | NAKINA |
| 45 | CTCX | California Tank Car Line, Max Schulz, owner | 1/1946-4/1961 | | NAKINA |
| 46 | CTCX | California Tank Car Line | 1/1945 (not listed) | | NAKINA |
| 47 | CTCX | The Conewango Refining Co. | 8/1920-7/1930 | | NAKINA |
| 48 | CTCX | California Tank Car Line, Max Schulz, owner | 1/52-4/61 | | NRHS |
| 49 | CTCX | California Tank Car Line | eliminated 7/65 | | NRHS |
| 50 | CTCX | California Tank Car Line, Inc. | added 7/65; 7/65-1/80; eliminated 4/81 | | NRHS |
| 51 | CTCX | North American Car Corp. | added 4/81 | | NRHS |
| 52 | CTCX | General Electric Railcar Services Corp. | eliminated 1/86 | | NRHS |
| 53 | CTCX | Endasa, S.A. de C.V. | eliminated 4/89; 1/94-7/2000 | | NRHS |
| 54 | CTCX | *CONEWANGO REFINING CO. | | | PWRC |
| 55 | CTCX | *GE RAILCAR SERVICES CORP.{NORTH AMERICAN CAR CORP.; CALIFORNIA TANK CAR LINE} | | | PWRC |
| 56 | CTCX | *CENTER FOR TRANSPORTATION & COMMERCE | | | PWRC |
| 57 | CTCX | *(ENDX) ENDASA S.A. DE C.V. | | | PWRC |
| 58 | CTCX | +THE CIT GROUP/CAPITAL FINANCE, INC. | | | PWRC |
| 59 | CTCX | CIT Group | | | RSRV |
| 60 | CTCX | CALIFORNIA TANK CAR LINE INC | | | SCAC3 |
| 61 | CTCX | CIT GROUP/CAPITAL FINANCE INC, THE | | | SCAC4 |
| 62 | CTCY | CTLA LOGISTICS INC | | | SCAC4 |
| 63 | CTCZ | COOPER TIRE COMPANY | | | PWRC |
