| 1 | TNC | National Aviation Consultants Ltd. | Callsign: Natcom, | CDN | AVCODES |
| 2 | TNC | Transcancun Services, S.A. de C.V. | Callsign: Transcancun, | MEX | AVCODES |
| 3 | TNC | National Aviation Consultants | | | ICAO1 |
| 4 | TNCA | TRANSPORT NORMAND CHARLEBOIX INC | | | SCAC4 |
| 5 | TNCC | TITAN CLEAN ENERGY PROJECTS CORPORA | | | SCAC4 |
| 6 | TNCD | TRANSCEND INC | | | SCAC4 |
| 7 | TNCI | TRANSPORT NORVINIC INC | | | SCAC4 |
| 8 | TNCL | TRANSTITAN LLC | | | SCAC4 |
| 9 | TNCM | TRANSPORT CLEMAX INC | | | SCAC4 |
| 10 | TNCO | TRES NACIONES SISTEMA DE FLETES INT | | | SCAC4 |
| 11 | TNCP | TOWN & COUNTRY PETROLEUM MARKETING | | | SCAC4 |
| 12 | TNCQ | TRANSPORTES INTERNACIONALES IR SA D | | | SCAC4 |
| 13 | TNCS | TENACITY SHIPPING LIMITED | | | SCAC4 |
| 14 | TNCU | TAIYO NIPPON SANSO CORPORATION | | J | BIC |
| 15 | TNCU | TAIYO NIPPON SANSO CORPORATION | | | SCAC4 |
| 16 | TNCX | North American Car Corp. | added 7/1965; 7/1965-1/1980; eliminated 1/1984 | | NAKINA |
| 17 | TNCX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 1/2000 | | NAKINA |
| 18 | TNCX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 19 | TNCX | North American Car Corp. | added 7/65; 7/65-1/80 | | NRHS |
| 20 | TNCX | General Electric Railcar Services Corp. | 1/94; eliminated 1/2000 | | NRHS |
| 21 | TNCX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 22 | TNCX | (NATX) GENERAL ELECTRIC RAIL SERVICES CORP. - THE NESTLE CO. - LESSEE [N. AMERICAN CAR CORP.] | | | PWRC |
| 23 | TNCX | North American Car Corp (GE Rail Services) | | | RSRV |
| 24 | TNCX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
