| 1 | NTL | Air Anatolia (Anadolu Havacilik A.S.) | Callsign: Air Anatolia, Name changed from GTI Havayollari A.S. Airloines, Inc. Ceased operations during 2002. Designator TD* recalled by IATA | TR | AVCODES |
| 2 | NTL | Northair Aviation Ltd. | IATA: NT, Callsign: Northair, Merged into Knight Air during 1990 | GB | AVCODES |
| 3 | NTL | GTI Havayollari A.S. Airlines, Inc. | IATA: TD, Callsign: Air Anatolia, Name changed to Air Anatolia (Anadolu Havacilik A.S.) | TR | AVCODES |
| 4 | NTL | Air Anatolia | | | ICAO1 |
| 5 | NTLA | NORWALK TRUCK LINES INC OF DELA | | | PWRC |
| 6 | NTLA | NORWALK TRUCK LINES INC | | | SCAC3 |
| 7 | NTLA | NOBLE DISTRIBUTION EAST LLC | | | SCAC4 |
| 8 | NTLC | NATONAL CARTAGE CO | | | SCAC3 |
| 9 | NTLD | NORWALK TRUCK LINES INC OF DELA | | | PWRC |
| 10 | NTLD | NOCS TRANSPORT LTD. | | | SCAC3 |
| 11 | NTLD | NOCS TRANSPORT LTD | | | SCAC4 |
| 12 | NTLE | NELSON TRUCK LINES | | | SCAC3 |
| 13 | NTLF | NATIONAL FREIGHT LINES | | | SCAC3 |
| 14 | NTLG | NOVO TRANSPORTATION LOGISTICS, Novo Enterprises, INC | | | SCAC3 |
| 15 | NTLG | NTL NAIGAI TRANS LINE (USA) INC | | | SCAC4 |
| 16 | NTLH | NADLER TRANSPORT LTD | | | SCAC4 |
| 17 | NTLI | NICKLAS TRUCK LINE | | | SCAC3 |
| 18 | NTLI | NATIONAL LOGISTICS INC | | | SCAC4 |
| 19 | NTLK | NOAHS TRANSPORTATION LLC | | | SCAC4 |
| 20 | NTLL | NUSTAR TRUCK LINES LTD | | | SCAC3 |
| 21 | NTLL | NEW TRANS LOGISTICS LLC | | | SCAC4 |
| 22 | NTLM | NATIONAL MOVING & STORAGE INC | | | SCAC3 |
| 23 | NTLN | NATIONAL TRANSPORTATION | | | SCAC4 |
| 24 | NTLO | N T & L | | | SCAC4 |
| 25 | NTLP | NTL INC | | | SCAC3 |
| 26 | NTLP | NKARGO TRUCKING LLC | | | SCAC4 |
| 27 | NTLQ | NATIONAL MOTOR FREIGHT | | | SCAC3 |
| 28 | NTLQ | NATIONAL MOTOR FREIGHT | | | SCAC4 |
| 29 | NTLR | NATIONAL TRAILER REPAIR | | | SCAC3 |
| 30 | NTLR | NORTHERN LITE MFG LTD | | | SCAC4 |
| 31 | NTLS | NEVADA TRUCK LINES INC | | | SCAC3 |
| 32 | NTLS | NATIONWIDE TRANSPORTATION AND LOGIS | | | SCAC4 |
| 33 | NTLT | NATIONAL TRUCKING COMPANY | | | SCAC3 |
| 34 | NTLU | NANTAI LINE CO. LTD. | | | SCAC3 |
| 35 | NTLX | O.E. Linsin, Inc. | added 7/1954; 7/1954; eliminated 10/1954 | | NAKINA |
| 36 | NTLX | Nashtex Leasing Inc. | 1/1994-7/2005 | | NAKINA |
| 37 | NTLX | Northern Tank Line Inc. | 1/1946-1/1952; eliminated 7/1954 | | NAKINA |
| 38 | NTLX | Northern Tank Line Inc. | Jan-52 | | NRHS |
| 39 | NTLX | Nashtex Leasing Inc. | 1/94-7/2000 | | NRHS |
| 40 | NTLX | *O.E. LINSIN, INC. [NORTHERN TANK LINE INC.} | | | PWRC |
| 41 | NTLX | +NASHTEX LEASING INCORPORATED | | | PWRC |
| 42 | NTLX | Nashtex Leasing | | | RSRV |
| 43 | NTLX | NASHTEX LEASING INCORPORATED | | | SCAC4 |
| 44 | NTLY | NATIVE TRAILS LLC | | | SCAC4 |
