| 1 | NTI | Aerocontinente Chile, S.A. | IATA: C7, Callsign: Continente, Designator C7* recalled by IATA. Designator C7* reinstated by IATA | RCH | AVCODES |
| 2 | NTIA | NEEDHAM TRUCKING INC | | | SCAC4 |
| 3 | NTIB | NORLING TRUCKING INC | | | SCAC4 |
| 4 | NTIC | NITE INC | | | SCAC3 |
| 5 | NTID | NUNEZ TRANSPORTATION INC | | | SCAC4 |
| 6 | NTIE | N T I EXPRESS | | | SCAC3 |
| 7 | NTIE | NINE ZERO TWO NINE-FOUR TWO FIVE SE | | | SCAC4 |
| 8 | NTIF | NAT TRANS INC | | | SCAC4 |
| 9 | NTIG | NEXUS TRADING INC | | | SCAC4 |
| 10 | NTIH | NICKS TRUCKING INC | | | SCAC4 |
| 11 | NTII | NTI INC | | | SCAC3 |
| 12 | NTII | NORTH TEXAS INTERMODAL INC | | | SCAC4 |
| 13 | NTIK | NORAS TRANSPORT INC | | | SCAC4 |
| 14 | NTIM | N-TIME | | | SCAC3 |
| 15 | NTIN | NORTHERN TOURS INC | | | SCAC3 |
| 16 | NTIO | NATIONAL CAR RENTAL | | | SCAC3 |
| 17 | NTIS | NORRIS TRANSPORTATION SERVICE | | | SCAC3 |
| 18 | NTIU | GERMANISCHER LLOYD | | | PWRC |
| 19 | NTIU | Germanischer Lloyd | | | RSRV |
| 20 | NTIW | NOMAN TRANSPORTATION INC | | | SCAC4 |
| 21 | NTIX | Network Trading Inc. | added 1/2004; eliminated 7/2004; added 1/2005; 7/2005; eliminated 7/2006 | | NAKINA |
| 22 | NTIX | NETWORK TRADING, INC. | | | PWRC |
| 23 | NTIX | NETWORK TRADING INC | | | SCAC4 |
| 24 | NTIY | NICHOLLES TRUCKING INC | | | SCAC4 |
