| 1 | TCF | Shuttle America | IATA: S5, Callsign: Shuttlecraft, Name changed to Shuttle America Corporation. ICAO callsign changed to Mercury. Designator S5 reinstated by IATA. Operates as US Airways Express | USA | AVCODES |
| 2 | TCF | Shuttle America Corporation | IATA: S5, Callsign: Mercury, Merged into Republic Airline on 31 January 2017. Name changed from Shuttle America. ICAO callsign changed from Shuttlecraft. Designator S5 reinstated by IATA. Operates as US Airways Express | USA | AVCODES |
| 3 | TCF | Shuttle America | IATA: S5 | | ICAO1 |
| 4 | TCFB | TRANS-CONTINENTAL FREIGHT BUREAU (T | | | SCAC3 |
| 5 | TCFB | TCF EXPRESS INC | | | SCAC4 |
| 6 | TCFC | UMLER TEST ROAD NO. 7 | | | PWRC |
| 7 | TCFE | TRI-COUNTY FUELS INC | | | SCAC4 |
| 8 | TCFF | TOWN & COUNTRY FREIGHT FORWARDING L | | | SCAC3 |
| 9 | TCFF | TRANSPORT SPECIALTIES INC | | | SCAC4 |
| 10 | TCFG | TRANSNATIONAL FREIGHT LINES INC | | | SCAC3 |
| 11 | TCFH | TONES TRUCKING | | | SCAC4 |
| 12 | TCFI | TCF INDUSTRIES | | | SCAC3 |
| 13 | TCFK | TILLAMOOK COUNTY CREAMERY ASSOCIATI | | | SCAC4 |
| 14 | TCFL | TWIN CITY FREIGHT INC | | | SCAC3 |
| 15 | TCFL | TWIN CITY FREIGHT INC | | | SCAC4 |
| 16 | TCFM | TRANSPORT C F MORIN INC | | | SCAC4 |
| 17 | TCFN | TOTAL - COMPAGNIE FRANCAISE DES PET | | | SCAC3 |
| 18 | TCFO | TRI COUNTY FORKLIFT INC | | | SCAC3 |
| 19 | TCFP | TRANSPORT COUTURE & FILS LTEE | | | SCAC4 |
| 20 | TCFS | TRANS-COASTAL FREIGHT SYSTEMS INC | | | SCAC3 |
| 21 | TCFS | TIME CRITICAL FREIGHT INC | | | SCAC4 |
| 22 | TCFU | ADA-SERVICE LTD | | | SCAC4 |
| 23 | TCFX | Temtor Corn & Fruit Products Co. | 8/1920 | | NAKINA |
| 24 | TCFX | TEMTOR CORN & FRUIT PRODUCTS CO. | | | PWRC |
