| 1 | UCR | Aero-Charter Ukraine Ltd. | {Callsign: Charter Ukraine, Name changed to Joint Stock Company "Air Company Aero-Charter"};SRCKEY=AVCODES | UA | |
| 2 | UCR | Joint Stock Company "Air Company Aero-Charter" | IATA: DW, Callsign: Charter Ukraine, IATA Prefix: 187, Founded in 1997. Ceased operations. Name changed from Aero-Charter Ukraine Ltd. | UA | AVCODES |
| 3 | UCR | Aero-Charter Ukraine | IATA: DW | | ICAO1 |
| 4 | UCR | Utah Coal Route | 8/1920-1/1980 | | NAKINA |
| 5 | UCR | Utah Coal Route | 4/38-1/80 | | NRHS |
| 6 | UCR | UTAH COAL ROUTE | | | PWRC |
| 7 | UCR | Utah Coal Route | | | RSRV |
| 8 | UCRI | USA CARRIERS, INC | | | SCAC1 |
| 9 | UCRN | UNICORN TRANSPORTATION INC | | | SCAC4 |
| 10 | UCRS | UPPER CANADA RAILWAY SOCIETY | | | PWRC |
| 11 | UCRS | UPPER CANADA RAILWAY SOCIETY | | | SCAC4 |
| 12 | UCRT | USA CARTAGE INC | | | SCAC4 |
| 13 | UCRY | Utah Central Ry. Co. | added 1/1996; eliminated 4/1997; 7/2000-7/2005 | | NAKINA |
| 14 | UCRY | Utah Central Ry. Co. | added 1/96; eliminated 4/97; 7/2000 | | NRHS |
| 15 | UCRY | UTAH CENTRAL RAILWAY CO. | | | PWRC |
| 16 | UCRY | Utah Central Railroad | | | RSRV |
| 17 | UCRY | UTAH CENTRAL RAILWAY COMPANY | | | SCAC4 |
