| 1 | UTAX | United Transportation, Inc. | added 7/1972; 1/1975-1/1980; eliminated 7/1985 | | NAKINA |
| 2 | UTAX | United Transportation, Inc. | 1/75-1/80 | | NRHS |
| 3 | UTAX | *UNITED TRANSPORTATION, INC. | | | PWRC |
| 4 | UTAX | *UTAH TRANSIT AUTHORITY | | | PWRC |
| 5 | UTAX | United Transportation (Utah Transit Authority) | | | RSRV |
