The HTC One is going to hit various markets in the near future, with AT&T, Sprint and T-Mobile being among the confirmed mobile operators that will have it in stock later this year.

However, neither HTC nor its U.S. partners mentioned any availability dates for the new flagship handset yet. But at least one American HTC One version has been spotted at the FCC, seeking official approval.

The device is most likely Sprint’s HTC One, considering that it features Sprint LTE (band 25). Moreover, according to available documentation, the test unit is actually a production model, meaning that the device could be launched in the very near future.

In addition to Sprint, AT&T and T-Mobile will also sell the HTC One later this year, with Verizon yet to named among the HTC One carriers. That’s why we’re not surprised to also hear that two more HTC One versions have also been spotted at the FCC, one sporting quad-band LTE (2, 4, 5 and 17) and the other one dual-band LTE (4, 17)

We’ll be back with more launch details for the U.S. HTC One models as soon as we have them. Will you buy the device?