Could Aircard 754s be used in T-mobile?

[Jamessu]

Hi, just eagerly want to know if Aircard 754s could support band12 which supported by T-mobile? I want to move it to T-mobile. Could I? 

Any thought , please let me know.

[DarrenM]

Hello Jammessu

I believe you would have to get the device unlocked in order to use other SIM cards in the device so you may want to contact ATT to see if they will allow you to unlock the device in order to use other GSM SIM cards.

DarrenM