The A1428 has LTE on bands 4 and 17 (1700mhz and 700mhz [b-block])
This is also known as the AT&T version so all those unlocking AT&T iPhones will have AWS support on LTE
Verizon/Sprint on the other hand (or unlocked iphones outside the US/Canada) will not have such support.
iPhone 5 16 GB unlocked to T-Mobile USA! Micro Sim cut to Nano SIM
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