This should work fine on ATT. It has the bands. I just ordered one to use on TMobile. It doesn't work on TMobile 66 and 71.
https://www.tomsguide.com/us/how-to-buy-huawei-p20-pro-usa,news-26928.html
. Registered my note8's IMEI with at&t (totally accepted by them).
Lte , visual voicemail works !
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I got mine 3 days ago and works like a charm. P20 pro dual SIM. Clt29 from Singapore. Registered my note8's IMEI with at&t (totally accepted by them).
Lte , visual voicemail works !
There is no band 29 and 30 which I used 7% of the time (on my note 8) in NY metro but for the moment this was not a challenge.