Originally posted by RumoredNow
So for AT&T you need:
GSM (2G): 850 / 1900
HSPA+ (3G): 850 / 1900
LTE (4G): Band 17 @ 700 MHz / Band 4 @ 1700 & 2100 MHz / Band 2 @ 1900 MHz
The site you ordered from really doesn't show spec, but I'd bet dollars to donuts it is the Great Britain Country Variant.
According to Microsoft UK the Radio should be;
2G: 850 / 900 / 1800 / 1900
3G: 850/ 900 / 2100
4G: Band 1 @ 2100 MHz / Band 3 @ 1800 MHz / Band 7 @ 2600 MHz / Band 8 @ 900 MHz / Band 20 @ 800 MHz
That's a horrible match. I'd suggest canceling the order if you can and buying from somewhere in North, Central or South America..
In the US, Cricket will have a short lead on this phone before it goes wider in distribution. Cricket is an odd duck in that it is the only mvno to lock the SIM tray so that not even an AT&T SIM will work in it. Most other ATT mvnos don't need an unlock to run ANY SIM connected to ATT towers. Cricket is a tough nut to crack for using their branded phone off network, even with their parent company ATT.
B&H Photo is usually a great source for imported Factory Unlocked Windows Phones from the Latin America Markets which are a supurb match for US carrier frequencies.They are not even offering preorder on the 650 yet...