LTE, LTE-Advanced and LTE-Advanced Pro services are deployed in many licensed spectrum bands from 450 MHz to 3.7 GHz.
The three most-used bands in commercial LTE networks are 1800 MHz (Band 3), which is a mainstream choice for LTE in most regions; 800 MHz (Band 20 and regional variations) and 2.6 GHz (FDD Band 7) as a major capacity band; and 700 MHz (with variations in around the world)
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