Here's what I was sent earlier:
"EE uses 1800 band, and the Moto G 4G LTE bought in the US is using 4G LTE Bands 2, 4, 5, 17 (1900, 1700, 850, 700 MHz)
A phone that is bought in Europe is optimised for other networks, so they are using 4G LTE Bands 1, 3, 7, 8, 20 (2100, 1800, 2600, 900, 800...