The most widely used band for 4G/LTE to date is the 1800 MHz band, according to GSA (Global mobile Suppliers Association), which counts 42 active LTE deployments using this spectrum. The second most popular band in which LTE systems are deployed is 2.6 GHz, followed by 700 MHz.
Commercial LTE1800 services are currently available in 29 countries and there are more than 130 LTE devices on the market suporting this band.
GSA notes that in most cases the 1800 MHz spectrum has been refarmed from its original use as a 2G/GSM band.
