Poland’s Office of Electronic Communications (Urzad Komunikacji Elektronicznej, UKE) has opened a consultation on the refarming of spectrum in the 2100MHz band.
The regulator is proposing that TDD frequencies between 1900MHz and 1920MHz, plus FDD spectrum in the 1920MHz-1980MHz and 2110MHz-2170MHz ranges should be opened for 5G use. The frequencies are currently utilised for 3G and 4G services.
Source: https://www.commsupdate.com/articles/2020/04/14/poland-looks-to-refarm-2100mhz-spectrum-for-5g/