[Q] 800 MHz Band? topic

IS 800mhs a 4G band, and what operators use it?
I am in England and i am looking at buying a phone that doesnt have that band, but it has WCDMA 900/1900/2100MHz, FDD-LTE 1800/2100MHz, TDD-LTE 2600MHz, GSM 900/1800/1900MHz