O2 spent £524 million on two blocks of spectrum – one in the 2.3GHz band which will be used to boost 4G services and another in the 3.4GHz band which will be used for 5G.
EE bought a block in the 3.4GHz band for £303 million.
Vodafone also bought a 3.4GHz block for £378 million.
Both EE and Vodafone were unable to bid for 2.3GHz spectrum because they already have the limit allowed.
Three paid £151 million for 3.4GHz spectrum.