Best mobile network in GU12 Guildford postcode district

Drawing on Ofcom Connected Nations 2024 premises coverage statistics, EE is the clear winner in Guildford. In this suburban area, EE achieves an overall coverage score of 88/100 — driven by strong 5G coverage (77%) and rock-solid 4G at 98%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE clearly leads Three by 6 points overall. While Three reaches 66% on 5G and 99% on 4G in Guildford, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 81 and 77 respectively.

EE has made solid 5G inroads across Guildford, reaching 77% of premises in GU12. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 98% keeps reliability high throughout.

The runner-up in GU12 is Three at 82/100 (66% 5G / 99% 4G). The margin is noticeable but not enormous. EE edges ahead on 5G depth; if your plan is with Three, 4G performance should still be solid.