Best mobile network in GL3 Gloucester postcode district

Cross-referencing EE, Vodafone, O2 and Three using Ofcom 2024 data, EE comes out on top for Gloucester. In this mixed urban-rural area, EE achieves an overall coverage score of 84/100 — driven by strong 5G coverage (70%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE noticeably leads Three by 8 points overall. While Three reaches 55% on 5G and 98% on 4G in Gloucester, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 74 and 72 respectively.

EE has made solid 5G inroads across Gloucester, reaching 70% of premises in GL3. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 99% keeps reliability high throughout.

The runner-up in GL3 is Three at 76/100 (55% 5G / 98% 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.