Best mobile network in CB4 Cambridge postcode district

Comparing Ofcom-verified operator coverage footprints, EE is the best choice for Cambridge. In this mixed urban-rural area, EE achieves an overall coverage score of 84/100 — driven by good 5G coverage (69%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE consistently leads O2 by 8 points overall. While O2 reaches 55% on 5G and 99% on 4G in Cambridge, it falls short of EE's combined performance across all bands. Vodafone and Three round out the field at 74 and 72 respectively.

EE has made solid 5G inroads across Cambridge, reaching 69% of premises in CB4. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 99% keeps reliability high throughout.

The runner-up in CB4 is O2 at 76/100 (55% 5G / 99% 4G). The margin is noticeable but not enormous. EE edges ahead on 5G depth; if your plan is with O2, 4G performance should still be solid.