Best mobile network in SS6 Southend postcode district

Cross-referencing EE, Vodafone, O2 and Three using Ofcom 2024 data, EE scores highest across Southend. In this mixed urban-rural area, EE achieves an overall coverage score of 83/100 — driven by good 5G coverage (67%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE noticeably leads O2 by 7 points overall. While O2 reaches 54% on 5G and 98% on 4G in Southend, it falls short of EE's combined performance across all bands. Three and Vodafone round out the field at 73 and 70 respectively.

EE has made solid 5G inroads across Southend, reaching 67% of premises in SS6. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 99% keeps reliability high throughout.

The runner-up in SS6 is O2 at 76/100 (54% 5G / 98% 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.