Best mobile network in BB9 Blackburn postcode district

Comparing Ofcom-verified operator coverage footprints, EE outperforms rivals in Blackburn. 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 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE consistently leads Three by 8 points overall. While Three reaches 55% on 5G and 98% on 4G in Blackburn, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 76 and 70 respectively.

EE has made solid 5G inroads across Blackburn, reaching 70% of premises in BB9. While not blanket coverage, most streets and town centres are covered — and 4G fallback at 100% keeps reliability high throughout.

The runner-up in BB9 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.