Q1
Best network for SO4?
EE leads with 92/100 — driven by 83% 5G and 100% 4G in this densely populated urban part of Southampton.
SO4 DISTRICT · SOUTHAMPTON
Best mobile network in SO4 Southampton postcode district
Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the SO4 postcode district in Southampton.
RESULT · SO4 · SOUTHAMPTON
Coverage for SO4 district
★ BEST OPERATOR
EE
92/100
EE delivers the strongest coverage for the SO4 district in Southampton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SO4
#1
EE
#2
Three
#3
Vodafone
#4
O2
Coverage analysis — SO4
Drawing on Ofcom Connected Nations 2024 premises coverage statistics, EE leads the field in Southampton. In this densely populated urban area, EE achieves an overall coverage score of 92/100 — driven by strong 5G coverage (83%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE comfortably leads Three by 5 points overall. While Three reaches 76% on 5G and 99% on 4G in Southampton, it falls short of EE's combined performance across all bands. Vodafone and O2 round out the field at 86 and 84 respectively.
Best phone deals from EE
Because signal quality matters most when choosing a phone contract, here are the top EE contracts available now.
Explore the Southampton area
View full coverage analysis for the Southampton (SO) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — SO4
Q2
Is 5G available in SO4?
EE provides strong 5G coverage at 83%. Three follows at 76%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is Vodafone worth considering?
Vodafone scores 86/100 in SO4 (72% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.