Q1
Best network for SO18?
EE leads with 92/100 — driven by 84% 5G and 99% 4G in this densely populated urban part of Southampton.
SO18 DISTRICT · SOUTHAMPTON
Best mobile network in SO18 Southampton postcode district
Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the SO18 postcode district in Southampton.
RESULT · SO18 · SOUTHAMPTON
Coverage for SO18 district
★ BEST OPERATOR
EE
92/100
EE delivers the strongest coverage for the SO18 district in Southampton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SO18
#1
EE
#2
Three
#3
Vodafone
#4
O2
Coverage analysis — SO18
Cross-referencing EE, Vodafone, O2 and Three using Ofcom 2024 data, EE is the clear winner in Southampton. In this densely populated urban area, EE achieves an overall coverage score of 92/100 — driven by strong 5G coverage (84%) and rock-solid 4G at 99%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE clearly leads Three by 6 points overall. While Three reaches 73% on 5G and 100% 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.
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Coverage FAQ — SO18
Q2
Is 5G available in SO18?
EE provides strong 5G coverage at 84%. Three follows at 73%.
Q3
Which network has the best 4G?
EE leads 4G too at 99%. Reliable 4G is critical in densely populated urban areas.
Q4
Is Vodafone worth considering?
Vodafone scores 86/100 in SO18 (72% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.