Q1
Best network for SO9?
EE leads with 92/100 — driven by 84% 5G and 100% 4G in this densely populated urban part of Southampton.
SO9 DISTRICT · SOUTHAMPTON
Best mobile network in SO9 Southampton postcode district
EE scores 92/100 — the top-ranked UK network for SO9 in Southampton. 84% 5G · 100% 4G coverage. Data: Ofcom Connected Nations 2024.
RESULT · SO9 · SOUTHAMPTON
Coverage for SO9 district
★ BEST OPERATOR
EE
92/100
EE delivers the strongest coverage for the SO9 district in Southampton. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — SO9
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — SO9
Comparing Ofcom-verified operator coverage footprints, EE scores highest across 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 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE clearly leads Three by 5 points overall. While Three reaches 75% on 5G and 100% on 4G in Southampton, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 87 and 85 respectively.
Why EE for SO9?
EE's 5G rollout in Southampton is among the strongest nationally, covering 84% of premises in the SO9 district. For anyone streaming video, gaming on mobile, or relying on a mobile hotspot at home, this level of 5G penetration makes a real difference to day-to-day speed.
The runner-up in SO9 is Three at 87/100 (75% 5G / 100% 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.
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Coverage FAQ — SO9
Q2
Is 5G available in SO9?
EE provides strong 5G coverage at 84%. Three follows at 75%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is O2 worth considering?
O2 scores 87/100 in SO9 (74% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.