SO POSTCODE AREA · 7 DISTRICTS SAMPLED

Southampton mobile coverage All four at 100/100 in all 7 districts sampled SO postcode area

No network wins Southampton on overall coverage: all four score 100/100.

Southampton as a whole

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EE
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
O2
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
Three
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
Vodafone
Overall: 100/100
5G
100%
4G
100%
Indoor
100%

Ofcom Mobile Coverage data (May 2025), measured across 742 addresses in 37 sampled postcodes, pooled from 7 districts. Methodology.

What differs inside Southampton

Nothing, on Ofcom's figures: across all 7 districts sampled, no network differs by 8 points or more from one district to the next, indoors or outdoors.

District by district

DistrictPlacesIndoor, low to highAddresses
SO14 Bevois, Polygon, Bargate 100% on all four 155
SO15 Polygon, Bargate, Bassett 100% on all four 159
SO16 Rownhams, Romsey, Nursling 100% on all four 41
SO17 Bevois, Polygon, Bassett 100% on all four 85
SO18 Eastleigh, West End, Bargate 100% on all four 86
SO19 Bursledon, Hound, West End 100% on all four 181
SO20 Ashley, Crawley, Houghton 100% on all four 35

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1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.

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