SA4 DISTRICT · CARMARTHENSHIRE
Llannon mobile coverage EE 4% indoors here, 87% across Swansea SA4 · Carmarthenshire
Vodafone has the best measured coverage in SA4: 100/100, 14 points ahead of EE on Ofcom's overall score, with O2 within 2 points.
SA4: Llannon, Llwchwr, Tircoed, Gowerton, Pontlliw, Gorseinon, Llangennech, Penllergaer (Carmarthenshire, Swansea).
SA4 scores
#1
Vodafone
#2
O2
#3
Three
#4
EE
Ofcom Mobile Coverage data (May 2025), measured across 94 addresses in 6 sampled postcodes: SA4 4AB, SA4 4FR, SA4 4HR, SA4 4UF, SA4 4XG, SA4 4YH. Methodology.
How SA4 compares
Against the Swansea average
- EE indoors: 4% here, 87% across Swansea (−83).
- Three indoors: 18% here, 81% across Swansea (−63).
Lowest indoor figure of the 9 Swansea districts sampled, for EE and Three.
Indoor signal around SA4
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| SA4 Llannon (here) | – | 4% | 88% | 18% | 97% |
| SA5 Killay, Cockett | 6 | 100% | 98% | 32% | 100% |
| SA2 Killay, Sketty | 7 | 100% | 100% | 100% | 100% |
| SA6 Clydach, Landore | 9 | 100% | 78% | 100% | 100% |
| SA1 Cockett, Landore | 9 | 100% | 100% | 100% | 100% |
| Swansea average | – | 87% | 91% | 81% | 95% |
Biggest difference nearby: EE indoors, 4% here and 100% in SA5 Killay, 6 km away.
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