Killay mobile coverage Three 32% indoors here, 81% across Swansea SA5 · Swansea
EE has the best measured coverage in SA5: 100/100, 10 points ahead of Three on Ofcom's overall score, with O2 within 0 points.
SA5: Killay, Cockett, Landore, Llwchwr, Cwmbwrla, Penderry, Llansamlet, Penllergaer.
SA5 scores
Ofcom Mobile Coverage data (May 2025), measured across 105 addresses in 5 sampled postcodes: SA5 5AA, SA5 5EG, SA5 5JD, SA5 7AB, SA5 7HH. Methodology.
How SA5 compares
Against the Swansea average
- Three indoors: 32% here, 81% across Swansea (−49).
- EE indoors: 100% here, 87% across Swansea (+13).
Weakest spot in Swansea: SA4 Llannon, where EE reaches 4% indoors.
Indoor signal around SA5
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| SA5 Killay (here) | – | 100% | 98% | 32% | 100% |
| SA1 Cockett, Landore | 3 | 100% | 100% | 100% | 100% |
| SA2 Killay, Sketty | 4 | 100% | 100% | 100% | 100% |
| SA6 Clydach, Landore | 5 | 100% | 78% | 100% | 100% |
| SA4 Llannon, Llwchwr | 6 | 4% | 88% | 18% | 97% |
| Swansea average | – | 87% | 91% | 81% | 95% |
Biggest difference nearby: Three indoors, 32% here and 100% in SA1 Cockett, 3 km away.
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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: EE leads this page on Ofcom's data alone.
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