Holywell mobile coverage Three 75% indoors here, 100% in CH6 nearby CH8 · Denbighshire
No network wins CH8 on overall coverage: all four are within 4 points, but indoors EE and Vodafone reach 100% of sampled addresses and Three 75%.
CH8: Holywell, Halkyn, Mostyn, Bagillt, Caerwys, Llanasa, Brynford, Whitford (Denbighshire, Flintshire).
CH8 scores
Ofcom Mobile Coverage data (May 2025), measured across 138 addresses in 6 sampled postcodes: CH8 7DA, CH8 7DY, CH8 7NJ, CH8 7SD, CH8 8NZ, CH8 8RJ. Methodology.
How CH8 compares
Every network here is within 8 points of the Chester average, indoors and outdoors.
Weakest spot in Chester: CH3 District, where Three reaches 51% indoors.
Indoor signal around CH8
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| CH8 Holywell (here) | – | 100% | 99% | 75% | 100% |
| CH6 Halkyn, Bagillt | 8 | 100% | 100% | 100% | 100% |
| CH7 Mold, Buckley: Bistre | 15 | 100% | 100% | 100% | 100% |
| CH5 Shotton, Connah's Quay | 16 | 100% | 100% | 88% | 100% |
| CH4 Hope, Higher Kinnerton | 24 | 97% | 100% | 97% | 100% |
| Chester average | – | 97% | 99% | 79% | 100% |
Biggest difference nearby: Three indoors, 75% here and 100% in CH6 Halkyn, 8 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: Ofcom separates no network here.
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