Haddenham mobile coverage O2 15% indoors here, 92% across Hemel Hempstead HP17 · Buckinghamshire
Three has the best measured coverage in HP17: 97/100, 10 points ahead of O2 on Ofcom's overall score, with EE within 1 point.
HP17: Haddenham, Upton, Great, Kingsey, Hartwell, Wendover, Aylesbury, Ellesborough (Buckinghamshire).
HP17 scores
Ofcom Mobile Coverage data (May 2025), measured across 92 addresses in 5 sampled postcodes: HP17 8TU, HP17 8UJ, HP17 8UT, HP17 8XA, HP17 8XG. Methodology.
How HP17 compares
Against the Hemel Hempstead average
- O2 indoors: 15% here, 92% across Hemel Hempstead (−77).
- Vodafone indoors: 59% here, 93% across Hemel Hempstead (−34).
- Three indoors: 80% here, 96% across Hemel Hempstead (−16).
- EE indoors: 74% here, 89% across Hemel Hempstead (−15).
Lowest indoor figure of the 20 Hemel Hempstead districts sampled, for O2.
Indoor signal around HP17
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| HP17 Haddenham (here) | – | 74% | 15% | 80% | 59% |
| HP19 Aylesbury, Watermead | 7 | 100% | 100% | 100% | 100% |
| HP18 Quainton, Waddesdon | 7 | 89% | 48% | 89% | 28% |
| HP20 Aylesbury, Bierton | 7 | 100% | 100% | 100% | 100% |
| HP14 Ridgeway, Lane End | 14 | 91% | 45% | 73% | 46% |
| Hemel Hempstead average | – | 89% | 92% | 96% | 93% |
Biggest difference nearby: O2 indoors, 15% here and 100% in HP19 Aylesbury, 7 km away.
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iD Mobile runs on Three's network: £6 a month for 15GB (read 19 October 2026). A price, not a coverage ranking: Three leads this page on Ofcom's data alone.
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