HP11 DISTRICT · BUCKINGHAMSHIRE

Chepping Wycombe mobile coverage EE 59% indoors here, 89% across Hemel Hempstead HP11 · Buckinghamshire

Three has the best measured coverage in HP11: 100/100, 6 points ahead of EE on Ofcom's overall score, with Vodafone within 0 points.

HP11: Chepping Wycombe, Marsh, Booker, Cressex, Oakridge, Loudwater, Castlefield, Micklefield (Buckinghamshire).

HP11 scores

#1
Three
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
#2
Vodafone
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
#3
O2
Overall: 98/100
5G
100%
4G
100%
Indoor
90%
#4
EE
Overall: 94/100
5G
100%
4G
100%
Indoor
59%

Ofcom Mobile Coverage data (May 2025), measured across 41 addresses in 4 sampled postcodes: HP11 1AA, HP11 1BL, HP11 1QS, HP11 2JZ. Methodology.

How HP11 compares

Against the Hemel Hempstead average

  • EE indoors: 59% here, 89% across Hemel Hempstead (−30).

Weakest spot in Hemel Hempstead: HP17 Haddenham, where O2 reaches 15% indoors.

Indoor signal around HP11

Districtkm awayEEO2ThreeVodafone
HP11 Chepping Wycombe (here) – 59%90%100%100%
HP13 Downley, Hughenden 1 75%100%92%100%
HP12 Downley, West Wycombe 2 92%100%100%100%
HP10 Hazlemere, Beaconsfield 4 100%100%100%100%
HP15 Hazlemere, Hughenden 5 29%100%100%89%
Hemel Hempstead average – 89%92%96%93%

Biggest difference nearby: EE indoors, 59% here and 75% in HP13 Downley, 1 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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