Q1
Best network for HP15?
O2 leads with 100/100 — driven by 100% 5G and 100% 4G in this suburban part of Hemel Hempstead.
HP15 DISTRICT · BUCKINGHAMSHIRE
Best mobile network in Hazlemere HP15 · Buckinghamshire
O2 scores 100/100 — the best measured network for HP15 in Hemel Hempstead, 11 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 131 addresses in 6 sampled postcodes.
The HP15 district covers Hazlemere, Hughenden, Great Missenden and Little Missenden, in Buckinghamshire. Signal varies street by street — scan your exact postcode below.
RESULT · HP15 · HEMEL HEMPSTEAD
Coverage for HP15 district
★ BEST MEASURED
O2
100/100
O2 has the strongest measured coverage for the HP15 district in Hemel Hempstead, 11 points clear of the weakest network in Ofcom's data.
Full ranking — HP15
#1
O2
#2
Three
#3
Vodafone
#4
EE
Coverage analysis — HP15
Cross-referencing EE, Vodafone, O2 and Three in Ofcom's data, O2 scores highest across Hemel Hempstead. In this suburban area, O2 achieves an overall coverage score of 100/100 — driven by excellent 5G coverage (100%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
O2 noticeably leads Three by 0 points overall. While Three reaches 100% on 5G and 100% on 4G in Hemel Hempstead, it falls short of O2's combined performance across all bands. Vodafone and EE round out the field at 98 and 89 respectively.
Why O2 for HP15?
O2's 5G rollout in Hemel Hempstead is among the strongest nationally, covering 100% of premises in the HP15 district. For anyone streaming video, gaming on mobile, or relying on a mobile hotspot at home, this level of 5G penetration makes a real difference to day-to-day speed.
The runner-up in HP15 is Three at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in HP15, and your choice may come down to tariff, handset preference, or existing contract.
Switching to O2 in Hazlemere
O2 has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Hazlemere, Hughenden, Great Missenden and Little Missenden, 11 points clear of the weakest. A cheaper plan on a network that does not reach your street costs more than it saves, so start from the coverage and pick the plan second.
Some links on this page are affiliate links. If you switch through one we may be paid a commission. It never changes which network we rank first - that comes from Ofcom coverage data alone.
Explore the Hemel Hempstead area
View full coverage analysis for the Hemel Hempstead (HP) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — HP15
Q2
Is 5G available in HP15?
O2 provides excellent 5G coverage at 100%. Three follows at 100%.
Q3
Which network has the best 4G?
O2 leads 4G too at 100%. Reliable 4G is critical in suburban areas.
Q4
Is Vodafone worth considering?
Vodafone scores 98/100 in HP15 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.