Q1
Best network for HP17?
Three leads with 97/100 — driven by 100% 5G and 100% 4G in this suburban part of Hemel Hempstead.
HP17 DISTRICT · BUCKINGHAMSHIRE
Best mobile network in Haddenham HP17 · Buckinghamshire
Three scores 97/100 — the best measured network for HP17 in Hemel Hempstead, 10 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 92 addresses in 5 sampled postcodes.
The HP17 district covers Haddenham, Upton, Great and Kingsey, in Buckinghamshire. Signal varies street by street — scan your exact postcode below.
RESULT · HP17 · HEMEL HEMPSTEAD
Coverage for HP17 district
★ BEST MEASURED
Three
97/100
Three has the strongest measured coverage for the HP17 district in Hemel Hempstead, 10 points clear of the weakest network in Ofcom's data.
Full ranking — HP17
#1
Three
#2
EE
#3
Vodafone
#4
O2
Coverage analysis — HP17
According to Ofcom's Mobile Coverage data, Three comes out on top for Hemel Hempstead. In this suburban area, Three achieves an overall coverage score of 97/100 — driven by excellent 5G coverage (100%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
Three comfortably leads EE by 1 points overall. While EE reaches 100% on 5G and 100% on 4G in Hemel Hempstead, it falls short of Three's combined performance across all bands. Vodafone and O2 round out the field at 94 and 87 respectively.
Why Three for HP17?
Three's 5G rollout in Hemel Hempstead is among the strongest nationally, covering 100% of premises in the HP17 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 HP17 is EE at 96/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in HP17, and your choice may come down to tariff, handset preference, or existing contract.
Switching to Three in Haddenham
Three has the strongest measured signal here — 97/100, with 100% 5G-grade and 100% 4G coverage across Haddenham, Upton, Great and Kingsey, 10 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 — HP17
Q2
Is 5G available in HP17?
Three provides excellent 5G coverage at 100%. EE follows at 100%.
Q3
Which network has the best 4G?
Three leads 4G too at 100%. Reliable 4G is critical in suburban areas.
Q4
Is Vodafone worth considering?
Vodafone scores 94/100 in HP17 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.