Q1
Best network for OX9?
Three leads with 100/100 — driven by 100% 5G and 100% 4G in this mixed urban-rural part of Oxford.
OX9 DISTRICT · BUCKINGHAMSHIRE
Best mobile network in Thame OX9 · Buckinghamshire
Three scores 100/100 — the best measured network for OX9 in Oxford, 7 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 129 addresses in 5 sampled postcodes.
The OX9 district covers Thame, Chinnor, Haddenham and Long Crendon, in Buckinghamshire. Signal varies street by street — scan your exact postcode below.
RESULT · OX9 · OXFORD
Coverage for OX9 district
★ BEST MEASURED
Three
100/100
Three has the strongest measured coverage for the OX9 district in Oxford, 7 points clear of the weakest network in Ofcom's data.
Full ranking — OX9
#1
Three
#2
Vodafone
#3
EE
#4
O2
Coverage analysis — OX9
Cross-referencing EE, Vodafone, O2 and Three in Ofcom's data, Three outperforms rivals in Oxford. In this mixed urban-rural area, Three 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.
Three comfortably leads Vodafone by 0 points overall. While Vodafone reaches 100% on 5G and 100% on 4G in Oxford, it falls short of Three's combined performance across all bands. EE and O2 round out the field at 99 and 93 respectively.
Why Three for OX9?
Three's 5G rollout in Oxford is among the strongest nationally, covering 100% of premises in the OX9 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 OX9 is Vodafone at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in OX9, and your choice may come down to tariff, handset preference, or existing contract.
Switching to Three in Thame
Three has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Thame, Chinnor, Haddenham and Long Crendon, 7 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 Oxford area
View full coverage analysis for the Oxford (OX) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — OX9
Q2
Is 5G available in OX9?
Three provides excellent 5G coverage at 100%. Vodafone follows at 100%.
Q3
Which network has the best 4G?
Three leads 4G too at 100%. Reliable 4G is critical in mixed urban-rural areas.
Q4
Is EE worth considering?
EE scores 99/100 in OX9 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.