Q1
Best network for HA9?
EE leads with 93/100 — driven by 85% 5G and 100% 4G in this densely populated urban part of Harrow.
HA9 DISTRICT · HARROW
Best mobile network in HA9 Harrow postcode district
EE scores 93/100 — the top-ranked UK network for HA9 in Harrow. 85% 5G · 100% 4G coverage. Data: Ofcom Connected Nations 2024.
RESULT · HA9 · HARROW
Coverage for HA9 district
★ BEST OPERATOR
EE
93/100
EE delivers the strongest coverage for the HA9 district in Harrow. Scored across 5G, 4G and 3G using the latest UK operator footprint data.
Full ranking — HA9
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — HA9
Based on Ofcom Connected Nations 2024 data, EE comes out on top for Harrow. In this densely populated urban area, EE achieves an overall coverage score of 93/100 — driven by excellent 5G coverage (85%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.
EE comfortably leads Three by 5 points overall. While Three reaches 76% on 5G and 100% on 4G in Harrow, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 85 and 85 respectively.
Why EE for HA9?
EE's 5G rollout in Harrow is among the strongest nationally, covering 85% of premises in the HA9 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 HA9 is Three at 88/100 (76% 5G / 100% 4G). The margin is noticeable but not enormous. EE edges ahead on 5G depth; if your plan is with Three, 4G performance should still be solid.
Best phone deals from EE
Because signal quality matters most when choosing a phone contract, here are the top EE contracts available now.
Explore the Harrow area
View full coverage analysis for the Harrow (HA) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — HA9
Q2
Is 5G available in HA9?
EE provides excellent 5G coverage at 85%. Three follows at 76%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is O2 worth considering?
O2 scores 85/100 in HA9 (70% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.