Q1
Best network for SE3?
EE leads with 100/100 — driven by 100% 5G and 100% 4G in this densely populated urban part of South East London.
SE3 DISTRICT · GREENWICH
Best mobile network in Kidbrooke SE3 · Greenwich
EE scores 100/100 — the best measured network for SE3 in South East London, 6 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 159 addresses in 6 sampled postcodes.
The SE3 district covers Kidbrooke, Sutcliffe, Blackheath and Eltham Page, in Greenwich. Signal varies street by street — scan your exact postcode below.
RESULT · SE3 · SOUTH EAST LONDON
Coverage for SE3 district
★ BEST MEASURED
EE
100/100
EE has the strongest measured coverage for the SE3 district in South East London, 6 points clear of the weakest network in Ofcom's data.
Full ranking — SE3
#1
EE
#2
O2
#3
Vodafone
#4
Three
Coverage analysis — SE3
According to Ofcom's Mobile Coverage data, EE outperforms rivals in South East London. In this densely populated urban area, EE 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.
EE clearly leads O2 by 0 points overall. While O2 reaches 100% on 5G and 100% on 4G in South East London, it falls short of EE's combined performance across all bands. Vodafone and Three round out the field at 100 and 94 respectively.
Why EE for SE3?
EE's 5G rollout in South East London is among the strongest nationally, covering 100% of premises in the SE3 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 SE3 is O2 at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in SE3, and your choice may come down to tariff, handset preference, or existing contract.
Switching to EE in Kidbrooke
EE has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Kidbrooke, Sutcliffe, Blackheath and Eltham Page, 6 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 South East London area
View full coverage analysis for the South East London (SE) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — SE3
Q2
Is 5G available in SE3?
EE provides excellent 5G coverage at 100%. O2 follows at 100%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.
Q4
Is Vodafone worth considering?
Vodafone scores 100/100 in SE3 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.