Q1
Best network for CO8?
EE leads with 100/100 — driven by 100% 5G and 100% 4G in this mixed urban-rural part of Colchester.
CO8 DISTRICT · BABERGH
Best mobile network in Assington CO8 · Babergh
EE scores 100/100 — the best measured network for CO8 in Colchester, 10 points clear of the weakest. 100% 5G-grade · 100% 4G. Ofcom Mobile Coverage data (May 2025), measured across 69 addresses in 6 sampled postcodes.
The CO8 district covers Assington, Lamarsh, Alphamstone and Mount Bures, in Babergh. Signal varies street by street — scan your exact postcode below.
RESULT · CO8 · COLCHESTER
Coverage for CO8 district
★ BEST MEASURED
EE
100/100
EE has the strongest measured coverage for the CO8 district in Colchester, 10 points clear of the weakest network in Ofcom's data.
Full ranking — CO8
#1
EE
#2
Three
#3
O2
#4
Vodafone
Coverage analysis — CO8
According to Ofcom's Mobile Coverage data, EE is the clear winner in Colchester. In this mixed urban-rural 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 comfortably leads Three by 0 points overall. While Three reaches 100% on 5G and 100% on 4G in Colchester, it falls short of EE's combined performance across all bands. O2 and Vodafone round out the field at 96 and 90 respectively.
Why EE for CO8?
EE's 5G rollout in Colchester is among the strongest nationally, covering 100% of premises in the CO8 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 CO8 is Three at 100/100 (100% 5G / 100% 4G). It is a close contest — both operators deliver strong coverage in CO8, and your choice may come down to tariff, handset preference, or existing contract.
Switching to EE in Assington
EE has the strongest measured signal here — 100/100, with 100% 5G-grade and 100% 4G coverage across Assington, Lamarsh, Alphamstone and Mount Bures, 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 Colchester area
View full coverage analysis for the Colchester (CO) area, or enter any UK postcode in the scanner above for a personalised result.
Coverage FAQ — CO8
Q2
Is 5G available in CO8?
EE provides excellent 5G coverage at 100%. Three follows at 100%.
Q3
Which network has the best 4G?
EE leads 4G too at 100%. Reliable 4G is critical in mixed urban-rural areas.
Q4
Is O2 worth considering?
O2 scores 96/100 in CO8 (100% 5G, 100% 4G). It may suit certain tariff or price preferences despite trailing the top two.