Three and coverage and postcode
Three remains a distinct mobile brand after the combination of Three UK and Vodafone UK. Your existing Three agreement, rather than a group announcement, determines your individual terms.
The Three map predicts coverage; indoor walls, congestion and the handset can change the result at a postcode.
The terms that matter are those attached to your own service. An independent information line cannot view the account or confirm an individual balance, eligibility or coverage outcome.
Questions worth writing down.
Use the full postcode in the provider map and Ofcom Map Your Mobile. Compare indoor and outdoor results.
- Which document or provider page states the rule for this specific account?
- Does the handset, postcode, destination or start date change the answer?
- What happens after the current term or allowance ends?
Building materials, landscape and congestion can change real experience. Test the places that matter.
Use the verified route.
Keep a copy of the plan summary and any Go Roam wording that belongs to your account.
For a change to service, a replacement SIM, a complaint or cancellation, contact Three through its own verified account or help channel. We can talk through general information without requesting credentials.
Call for free information020 3996 8779↗Check live information.
Three official help ↗Ofcom consumer information ↗Reviewed 28 September 2026. Provider details can change. Verify the current terms before making a personal decision.