Three and sim guide
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.
Three lists SIM-only choices with different commitment lengths and a separate Pay As You Go route. Compare the term and allowance that appear in the current contract summary.
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.
A SIM connects an eligible device to a mobile subscription. Separate the physical or digital format from the airtime agreement itself.
- 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?
Check unlocked status, allowance, term, activation and the account holder. A replacement SIM is an official provider action.
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.