In the UK, 0800 numbers are non-geographic freephone numbers, which means calls to them are free for the caller, whether dialled from a landline or a mobile. Rather than the caller paying, the organisation owning the 0800 number covers the cost of the call. This model makes 0800 numbers a highly customer-friendly contact option for businesses and charities alike.
Why are 0800 calls Free for Callers?
Prior to 2015, mobile calls to 0800 numbers often incurred charges varying by provider, resulting in customer confusion. The launch of the UK Calling system on 1 July 2015 by Ofcom standardised call costs across all UK providers. Under this system:
- The access charge is set by your phone provider.
- The service charge is set by the organisation you are calling.
However, for 0800 numbers, both landline and mobile callers pay no charge whatsoever under UK law – this guarantees calls to 0800 numbers are absolutely free from all UK phones.
How do 0800 Calls Work from Mobiles and Landlines?
- Calling an 0800 number from any UK mobile or landline is free, and calls will not reduce any inclusive minutes or credit allowances.
- This policy applies to all major UK providers, including EE, O2, Vodafone, Three, Virgin Mobile, Tesco Mobile and many MVNOs such as GiffGaff and Lycamobile.
- There is no registration or special contract needed; freephone calling is automatic and universal on these numbers.
Who uses 0800 Numbers and Why?
Many companies and organisations use 0800 numbers because:
- They promote trust and professionalism, assuring customers the call is free.
- They enable nationwide access, as 0800 numbers are non-geographic and not tied to any location.
- Customers are more likely to call when they know there is no charge, which can drive sales and improve service engagement.
- Charities and helplines use 0800 numbers to ensure accessibility for all callers without financial barriers.
Are 0800 Numbers Premium Rate?
No. 0800 numbers are distinct from premium-rate numbers (e.g., starting with 09), which come with high charges. 0800 numbers are designed specifically as free-to-call lines, making the cost predictable and removed from the caller entirely.
What about Calling 0800 Numbers from Abroad?
While calls to 0800 numbers are free within the UK, calling them from outside the country usually incurs international rates. Callers abroad should check with their local phone provider for charges, as freephone status applies only domestically.
Summary Table: 0800 Call Costs in the UK (2025)
| Call Type | Cost to Caller | Notes |
| Call from UK Landline | Free | Applies universally |
| Call from UK Mobile | Free | Does not use call minutes or credit |
| Call from Abroad | Charged at international rates | Varies by country and provider |
| Premium-rate numbers | Not free | High charges apply, e.g., 09 number prefixes |
Final Thoughts
0800 numbers are a powerful business tool, offering a faultless, free caller experience across all UK networks as mandated by Ofcom. For companies aiming to improve customer engagement, reduce call barriers, and create a professional national presence, 0800 numbers are an excellent choice.
Interested in getting an 0800 number for your business? Contact Number Supermarket to explore packages tailored to your needs and boost your customer accessibility today.
