0800 Numbers: Free from Both Mobile and Landline

What 0800 and 0808 numbers are

Freephone numbers exist so that an organisation can invite people to call without the caller paying for the privilege. In the UK the freephone ranges are 0800 and 0808. They are widely used by helplines, customer service teams, sales lines and support services, precisely because removing the cost of calling encourages people to get in touch. The defining feature is simple: a call to one of these numbers is free to the person dialling.

This is the opposite of a premium rate 09 number, where part of the charge funds a service. With a freephone number there is no charge to the caller at all, on any device. The 0808 range works in exactly the same way as 0800 and is often used by charities and support organisations, including some specific 0808 ranges reserved for helplines.

Freephone numbers are non-geographic, which means they are not tied to a particular area code or location in the way that an 01 or 02 number is. A national organisation can advertise a single 0800 line that works the same way for callers anywhere in the country, and can route incoming calls to wherever its contact centre happens to be. This separation of the dialled number from any physical location is part of what makes freephone numbers practical for large operations and campaigns.

It is worth distinguishing freephone numbers from the various service number ranges. Numbers beginning 084 and 087 are not free: they carry an access charge from the caller's provider plus a service charge set by the organisation. Numbers beginning 03 are charged at the same rate as a call to an ordinary 01 or 02 number and count towards inclusive minutes, but they are not free in the way 0800 and 0808 are. Only the 0800 and 0808 ranges deliver a genuinely free call to the caller.

The 2015 rule change for mobiles

For many years freephone numbers were genuinely free only from landlines. Mobile networks commonly applied their own charges to 0800 calls, which meant a number advertised as free could still cost a mobile caller money. This created confusion, because the word freephone did not match the experience of many callers who used mobiles as their main phone.

Ofcom addressed this through its UK Calling reforms. From 1 July 2015, calls to 0800 and 0808 numbers became free from mobile phones as well as landlines. The change made the freephone promise consistent across all devices, so that an 0800 or 0808 number advertised as free is now free whether the caller dials from a home phone or a mobile. This was introduced at the same time as the unbundling of 084, 087 and 09 charges into a separate access charge and service charge.

0800 and 0808 number rules post-2015

The table below summarises how freephone numbers behave for callers after the July 2015 reforms.

Who actually pays for the call

A freephone call is not genuinely free in the sense that nobody pays: the cost is simply moved away from the caller and onto the organisation that owns the number. The business or charity operating an 0800 or 0808 line pays its telecoms provider for the calls it receives, usually on a per-minute basis. By absorbing this cost, the organisation removes any barrier that the price of a call might create for people getting in touch.

This funding model is why freephone numbers are attractive for inbound contact where the organisation wants maximum reach. After the 2015 change, organisations took on the additional cost of mobile callers as well, which they had previously not borne. The trade-off for that cost is a number that can be advertised as genuinely free on every device, which is valuable for helplines and customer-facing services.

The shift in who bears the cost was the central point of the reform. Before July 2015, mobile callers effectively subsidised part of the cost of reaching a freephone line through the charges their own networks applied, which sat awkwardly with the freephone label. Moving that cost onto the number owner restored the principle that a freephone call is free to the caller, full stop, while giving organisations certainty that the way they advertise the number matches the experience of the people dialling it.

Why businesses use freephone numbers

Organisations choose freephone numbers when removing the cost of calling supports their goals. Helplines and charities use them so that cost is never a reason someone does not reach out for support. Customer service and sales lines use them to encourage contact and to project an accessible, professional image. A freephone number is also non-geographic, so it is not tied to a particular town or region, which suits national operations.

The free-from-mobile change has reinforced this for helplines in particular. Many people who need to contact a support service do so from a mobile, sometimes a pay-as-you-go handset with limited credit, so a charge that applied only to mobile callers risked deterring exactly the people the service existed to help. By making 0800 and 0808 calls free on every device, the reform removed that barrier and made the freephone model far more dependable for organisations whose reach depends on no caller being put off by cost.

Since the reforms made 0800 and 0808 numbers free across all devices, the marketing value of advertising a number as free has become more reliable, because the promise now holds for the large proportion of callers who use mobiles. As the wider telephone network moves to all-IP, with Openreach's migration completing in 2027, freephone numbers continue to operate, with the charging logic carried across to the digital network.

There are practical reasons an organisation may still choose a chargeable service number instead of freephone, which is why ranges such as 084 and 087 remain in use. A freephone number transfers the full cost of every inbound call to the organisation, which can be significant for a high-volume line, whereas a service number shares or shifts some of that cost. The choice is a balance between encouraging contact by removing the caller's cost and managing the organisation's own call expenditure, and different sectors land in different places on that balance.

For callers, the key thing to remember is that the prefix tells you what to expect. A number beginning 0800 or 0808 is free to call from any phone. A number beginning 084, 087 or 09 will cost money, with the price built from an access charge and a service charge that should be displayed wherever the number is advertised. Recognising the freephone ranges on sight is the simplest way to know, before dialling, that a call will not appear on the bill.

Frequently Asked Questions

Are 0800 numbers free from mobiles?

Yes. Since 1 July 2015, calls to 0800 numbers have been free from mobile phones as well as landlines. Before that date many mobile networks charged for 0800 calls, but Ofcom's UK Calling reforms made the freephone promise consistent across all devices.

When did 0800 numbers become free from mobile?

0800 numbers became free from mobiles on 1 July 2015, as part of Ofcom's UK Calling reforms. The same set of changes also unbundled the cost of 084, 087 and 09 numbers into a separate access charge and service charge.

Who pays when I call an 0800 number?

The organisation that owns the 0800 number pays for the call, typically on a per-minute basis to its telecoms provider. The caller pays nothing, which is the defining feature of a freephone number and the reason these ranges are used for helplines and customer service lines.

Are 0808 numbers also free?

Yes. The 0808 range is a freephone range that works the same way as 0800, and it is free to call from both landlines and mobiles following the July 2015 change. Some specific 0808 ranges are reserved for helplines run by charities and support organisations.

Can businesses charge to call 0800 numbers?

No. 0800 and 0808 are designated freephone ranges, so the caller is not charged for the call on any device. The cost is met by the organisation that owns the number, which is why these ranges are advertised as free to call.