Can I change 0800 to +44 and expect it to work?

An international format alone does not establish that an overseas network can route the call. Use the organisation’s published overseas number where one is available, and check support and charges with your calling service.

Is the overseas alternative free too?

Not necessarily. An ordinary UK geographic or mobile number can have a calling charge. Check the exact number’s price rather than assuming it inherits the 0800 number’s UK freephone treatment.

What if the organisation publishes no overseas number?

Use its official web form, secure message, callback service or other published contact method. Do not guess a replacement number or take a financial-service contact number from an unverified directory.

Calling guides

How to call a UK 0800 number from abroad

A UK 0800 number may cost money or fail to connect from overseas. Look for a number listed for callers abroad on the organisation’s own contact page.

Find the right number Check a number’s rate

0800 / 0808

UK freephone prefixes. Overseas access and charges need a separate check.

Find an official overseas alternative

Find the number the organisation publishes for overseas callers

Open the official contact page.
Use the organisation’s own domain, an existing account portal or the contact details printed on your statement. Avoid numbers inserted into search ads or third-party directories.
Look for “from abroad”, “international” or “outside the UK”.
The alternative can be listed below the domestic number or on a separate contact page. Make sure it handles your department or question, rather than an unrelated service.
Keep the official international format.
If the organisation publishes a number beginning +44, copy that format. Do not add another country code or a domestic leading zero after it.
Check access, price and opening hours.
An overseas alternative is not automatically free. Check the rate before calling, and read the office’s current opening hours in its local time.

Is an 0800 call free from abroad?

0800 and 0808 calls are free from UK consumer landlines and mobiles. Those rules do not cover calls from overseas. Ask your calling provider whether it supports the number and what it charges.

Last checked 15 October 2026: Ofcom’s UK calling guide and GOV.UK call charges.

An official example: the Pension Service

The Pension Service lists a domestic 0800 number on GOV.UK. On the same page, it directs people living abroad to the International Pension Centre.

Follow that link and check which service handles your question. Other organisations may offer a different overseas number, a callback or a web form.

Last checked 15 October 2026: Pension Service contact page → International Pension Centre.

If there is no overseas number

Ask through the official web form or secure account for a geographic alternative or callback. If a provider cannot quote or support the number, use another published contact method rather than repeatedly adding credit.

For a US 800 number, use the separate US toll-free guide. For public offices, the government calling guide covers what to prepare before you join a queue.

Check the alternative number’s rate

Check the rate for your number

Found an overseas alternative? Enter its full international number to see the number type, available calling modes and price per minute.

Parlacall connects a browser call to an ordinary phone number. You need internet access and microphone permission; the recipient doesn’t need Parlacall. Check availability before you add credit.

See all rates

Questions before you call

Can I change 0800 to +44 and expect it to work?: An international format alone does not establish that an overseas network can route the call. Use the organisation’s published overseas number where one is available, and check support and charges with your calling service.
Is the overseas alternative free too?: Not necessarily. An ordinary UK geographic or mobile number can have a calling charge. Check the exact number’s price rather than assuming it inherits the 0800 number’s UK freephone treatment.
What if the organisation publishes no overseas number?: Use its official web form, secure message, callback service or other published contact method. Do not guess a replacement number or take a financial-service contact number from an unverified directory.

Need to contact your UK provider?

If you need EE’s overseas contact details, see how to call EE from abroad. Check the rate for the full number: an overseas contact number is not necessarily a landline.