How to Call Three UK From Abroad
8/27/2026
Quick answer: Personal Three customers should call +44 7782 333 333 from abroad, Monday to Friday 8am to 8pm, Saturday and Sunday 9am to 6pm. Mobile broadband customers should use +44 7782 333 500 instead, same hours.
Two lines depending on what you're a customer of
Three splits its overseas contact numbers by account type: personal mobile customers use one line, and mobile broadband (dongle or router) customers use another. Both are mobile numbers, so the usual rule applies from abroad: add +44, drop the leading 0.
The verified numbers
| Account type | Number | Hours |
|---|---|---|
| Personal customers | +44 7782 333 333 | Mon-Fri 8am-8pm, Sat-Sun 9am-6pm |
| Mobile broadband customers | +44 7782 333 500 | Mon-Fri 8am-8pm, Sat-Sun 9am-6pm |
Source: Three's official contact page.
What to have ready before you call
- Your Three account number or mobile number
- The postcode or address on your account
- Details of the specific issue: billing, a device problem, or a Go Roam question
Best time to call
Both lines run Monday to Friday 8am to 8pm and weekends 9am to 6pm UK time.
- Spain/Western Europe: 1 hour ahead of the UK.
- US East Coast: 5 hours behind the UK, so call in your morning to catch UK hours.
- UAE/Gulf: 3 to 4 hours ahead of the UK.
- Australia (Sydney): 9 to 11 hours ahead of the UK, depending on daylight saving.
The cheaper way to actually make the call
Unless you're calling from your own Three SIM on Go Roam, standard roaming or international rates apply for the whole call. With DialVia, you call the real Three number over Wi-Fi from your browser instead:
- Open DialVia and sign up (about 30 seconds)
- Select United Kingdom as the destination
- Enter the number: 7782 333 333
- Hit call
Frequently asked questions
What's Three's number for calling from abroad? +44 7782 333 333 for personal customers, or +44 7782 333 500 for mobile broadband customers.
Is calling Three from abroad free? Only if you're calling from your own Three SIM within a Go Roam destination. Calling from a browser or another network is a standard international call.
What are Three's calling hours? Monday to Friday 8am-8pm, Saturday and Sunday 9am-6pm UK time, for both lines.
What should I have ready before calling? Your account or mobile number, your postcode, and details of the issue you're calling about.
Need another UK telecom provider's number? See the full guide to calling UK telecom providers from abroad, covering BT, Vodafone, and EE too.
👉 Try DialVia to call from your browser in 30 seconds. Didn't connect? You don't pay. Or return to the DialVia homepage to learn more.