Skip to content

Quick Help Support

O2 customer service

United Kingdom
Last checked 21 October 2026
Official site o2.co.uk

Fastest route: the support page

o2.co.uk/help

Open the support page

Phone numbers

0344 809 0202 From a landline Listed on o2.co.uk/contactus
07860 980202 From abroad Listed on o2.co.uk/contactus
0344 809 0222 From a landline Listed on o2.co.uk/contactus
0345 606 2277 From a landline Listed on o2.co.uk/contactus
0800 977 7337 From a landline Listed on o2.co.uk/contactus
0808 100 4439 From abroad Listed on o2.co.uk/contactus
0800 081 0255 From any phone Listed on o2.co.uk/contactus
0800 298 8848 More than 10 phones Listed on o2.co.uk/contactus

Chat and social

X (Twitter) @o2

Help pages

Support page o2.co.uk/help
Contact page o2.co.uk/contactus
Service status status.o2.co.uk

Complaints

Complaints page o2.co.uk/how-to-complain

Opening hours

You can call Marketing Interactive Voice Response 24/7, Monday to Sunday, to purchase more data and add Bolt Ons.
Lines open Monday to Friday, 8am to 6pm.
. Lines open Monday to Friday, 9am to 5pm.

As published on o2.co.uk

Is this your brand? Correct this listing

Report a problem

Independent directory. Not affiliated with O2. We never route or record your call.