Customer service

Comprehensive online support and the contact details for our customer service teams are available on the websites of our local operating businesses.

When you call, have your O2 mobile number ready, enter it when prompted and we will connect you to the most appropriate person to answer your query.

Please select a country:

O2 UK - Customer service centre for UK based customers only - 0870 5214 000.

O2 Ireland 

O2 Germany

Links to contact information, belonging to our other operating businesses, are available below:

Manx Telecom

Telefónica O2 Czech Republic

Telefónica O2 Slovakia

For queries regarding the Company or this website, please use our Contact us page and select your area of interest.