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:

Telefónica O2 UK

Telefónica O2 Ireland 

Telefónica O2 Germany

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

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.