O2
Mobile Phones and Accessories
| Website: | https://www.o2.co.uk/contactus |
| Address: | Peninsula Square, London SE10 0DX |
| Phone: | 0844 463 02 02 (Customer Services Phone Number) |
| Working Hours | Mon-Fri : 8AM – 6PM Saturday : Closed Sunday : Closed |
Telefonica UK Limited, trading as O2 UK, is a telecommunications services provider in the United Kingdom, owned by Telefónica, headquartered in Slough, England. With 34 million customers (including those on MVNO networks as of February 2020, O2 is the second largest UK mobile network operator, after EE, and followed by Vodafone and Three.