UK

O2 UK, also known as Telefónica UK Limited, is a major mobile network operator in the United Kingdom, providing services across England, Scotland, Wales, and Northern Ireland. Operating under Mobile Country Code (MCC) 234 and Mobile Network Code (MNC) 02, O2 boasts a significant share of the UK mobile market, competing with other key players like Vodafone, EE (formerly Everything Everywhere) and Three. O2 offers a comprehensive suite of mobile services, including 4G LTE and increasingly expansive 5G coverage. Historically, O2 has been recognised for its focus on customer experience, with initiatives like O2 Priority, offering exclusive benefits and early access to concert tickets. As part of Telefónica Europe, O2 UK benefits from a global network and resources that allow it compete effectively within the ever-evolving UK mobile telecommunications landscape. The network's influence extends beyond individual consumers, providing connectivity solutions for businesses and playing a pivotal role in the UK's digital infrastructure.