Virgin Media O2 is a British telecommunications joint venture between Liberty Global and Telefónica that provides broadband, TV, landline and mobile services. The company operates the UK's largest gigabit broadband network and offers pay-TV through Virgin TV, mobile phone services through O2, and business connectivity solutions for enterprises and the public sector. Customers can bundle broadband, TV and mobile plans and access exclusive entertainment through the Virgin Media O2 Priority program. The company invests heavily in network upgrades and the rollout of fibre and 5G infrastructure while pursuing sustainability initiatives. Headquarters are in Reading, Berkshire.