The data shows the O2 mobile users' overall satisfaction with the provider's customer service in the UK during 2018. In 2018, 92% of O2 customers expressed some level of satisfaction with the service.
O2, then known as Cellnet, was formed through a joint venture with the BT group as the majority shareholder in 1985. Most recently in 2006, O2 plc was purchased by the Spanish telecommunications company Telefónica for approx. 18 billion GBP. O2 being one the most well known MNO in the United Kingdom had the most mobile virtual network operators (MVNO) making use of its infrastructure in 2013, with a total of approx.
