UK mobile operator O2 is to slash international calling charges across its Pay & Go range, allowing its customers to make calls to mobiles and landline numbers from as little as 1p a minute, with ...

Following a tariff overhaul by T-Mobile last month, O2 is the latest network to revamp its monthly contracts. The original home of the iPhone is launching a new SIM-only tariff and updating its ...

If you have an O2 SIM card tucked inside your phone, you're about to get a major 5G upgrade. Virgin Media O2 has flipped the switch on its next-generation 5G network, unleashing faster speeds and ...