Find exclusive offers and discover Switch Up, Flexible Superfast 5G Tariffs, Free Roaming & O2 Priority. Stay connected, wherever you are.

Find O2 offers on iPhone, Samsung and more. Reduce your monthly bill by spreading the cost up to 36 months. Flex your data up or down monthly on Pay Monthly devices.

Get help with everything to do with your O2 account – with information on your billing and usage, how to use My O2, and what to do if you're looking to upgrade.

Shop our best pay monthly phone deals and contracts on our ultra fast 5G network. Compare features and offers on our range of smartphones.

Get help and support with all the things that matter most to you – from understanding your bill and using your phone abroad to managing your O2 account online.

Cookies on O2 We use cookies to help you get the best experience from our site and show you more relevant products. Carry on browsing without changing your settings if you agree to our use of …

Find answers to any question about an order, our products or anything else O2 on our website – or contact our helpful customer support by phone or online chat.

My O2 gives you total control over your account – at home and on the go. Check your bills, manage your personal details, see if you're able to upgrade and much more.

Take control of managing your O2 account with our help guides that explain how to register for My O2, change your personal details, transfer ownership and more.

Welcome to O2, the leading mobile phone site on the web. You can discover the world of O2 from network information to new services.