If you need to speak to an O2 customer service representative then please dial the O2 telephone number above.

The customer service team will be happy to assist you with any of your enquiries including Billings, Upgrades, Pay as you go or any technical help you may require.

You may also wish to use the O2 telephone number to report your phone lost or stolen. If your phone has been lost or stolen it is important to contact O2 so your handset can be blocked.

O2 is owned by Telefonica UK Limited and is part of the Telefonica Europe division. It is a major player in the UK telecommunications industry and is the second biggest telecoms provider.

In 2006 O2 started to provide fixed telephone line and broadband services to the UK market bringing O2 into the home market place. This proved highly successful and in 2013 bskyb announced it was going to buy the fixed line side of the business.

O2 also offer other services such as O2 money and O2 priority. If assistance is needed with any of these products please dial the O2 telephone number.

O2 are also proud sponsors of the O2 arena in London. This venue hosts some of the biggest concerts in the world and many world class acts have played to sellout crowds. O2 customers benefit from a priority ticket service which enables them to buy tickets to the O2 arena 48 hours prior to general release. To find out more please call the O2 telephone number.