O2 Contact Number

0843 658 0834

Opening Hours
The O2 customer service department is open from 8am to 9pm between Monday and Friday. On Saturdays, it is open between 8am and 8pm. On Sundays it is open between 8am and 6pm.

Other O2 Numbers:

O2 Phone Number
Head Office 0844 453 0127
Upgrades 0843 557 3690
Billing 0843 658 0834

O2 Opening Hours

Customer Services Opening Hours
Monday-Friday 8am-9pm
Saturdays 8am-8pm
Sundays 8am-6pm

O2 Head Office

Department Address
Head Office 260 Bath Road,
SL1 4DX,
United Kingdom

O2 Call Centres
Upgrading your O2 phone
How to get an O2 PAC code
Delivery of O2 phones

Why Call the O2 Contact Number for Customer Service?

O2 Customer Service is the universal contact number to call to deal with any type of query you may have. Whether you need help with their mobile, broadband or business services, the O2 contact number will be able to help.


Some of the more common reasons to use the O2 Customer contact number is if you:

  • Are looking to view or pay a bill
  • Are looking to upgrade your phone
  • Are looking to view your balance or are looking to amend or upgrade your current tariff
  • Are planning to use your phone abroad and require more information on service, charges and insurance services
  • Are having difficulties with your current SIM card or need to unlock your phone
  • Need assistance with a technical problem relating to network coverage
  • Need further assistance on any of their personal or business products and services

What Do they Offer Their UK Customers?

o2 store

o2 store

Although they are the second biggest telecommunications provider in the UK, they predominantly focus on providing their customers with the best deals in the industry, additional services to improve their day-to-day lives and customer loyalty schemes to encourage long-term customer relationships.

Along with their continued commitment customer service, one of the recent initiatives O2 have launched is the ‘Priority Moments’ scheme which offers their customers first access to some of the biggest acts in entertainment such as music concerts, new film releases, sporting events and hospitality events.

Another of their recent initiatives is the ‘Fair Deal’ scheme which was set up to give their current customers access to new deals, devices and services that would of otherwise only been open to new customers.

Other Services


O2 Recycle is one of the latest services O2 have recently launched in the UK for 2013. The aim of the O2 customers to sell any of their old, broken or unwanted phones, mp3 players and other electronic gadgets. In return, O2 pays the customer in gift vouchers or cash for their products. O2 does not take any of the fees raised from recycling.

Where Is O2’s Head Office Located?

The head office for Telefonica, the company that owns O2, can be found at: 260 Bath Rd, Slough SL1 4DX.


O2 first started life in 2002 as the culmination of BT’s merger of its UK, Ireland, German and Dutch mobile divisions. In 2005 the brand was bought by the Spanish telecom giant Telefonica for £18 billion with a key part of the deal to keep the O2 brand and its UK headquarters. Today they are one of the UK and Europe’s strongest telecom provider.

In January 2012, they announced that they intend roll-out free access to millions of residents and visitors in the London area by creating Europe’s largest free Wi-Fi zone.

In June 2012, O2 and Vodafone agreed a deal that would enable them to share their network technology, effectively allowing them to compete with the recent merger of their main competitors – Orange and T-Mobile who later went on to form the company EE (Everything Everywhere).

As of 2010, it is estimated that 02 earned nearly £3 billion in revenues. It employs over 10,000 people across Europe with many based in its Headquarters located in Slough.

Alternative Methods Of Getting In Touch With O2

There are several different ways to contact O2 via email. They include:

You can also reach them across social media. They can be found on Twitter and Facebook.

Do you love live music and events? If you regularly visit the O2 Arena, Number Direct can transfer you to the O2 Arena Phone Number.

Why would I call O2 Broadband customer services?

  •    To get help setting up your connection.
  •   To discuss an issue with your broadband.
  •    To get help paying your bill.

What Do O2 Do?

O2 are a mainstream mobile network supplier in the UK. If you need support with your O2 broadband connection you can call O2 Broadband customer services. O2 has numerous stores on the UK high street as well as a direct website. In May 2013, O2 broadband was officially sold to Sky; meaning that any broadband contract with O2 is now with Sky. O2 plans to move their customers to Sky starting in October 2013. You can speak to the customer services team if you need more information regarding this. O2 also launched a new campaign in 2013, titled “Be More Dog”. The idea behind the campaign is to encourage people to take more risks and get out there, like dogs do, rather than just milling around waiting for something to happen, the way cats may do. O2 also offers its customers priority rewards. Priority rewards are exclusive to O2 customers, and mean that they can get access to pre-sale tickets for gigs, discounts on things in their area and listen to exclusive albums before anyone else.

Why Would I Call The O2 Arena Contact Phone Number?

o2 arena

o2 arena

0843 557 4552

  • To make a ticket booking.
  • To get a refund for cancelled events.
  • To find out stage times for live events.

Contact O2 Arena For More Info About Events And Services

The O2 Arena is a multipurpose indoor arena. If you wish to book tickets for an event at the arena, call the O2 Arena Phone Number. Upcoming events at the arena at the time of writing in 2013 include the Beyoncé Mrs Carter show, the 19th National Television Awards, Disney on Ice, the Strictly Come Dancing tour and Miley Cyrus.

If you are an O2 customer, you can access priority ticket sales for events at the O2 Arena using your mobile phone. O2 Arena phone deals are often sent out as text messages to customers on a weekly basis. The O2 Arena is part of the O2 entertainment complex on the Greenwich Peninsula in London.

To get to the O2 Arena, the nearest tube station is the North Greenwich station on the Jubilee Line. The arena also has a cinema, and can host exhibitions and has a smaller, more intimate section called the indigO2 where smaller artists play. There is also an Entertainment Avenue with bars and restaurants. The O2 Arena contact number can assist you with directions and facilities.

O2 Arena

The O2 Arena opened in 2007 at the former site of the Millenium Dome which closed in 2000. The arena has a capacity of up to 20,000 depending on the event,and the floor space can be changed between ice rink, basketball court and concert/exhibition space.

The O2 Arena is the second largest arena in the UK after the Manchester Arena but sells more tickets than its Manchester counterpart. During the 2012 Olympics, the arena was referred to as the North Greenwich Arena due to the Olympics’ law against corporate sponsors.

 O2 Mobile

O2’s primary business is its mobile phone network. You can purchase phones on a pay as you go or pay monthly basis. You can choose a range of tariffs such as O2 Refresh, where you can upgrade your phone early without having to pay penalty fees.

O2 Website

If you don’t live near an O2 store or you would prefer to have your phone delivered to your home, you can buy from the O2 website. You may find a range of website-exclusive deals.

Popular questions about O2

Where are O2 call centres based?

O2 has call centres across the UK and in South Africa.

O2: When can I upgrade?

You can upgrade for free at the end of your contract period which is usually around 24 months. If you are on O2 refresh, you can upgrade for free once you have paid off your device plan.

O2: How to get PAC code?

You can keep your phone number when transferring to another network by calling the O2 contact number on this page and requesting a PAC code. You’ll be asked some security questions and the reason why you wish to leave O2.

Who delivers O2 phones?

O2 phones are delivered by courier- usually DPD.

Number Direct is a telephone directory and call routing service and is not connected to O2 . The direct contact number for O2 can be found in the public domain or on their official website.