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Calls to 0870 numbers “calls cost 10p per minute plus your phone company’s access charge”

O2 Opening Times


8:00AM - 9:00PM


8:00AM - 8:00PM


8:00AM - 6:00PM

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Telefonica UK Limited owns a subsidiary called O2, which is one of leading companies in the United Kingdom in providing telecom services. The company is now the second largest in the provision of mobile telecom services in the country. The company came into existence in 1985 following a 60:40 joint venture involving BT Group and Securicor.

Later, BT Group bought out Securicor from the deal and became the sole owner of the business. Following the acquisition, the new company was called BT Cellnet. Upon launching the first commercial GPRS in the world, BT Cellnet rebranded to mmO2 plc. The company has grown into a major player in the telecom industry since John Carrington established it.

O2 Customer Services

O2 Phone Number

The company runs an online store where customers in the United Kingdom can buy phones and pay for the tariffs of their choice. Tablets and accessories such as memory cards, chargers, phone cases and bundle packs are available in plenty from the online stores as well. The apps that customers can buy from the company include MyO2 and TU Go to mention only a few.

The connectivity service that the company provides allows customers to enjoy 4G LTE network. The service also enables customers to locate Wi-Fi hotspots and enjoy increased coverage in London Underground, which is often notorious for poor connectivity. Some of the perks that customers receive from the company include Recycle, Refresh and Gurus among others.

Contacting O2 Customer Service

The fastest method for talking with a live person at customer service department is through chatting online on the official O2 website. The live chat is the best method where you are unable to find the answers at the Contact Us section and under FAQs. If you have a question on pay monthly and prefer calling, dial 0344 809 0202 from a landline or 202 from O2 mobile.

If you have a question regarding pay & go, call 0344 809 0222 from a landline. If you are abroad, the number to call is +44 7860 980 202. If you wish to speak with customer service regarding the business account, call 0800 977 7337 or +44 844 809 0200 from a landline in the United Kingdom or abroad respectively.

O2 Contact Tips

The customer service numbers for business accounts are toll-free, thus you will pay nothing for using them even when calling from abroad. If you place calls to the 0344 numbers, expect the costs to be standard UK rates. More importantly, if you need help from the customer service at O2, restrict your calls to the opening hours.

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