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 In a nutshell  

Last updated October 2013

O2 is one of the "big 4" mobile networks in the UK.



O2 was formed in 2001 and is part of Telefónica O2 Europe. It was originally part of the BT group and is one of the biggest mobile operators in the UK, with over 18 million customers. In addition to voice, messaging and data services, it also provides 3G mobile broadband, fixed broadband and home phone services.

O2 launched its 4G service in August 2013, with monthly contracts starting at £32/month and with music, sport and gaming services included. The initial coverage is in London, Leeds and Bradford with a further 10 cities planned by the end of the year. Be aware that O2's 4G service does not support the iPhone 5.

User questions

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I've been with the same mobile company 18+ yrs but last 5 hardly any cover and none at home for last 5 years should I pay my bill?

Asked by Ger Richards from United Kingdom on 16th Jun 2017

How much does it cost to change from O2 mobile to Virgin mobile?

Asked by Grix from UK on 1st Mar 2017
Pay As You Go only. Also how long does it take?

Why am I being offered a second hand phone when mine wasn't broken? It was in excellent condition only problem was after marshmallow update wifi couldn't be used.

Asked by Mrs Claire Jones from England on 22nd Nov 2016
Did the software update on the 7th October 2016 after I did that wifi would no longer work on my Samsung gakaxy A3. Spoke to o2 who said it was a Samsung issue. Samsung took my phone twice for repair and problem still existed so o2 took phone in the 7th November and they still have it now they were waiting for parts then it was with an engineer now they waiting for parts again now iv been told I need a replacement phone but it will be a reconditioned one and someone else has used it, this is unacceptable as I never broke my phone they are not on it out of order been on phone around 35 times to be told it's a repair fault then repair saying its a customer service fault I was cut off about 3 times in one day.
Never before after 15+ years have I ever had such bad customer service, I am not accepting a tatty phone when mine was in mint condition, I think o2 should pay off my existing contract and let me have a new phone as I still owe 80 on this phone and iv not even had it for over a month yet I'm still having yo pay the bill... Come on o2 sort this out.
Customer service is shocking.
Time to go to another network I think.

See all 4 questions

O2 user reviews

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