O2 Mobile: everything you need to know about the operator

Are you searching for a new phone operator in the UK? You are having difficulty finding the right one for you? We have the solution: O2 mobile! 

If you have just moved to the UK and are in need of a mobile operator or are just looking to make a switch from your previous one, O2 mobile might just be the right fit for you. 

In this article, we will provide you with information about O2’s mobile services, phone deals, top-up plans and much more. Does this spike your interest? Read ahead, you’ll get all the details you need regarding O2 mobile and how to top up an O2 phone!

O2 Mobile (previously Cellnet) is the second largest telecommunications services provider in the UK, after EE. 

Officially formed in 1985 with headquarters in Slough, England, O2 was originally created as a joint venture between BT Group and Securidor. However, O2 mobile was bought in 2006 and is now owned by the Telefonica group, a Spanish multinational telecommunications company. O2 Mobile is officially incorporated as Telefonica UK Ltd., however, the owner decided to keep the brand as O2. The company also has two subsidiaries: Giffgaff and 50% of Tesco Mobile. 

O2 Mobile has over 10.000 employees and owns over 450 retail stores across Great Britain and Northern Ireland. 

O2 mobile has over 23 million satisfied customers, which makes it easy to understand why the brand is in the top 3 preferred telecommunications services. O2 runs 2G, 3G, 4G and 5G networks across the UK, as well as operating O2 Wifi. On top of that, O2 Mobile also provides mobile broadband services, Sim Only deals, phone contracts and more. 

You can find out more about their offers directly from their website or you can continue reading this article. We promise, all you need to know is right here! 

If you’re not only looking for an operator but also a new phone, O2 mobile has great phone deals. From your most basic models to the newest ones, O2 makes sure that all the devices they sell correspond to the mobile deals they offer. Plus, they are quite a bargain.  

Here are a few details about the O2 mobile phone deals: 

Have you chosen your device but do not know you to top-up your SIM? Check out the section below to find all the details about O2’s Mobile top-up plans! 

Your O2 SIM card needs a top-up but you don’t yet know how to proceed? We’ll explain everything, step-by-step so that you can easily top-up your mobile and stay connected with your friends and family.

O2 has a wide variety of mobile top-ups, O2 top up card that you can choose from, depending on your needs. Don’t forget you can also use Monisnap (ex Allo), for a quick top-up, easy and secure. 

Here are the detailed types of top-up plans for O2 Mobile. 

O2 Mobile web top-up: 

Auto top-up: 

Top-up by phone: 

Top-up abroad:

Now that you know all the types of top-ups O2 Mobile can offer, you can make the best informed decision. Continue reading this article to also see how you can login on the My O2 app and how to contact their customer service.

Simplify your access to your O2 mobile by creating an account on My O2. You can use My O2 from your browser or your phone app, available on Google Play and Apple Store. 

Using MY O2is easy. In order to login, create an account by following these steps: 

Once you have followed these instructions, you will be able to log into your account using your email and password. With My O2, you can check your usage and remaining balance, set-up auto top-ups and manage your account. Login today!

Good Customer Service is key to ensure customer satisfaction. Fortunately, there are many ways to contact O2 Mobile. We have detailed them all for you. 

Don’t forget to check their help page before reaching for Customer Service, you may find the answer there and save you a lot of time. 

Contact O2 Customer Service by chat:

Contact O2 Mobile by phone:

Depending on your inquiry and the service you are trying to reach, there are multiple phone numbers you can call. 

O2 Mobile Customer Service for Pay Monthly:

O2 Mobile Customer Service for Pay as you Go:

O2 Mobile does not provide an email address on which you can contact them. Feel free to use the methods presented above.

Do you want to top up a friend’s phone number in just one minute? Use Monisnap (ex Allo)!  

You can purchase mobile top-ups for call credit or mobile data at the exact same fares that you find on O2. Go check the O2 data plan now!

Here’s how it works: 

As a bonus, for each top-up, mobile or data, you earn one loyalty star. Four stars equal one top-up with zero fees.

Use Monisnap (ex Allo): fast, easy and secure!