Septembre 2021 —

O2 coverage: everything you need to know

Hey there! You are travelling in United Kingdom, Spain, or Germany to visit your beloved ones? You are living there? Are you looking for a simple and efficient way to get credit and call no matter where you are? You are at the right place! Find out everything you need to know about O2 coverage, all its services, and how Monisnap (ex Allo) can make your life easier by letting you buy O2 top up!

Discover O2 coverage and top up in a minute!

O2: presentation

O2 coverage: rates
O2 coverage

Telefonica O2 plc (known as O2 or before March 2005 as mmO2) is a British telecommunications company specializing in mobile telephony, originally part of the BT Group and owned since 2005 by the Spanish operator Telefónica. The firm is headquartered in Slough, with major offices in Bury, Glasgow, Leeds, and Preston Brook.

Launched in 1985 as Cellnet, O2's UK operations were a joint venture between BT Group (60%) and Securicor (40%). In 1993, Cellnet launched GSM services, and in 1999, Securicor sold its shares in O2 to BT: O2 was renamed BT Cellnet. BT Cellnet was integrated into BT Mobile.

O2 was created when BT separated from its cell phone business. The BT Cellnet brand was renamed O2, the chemical symbol for oxygen.

In May 2020, Telefónica and Liberty Global announced the merger of O2 and Virgin Media in the United Kingdom in a deal valuing the combined entity at nearly $38 billion, including debt. Both companies will have a 50% stake in the combined entity.

O2 is operating in three countries:

  • United Kingdom: Telefonica O2 had a market share of 26% in 20099.
  • Germany: O2 had a 13.5% market share in June 200910.
  • Spain: O2 is Telefónica's low-cost secondary brand under the Movistar umbrella, launched on June 20, 2018

O2 offers several services such as O2 packages and prepaid card, credit or data top up.

O2 coverage

O2 benefits from a very good coverage across countries in which it operates. Furthermore, O2 provides a coverage checker in the form of a map and gives detail on whether the network is good inside, outside, both or if there’s no signal in some areas. You can consult it on O2 website!

If you have a signal problem, you can use the O2 network status checker to see if there’s a known network connection problem in your area, or to report an unknown issue to us. From here, you’ll be able to subscribe to updates using Keep Me Posted.

If there’s no known issue, try manually resetting your device by:

  • Turning your phone off and on
  • Making sure mobile data is turned on in your settings
  • Choosing the O2 network manually in your settings
  • Resetting your network settings (this will also reset Wi-Fi networks and passwords, cellular settings, VPN and APN settings that you’ve used before)

O2 coverage also now provides 5G in parts of most major UK towns and cities, as well as lots of smaller towns and villages.

How to top up a O2 phone online?

To top up your O2 phone, you can top up your prepaid card using one of the following options:

  • Web top up: top up between £10 and £30 online. You’ll just need your mobile phone number and a credit or debit card. Your card will need to be from a UK bank and registered to a UK address. You can only top up in pounds.
  • Auto top up: Auto top-up makes sure you never run out of credit by automatically topping up with money from your credit or debit card. You’ll need to sign in to My O2 (website or app).
  • Top up by phone: call 4444 free from your mobile, or 08456 062 277 from a landline. Have your debit or credit card and follow the simple instructions.
  • E top up card: to top-up, hand over your e-top up card at any O2 shop or other store with the green top-up logo. You can pay by cash, credit or debit card and can top up between £10 and £50. You can also use the same card again and again.
  • Top up voucher: go to any O2 shop or anywhere you see the green top-up logo and ask for an O2 top-up. You can pay by cash or card. Then call 4444 free from your mobile, or 08456 062 277 from a landline, enter the number on your receipt and follow the instructions. Top up between £10 and £50.

An easiest and fastest way to top up your phone with O2 credit or data top up is to use Monisnap (ex Allo)! With Monisnap, top up O2 credit and data in 1 minute and benefit from O2 coverage!

How to check your O2 balance?

The easiest way to check your balance, is by signing into My O2, online or through the app.

Otherwise, you can try one of the following:

  • Press Hotkey 2 on your mobile phone
  • Key *#10# then press the call button
  • Dial 4444 for free from your mobile

O2 mobile: top up your phone in 1 minute with Monisnap (ex Allo)

Want to buy a phone top-up now? Monisnap (ex Allo) is the easiest and cheapest way to top up your credit in a minute!

With Monisnap (ex Allo), you can buy credit top up from many operators including O2, with the most competitive rates on the market! Monisnap (ex Allo) is here to make your work easier and to allow you to benefit as simply as possible from credit or internet top-ups.

It is quite simple. Either on the website of Monisnap (ex Allo) or on the mobile application:

  • Enter the country and phone number you want to top up
  • Choose the O2 credit or data top-up you want
  • Pay on our secure website

You are all set! The beneficiary's mobile will then be credited in one of the following ways depending on the top-up purchased:

  • If it is an "Instant top-up", it will be automatically credited to the recipient's mobile, who will receive a confirmation SMS
  • If it is a "PIN top-up", you will receive a PIN code by email and on your customer area with the instructions to follow to top up the mobile

The type of recharge (instant or PIN) is indicated in the description of each recharge.

Get your top up right now!

❓ What is O2 mobile?

O2 is a phone service provider which offers severals plans, prepaid sim cards and credit or data top up to call locally and internationally!

💰 How can I top up?

It's simple! Just go on the website of Monisnap (ex Allo) or on the phone application to top up in a minute!

💡 Why should I use Monisnap (ex Allo)?

Because it is the more simple, fastest and cheapest way to top up your phone!

Yannis Rahal


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