Octobre 2021 —

O2 sim only: everything you need to know

Hey there! You are travelling in United Kingdom to visit your beloved ones or live there? Here is the best place for you to get everything you need to know about O2 sim only, one of the greatest phone operator in UK!  Find out everything you need to know about O2 sim only, all its services, and how Monisnap (ex Allo) will help you to get the best of it!

Discover O2 sim only and top up in a minute!


O2 sim only: top up onine
O2 sim only

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. Both companies will have a 50% stake in the combined entity.

O2 is operating in three countries: UK, Spain and Germany.

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

O2 sim only: the best offers

O2 sim only deals are different from one to another. O2 sim only offers usually are complete and contain data, credit, and SMS at least! Depending on the offer contained in the package, the price will be higher or lower.

O2 also provides top up which allows to refill your phone with only what you need. To give you an example, if you use the web top up, you can refill you O2 phone from £10 to £30. If you use the e-top up card or a voucher, you can top up from £10 to £50.

Here are some examples of pay monthly O2 sim only in UK:

List of O2 pay monthly sim deals in UK

Complete table: price, data, minutes, texts and bonus

Data Unlimited250GB150GB100GB20GB5GB1GB
Minutes UnlimitedUnlimitedUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
Bonus6 months of free Apple Music and 6 months of Disney+6 months of free Apple Music and 6 months of Disney+6 months of free Apple Music and 6 months of Disney+6 months of Disney+, Amazon Prime Video6 months of free Apple Music and 6 months of Disney+3 months of Disney+3 months of Disney+

O2 sim only tariffs

As we said above, O2 sim deals prices depend on the services provided and contained in the package. The more you get credit, data, and SMS, the more you pay.

O2 top up online tariffs depends on the top up you choose and the way you will top up. Some recharge modes limit the amount of the top up or define a minimum amount. Basically, you’ll just pay the amount of your top up.

How can I activate my O2 sim?

To activate you O2 sim is quite easy! You just have to follow these steps:

  • Get your sim according to your mobile phone.
  • Get to the O2 sim pay as you go website page.
  • Enter your mobile broadband number (which is in your sim pack) and sign in.
  • Follow the instructions to register and activate your credit and data.

How can I top up my O2 sim?

To top up your O2 sim, you can top up your 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.
  • 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.

The easiest and fastest way to top up your phone O2 sim only with credit or data to use Monisnap (ex Allo)! With Monisnap, top up O2 credit and data in 1 minute!

Need to top up your O2 phone?

Monsinap, top up quickly and easily

Top up in 1 minute!

O2: 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 deals, with the most competitive rates on the market! Monisnap 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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