Septembre 2021 —

Three UK sim: top up credit and data in 1mn!

You want to top up your Three UK sim but you do not know how to do it, don’t you? Discover all three sim only deals UK, each one‘s advantages and how Monisnap (ex Allo) must help you to top up at any time.

Three UK

Three UK sim: top up your phone
Three UK sim

Three UK is a British mobile and Internet operator, based in England. It was created in 2003 by the CK Hutchison Holdings Ltd group, as the UK’s first 3G only network. In 2019, Three UK launched 5G and, from now on, operates 28% of the UK’s mobile data traffic.

What are the Three UK sim deals? 

Two three UK sim plans are available regarding your expected consumption and your payment preferences. 

In the first place, you can opt for a monthly subscription and benefit from an automatic renewal of your bundle. Actually, 17 tariffs exist depending on the contract length (1, 12 or 24 months), the amount of data (unlimited, 30, 12, 8, 4, 2 or 1 GB) and the amount of minutes (unlimited or 200) you want. Prices vary from under £10 to more than £20. By the way, all plans include not only the Go Roam Around the World option, with 71 destinations but also 5G at no extra cost.

List of Three UK bundles

Complete table: data, tariffs and contracts

DataTariffs for unlimited minutes and 12 months contract lengthTariffs for unlimited minutes and 24 months contract lenght
1GB£6.00£5.00
8GB£11.00£10.00
30GB£15.00£14.00
Unlimited data sim uk three£20.00£20.00

Otherwise, you can choose to top-up every time you need more data thanks to the Three UK as you go sim. Then, you can opt for cash credit top ups or Data Packs. On the one hand, the cash credit top-up offer works with fixed rates: 10p per minute, 10p per text and 5p per MB. For example, by the use of a £10 budget you obtain 200MB of data, or 100 texts or 100 minutes of calls. On the other hand, all Data Packs include unlimited texts and unlimited minutes. Thus, you only have to select the amount of data you want : unlimited data costs £35, 50GB cpst £20 and 6GB cost £15.

Three UK sim: how can I activate my sim? 

Activating your Three uk sim card remains very simple. First and foremost, you must check if your mobile phone is compatible with three uk sim card and if it works with 3G, 4G or 5G (not 2G). If you have just bought a new Three mobile phone with your Three mobile sim only UK, it is fine! Otherwise, you need to contact your previous operator to ask them to unlock your phone. 

Then, you just have to follow instructions :  

  • Insert the Three UK sim card into your phone and turn it on. 
  • You receive a first text to let you know your sim is being activated. A delay should be necessary to connect your phone to the Three network, up to 30 minutes.
  • Then, you receive a second text asking you to switch off and on again your phone. 
  • When you restart your phone, your SIM is activated! 

Need to top up a Three UK sim?

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The best offers on the market

How can I top up my Three UK sim card?

Two options for topping-up your Three UK sim card are available: 

  • Buy a voucher from £10 to £50 at any Three store or Three’s partner. Then, you would have to enter the 16-digit number printed across the receipt. 
  • Using your Credit/debit card. 

To access the Three UK top-up service, you can use the web, a cash machine or your phone. Instructions are the following ones: 

  • If you have a Three UK account: you log in, you register your Credit/debit card, you choose the voucher you want, and that’s it. 
  • If you do not want to create an account, you just have to visit the Three website and enter your phone number . 
  • You can also use your Credit/debit card at a few cash machines. Barclays, HSBC, Nationwide, The Coventry, Yorkshire and Clydesdale are available.You go at the cash machine, enter your phone number, select the amount you need, and you will be directly drawn from your bank account. 
  • Last but not least, you can call 444 and top up with your Credit/debit card or a voucher.  

The best way to top up your Three UK sim card remains to be using Monisnap (ex Allo). Security and speed guaranteed!

🧐 What is Three uk?

Three UK is a British mobile and Internet operator, based in England.

👀 What are the tariffs for a Three uk sim?

Two three UK sim plans are available regarding your expected consumption and your payment preferences.

🙌 Can I top up someone else's data?

Yes! You only need to know your relative’s phone number.

👌 How to top up my Three UK sim?

With Monisnap (ex Allo), you can top up in 1mn a SIM and for free!

Bertille Sallard


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