Mars 2022 —

Three eSIM: everything you need to know

Hey there! Got yourself a new phone with an eSIM, those virtual SIMs embedded in your phone? Fancy! Find out everything you need to know about Three eSIM, and how Monisnap can make your life easier!

Discover Three eSIM and how does it work in a minute!


Three esim: credit and data
Three esim

Three UK (legally Hutchison 3G UK Limited) is a British telecommunications and internet service provider currently based in Reading, England. Three is the fourth-largest mobile network operator in the United Kingdom, with 13.3 million subscribers as of July 2020 and its network today covers 99% of the UK population.

The company launched on 3 March 2003 as the United Kingdom's first commercial 100% 3G network. It provides 3G, 4G and 5G (in certain areas) services through its own network infrastructure.

Three launched 5G in August 2019 and also has the UK’s leading 5G spectrum holdings with more than the rest of the industry combined. Three is the only operator able to meet the International Telecoms Union (ITU) 2020 standard for full 5G services.

Three was voted the Best Network for Data at the Mobile Choice Consumer Awards, as well as Best Network for Roaming by uSwitch, and the Best High Street Retailer at the Mobile Industry Awards.

Three UK is part of the CK Hutchison Holdings Ltd group of companies which has mobile operations in 11 countries. Three employs more than 4,800 people across their offices in Reading, Glasgow and their 311 retail stores.

Three eSIM: the best offers

Three eSIM is a service that will allow you to avoid having to use a physical SIM card. This means that your phone, your subscriptions, and data will be completely dematerialized and will no longer be linked to a SIM card that you could break or lose!

Three eSIM tariffs

Three eSIM are not available yet as Three mobile as postponed the launch of the offer. Three UK has now indicated that eSIM support for 4G and 5G handsets will not arrive until 2022.

How can I activate my Three eSIM?

It's super easy to get things moving with your eSIM, you’ll just need to follow these steps:

  • First, make sure Wi-Fi's enabled on your device
  • Go to Settings and select Add Data Plan from the Mobile Data menu
  • Scan the QR code provided and tap Add Data Plan or if the camera is broken or you can’t scan the QR code for any reason, you can enter the details manually

Take note that when we process your eSIM request, your physical SIM will be disconnected. You'll need to wait for your new eSIM to arrive. This will mean you'll have to go 1-2 days without service.

If your physical SIM or eSIM is terminated or suspended by Three, the other may be terminated or suspended too. This may happen if you breached your Pay Monthly Mobile Agreement. This may also result in your device being blacklisted.

How can I top up my Three sim card?

The fastest way to top-up is through your My3 account, which allows you to register a credit/debit card for quick future top-ups. To do this you’ll need to log in to My3 below or register if you don’t have an account.

  • Open the Three app and go to Allowance.
  • Tap top-up, or you can choose an Add-on instead.
  • Choose your top-up amount or an Add-on, then follow the instructions to pay.

You can also top-up on the web without registering a card or logging into My3, you’ll just need to re-enter your details each time you top-up.

In any case, you can subscribe to any Three top up plan on

You just got your first Three eSIM? Top up easily and quickly with Monisnap (ex Allo)! With Monisnap, top up Three credit and data in 1 minute!

Need to top up your phone?

Monisnap, top up quickly and easily

Top up in 1 minute!

Three: top up your phone in 1mn with Monisnap (ex Allo)

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

With Monisnap, you can buy credit top up from many operators including Three top up, 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 or on the mobile application:

  • Enter the country and phone number you want to top up
  • Choose the Three mobile 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 Three mobile?

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

💥 What's My3 ?

My3 is the Three mobile feature that allows you to get access to your account and deal with your plan online!

👀 What are the tariffs for a Three eSIM?

We will all know Three eSIM tariffs in 2022, when Three will launch the service!

👌 How to top up my Three sim?

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

Yannis Rahal

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