40GB for £15. When you auto-renew.

Pay As You Go SIMs

Looking for a Pay As You Go SIM or eSIM? Look no further. Pay As You Go with Three has never been easier. And, with our deal, you can get extra data when you auto-renew.

Pay As You Go SIM deals

Check out our SIMs, and choose a Data Pack for ultimate value. Pick how much data you need for the month, and get unlimited calls and texts included. No commitment, cancel anytime, or auto-renew to get extra data. To get started, choose from the options below, select the Pay As You Go SIM Only plan, and then pick your Data Pack.

Auto-renew Data Packs

Our recommended

40GB

when you auto-renew

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£15

Unlimited

Enjoy Truly Unlimited Data

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£35

12GB

when you auto-renew

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£10

80GB

when you auto-renew

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£20

One-Time Data Packs

30GB

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£15

Unlimited

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£35

10GB

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£10

60GB

  • Unlimited minutes
  • Unlimited texts
  • No commitment

£20

Select the Pay As You Go plan and when you get to the Add-ons, pick a Data Pack that suits you.

Extra data deal available on selected Data Packs when you set up auto-renew on My3 or the Three app, for up to 12 months. You can buy 1 Data Pack a month and your allowance lasts 1 calendar month. For more info, see our Pay As You Go terms.

Data Packs give you more

Make your money go further. Choose your monthly data, and get unlimited minutes and texts included. And there's no commitment, so you can cancel anytime. Or auto-renew to keep it going.

Go Roam

Use your UK allowance in over 70 destinations. Call or text the UK, and use up to 12GB data/month at no extra cost.

Three+

Enjoy exclusive offers from the brands you love, like Uber Eats and Cineworld. There’s more to life with Three+.

Go Unlimited

Treat yourself to our Unlimited Data Pack. Scroll, stream, and game without limits.

5G Ready

All our Pay As You Go SIMs get access to our 5G network at no extra cost.

Not ready to pick your Pack?

If you’re not sure which Data Pack you want yet, then click Pay As You Go plan and Continue to get a free Pay As You Go SIM. Then you can choose your Data Pack later.

Exclusive extras

40GB for £15. When you auto-renew.

Dial up your data with auto-renew

Unmissable Pay As You Go deal: Set your £10, £15 or £20 Data Pack to auto-renew and get extra Pay As You Go data on us. Extra data deal available on selected Data Packs when you set up auto-renew on My3 or the Three app, for up to 12 months. For more info, see our auto-renew terms.

Three+ rewards app

Download the Three+ rewards app today and enjoy exclusive offers from the brands you love. Whether you like eating out or catching a movie, there's more to life with Three+.

Pay As You Go phones

Looking for a brand new device on Pay As You Go? Check out our range and find your perfect fit.

Top up your way

Top up online

Whether you prefer a monthly Data Pack, or to use your credit as you go, it’s quick and easy to top up online.

By app

Save your card details in the Three app to top up within seconds. Available on both iOS and Android.

By voucher

Get a Top-up voucher from loads of retailers, without needing any card details.

By phone

Dial 444 free from your Three phone, or +447782 333 444 if you're using another phone.

Switch to Three

Moving your number over to Three has never been easier. You can switch in minutes, and keep your number with a simple text.

Here to help

We do everything we can to make topping up as quick and easy as possible. But if you're having any issues, we're here to help.

Frequently asked questions

Very! You can get going in 3 easy steps:

1. Order your SIM. You can either choose your Data Pack now, or choose later once you’ve ordered your SIM.
2. Download the Three app on the Apple App Store or  Google Play Store.
3. Add your Data Pack on the app. Or top up your credit on the app, in your account, or from your browser.

To keep your Pay As You Go number active, you must use it for at least one chargeable activity - like making use of existing top-up credit or Data Pack allowance, adding top-up credit, buying a new Data Pack, or making telephone call, sending a text, or using the internet on Three’s mobile network - every 180 days.

A Data Pack lets you exchange your credit for a set amount of data with unlimited minutes and texts. If you use a lot of data, they’re better value than our standard Pay As You Go rates. Data Packs last 1 calendar month and you can change them each month to suit you.

You’ll still get unlimited minutes and texts for the rest of the month, but you’ll be charged our standard rate for any data you use. This will be taken from your existing credit. As you can only buy 1 Data Pack at a time, you'll need to wait for it to expire before you can get a new one.

No. With a Pay As You Go SIM card on Three, there’s no contract. Data Packs only last a month and there’s no commitment to buy another one. You can go back to using your credit like normal, or buy another Data Pack for the next month. You can even set up auto-renew so you’re always topped up.

Use the Three app to buy a Data Add-on, or use your credit for data at our standard rate.

When you set up auto-renew on a Data Pack, you'll get additional bonus data, on us, each month when you auto-renew, which means you can get extra data when you auto-renew on the Three app.

You can activate auto-renew on our app or My3 when you buy a Data Pack. If you already auto-renew and want to get this promotion, it’s easy. First, turn off auto-renew and wait for your Data Pack to expire. Then select a promotional Data Pack and reactivate auto-renew. Until 1 February 2024, you can get 50% extra data when you auto-renew on the Three app with our Winter Data Deal.

If you need a Pay As You Go SIM for a mobile device that only uses the internet – i.e. it doesn’t make calls or send texts – like a tablet or a Mobile Broadband hub, then you wouldn’t use a Pay As You Go phone SIM like the ones shown above, you’d need a Pay As You Go Data Only SIM. Take a look at our range of Pay As You Go Data SIM deals.

Ordering a free Pay As You Go SIM on Three is easy. All you need to do is complete our free SIM form, and sit back and wait for your SIM to arrive. Then you can add a Data Pack when you’re ready.

Pay As You Go SIMs give you freedom and flexibility, as you only pay for what you use – you’re not tied into a monthly phone contract. Pay As You Go phones and SIM users have recently used Data Packs, which give you a fixed amount of data for a fixed price for a month, which you can renew each month. But this isn’t the same as a contract, as you can opt-in and opt-out of your Data Pack each month. Traditional Pay As You Go users use credit, where you add money to your Pay As You Go account, which gets used up as you make calls, send texts, and use data. You can then top up as you go along.

When you receive your Pay As You Go SIM, insert it in your phone, and you’ll receive a text message telling you your SIM is ready to use. The best thing to do is to register on the Three app, so you can keep an eye on your usage and your spend. The SIM is automatically activated as soon as you make a call, send a text, or use your data.

Yes, if you don’t use your Pay As You Go SIM for 18 months, then it will expire. Make sure you make a call, send a text, or use your data within this time to keep your SIM active.

Yes! As long as you’ve activated your Pay As You Go SIM in the UK before you head abroad, you can use your UK allowance in any of our Go Roam destinations at no extra cost. Activate your SIM by making a call, sending a text, or using your data in the UK before you travel.

There are lots of ways to top up your Pay As You Go SIM. You’ll get the best value by adding a Data Pack and setting up auto-renew. You can do this on the Three app. You can also use the Three app to add traditional credit that you can use as you go along. Alternatively, you can top up online, or you can buy a voucher from a participating retailer, or you can top up by phone: dial 444 free from your Three phone, or +447782 333 444 if you're using another phone.

Why Three?

*Based on analysis by Ookla® of Speedtest Intelligence® data for Q1-Q2 2023. Ookla trademarks used under license and reprinted with permission.