Three Bundle Activation – Add Data to Your SIM

Already have a Three pay as you go SIM? Choose a bundle, enter your number and we add it for you – no voucher to type in, nothing posted.

Three runs its own 4G and 5G network and is known for generous data bundles.

Choose your option

• £10 – 20GB data, unlimited minutes & texts: £10.99
• £15 – 75GB data, unlimited minutes & texts: £15.99
• £20 – 150GB data, unlimited minutes & texts: £20.99
• £35 – unlimited data, minutes & texts: £35.99

How bundle activation works

1. Choose a bundle and type the mobile number of your Three pay as you go SIM.
2. Pay with PayPal or card.
3. We add the bundle to that number, usually within minutes, and confirm by email.

Check the number carefully – a bundle added to the wrong number cannot be moved.

Keeping your Three number

Three needs at least one chargeable use every 180 days – a top-up counts. Once you have the SIM you can top it up any time with our Three top up vouchers, sent by email in minutes – handy if you live abroad and want to keep your UK number.

Questions

Which SIMs can I use this on?
Any Three pay as you go SIM. It does not work on contract (pay monthly) numbers.

How quickly is the bundle added?
Usually within minutes of payment. We email you when it is done.

Can I use it from abroad?
Yes – you only need your number. Using the bundle abroad follows the network’s roaming terms.

Related Three products

Prefer plain credit? Use a Three top-up voucher if you prefer a code you can save or forward or Three direct top up to send credit straight to a number. Do not have a Three SIM yet? Order a SIM card, an eSIM or a preloaded SIM. All bundle options are on our bundle activation page.