Our Best SIM Only Deals.

Our plan types explained.

*Price includes £5 monthly discount for paying by a recurring method, such as direct debit. Each May, your monthly package price will increase by an amount up to the RPI rate, published in the February that year.

SIM plan benefits.

Use your phone abroad at no extra cost.

Our Advanced Plans let you use your data allowance, text and call the UK from abroad at no extra cost with Go Roam. Available in 71 destinations including Spain and New Zealand. Find out more about Go Roam.

Control your spending.

If you run out of minutes you can block outgoing calls so you don't run up any charges. Plus you can block calls and texts to numbers that always fall outside of your allowance (like 0845 and 118).

Add extra data anytime.

Don't worry if you run out of data halfway through the month. You can buy more any time you like in your My3 account giving you all the flexibility you need.

Set usage limits and alerts.

Along with our fixed data allowances, our usage alerts for minutes and data make sure you never spend more than you planned.

Useful Information.

Switching to a new SIM plan.

Already on one of our older plans? As your minimum term has ended, you can switch to one of our new plans any time you like. It's really easy – we just move your new plan details on to your existing SIM.

Keeping your existing number.

Want to join from another network? We'd love to have you – and you can keep your old phone number, no problem.

Delivery of your SIM.

Sign up to one of our new plans today and you'll have your new SIM in 3 working days.

With Personal Hotspot, you can use your phone’s data allowance to connect up your other devices. Pretty handy for when you’re nowhere near a Wi-Fi connection. On our Essential Plans, you can’t use your inclusive data allowance to create a personal hotspot.

Our Advanced plans let you use Go Roam Around the World in 71 destinations, at no extra cost. You can also use your phone as a Personal Hotspot, and call free from your mobile to Customer Services.

With our Essential plans you’ll save some money on your contract but miss out on features such as Go Roam the World and Personal Hotspot allowance, although you’ll still be able to use Go Roam in Europe. For limits and further information - see Three.co.uk/go-roam.

With Personal Hotspot, you can use your phone’s data allowance to connect up your other devices. Pretty handy for when you’re nowhere near a Wi-Fi connection. On our Essential Plans, you can’t use your inclusive data allowance to create a personal hotspot.

Nothing should stand between you and your favourite shows, movies and music. Not even your mobile data limits.

With Go Binge, we've teamed with the likes of Snapchat, Netflix and Apple Music to make sure you can stream and snap to your heart's content, infinitely, without needing to worry about your precious data.

Our Advanced plans let you use Go Roam the World in 71 destinations, at no extra cost. You can also use your phone as a Personal Hotspot, and call free from your mobile to Customer Services.

With our Essential plans you’ll save some money on your contract but miss out on features such as Go Roam Around the World and Personal Hotspot allowance, although you’ll still be able to use Go Roam in Europe. For limits and further information - see Three.co.uk/go-roam.

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