Reliable coverage with unlimited data and competitive pricing
Truly unlimited data for all your streaming, browsing, and downloading needs. No data caps or throttling to worry about.
Choose from 1, 12, or 24-month contracts to suit your needs. Longer contracts offer better value with reduced monthly costs.
Excellent coverage across the UK with Three's extensive network. Stay connected wherever you go with reliable 4G and 5G service.
Choose the contract length that works best for you
Keep your existing phone number
Everything you need to know about Three SIM cards
Our Three SIM cards come with unlimited data subject to a 1TB fair usage policy. This means you can use up to 1TB of data per month without any restrictions. After this, speeds may be reduced but you'll still have access to data.
We offer both eSIM and Physical SIM options. eSIMs are digital and work with compatible devices, while Physical SIMs are traditional cards delivered to your address. Both options provide the same unlimited data service.
Three provides excellent national 5G and 4G coverage across the UK. You'll also have access to WiFi calling capabilities for enhanced connectivity. EU roaming is available as an addon - please contact our sales team for more information.
The 1-month plan allows you to cancel anytime. For 12 and 24-month contracts, early termination fees may apply. Please contact our sales team for specific details about your contract.
No, there are no setup fees for any of our Three SIM plans. The monthly price you see is the total cost, with no hidden charges.
Contact our sales team to order your Three SIM card today