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Three SIM Cards

Unlimited data with reliable UK coverage

Why Choose Three SIM?

Reliable coverage with unlimited data and competitive pricing

Unlimited Data

Truly unlimited data for all your streaming, browsing, and downloading needs. No data caps or throttling to worry about.

  • No data caps or throttling
  • Unlimited streaming and browsing
  • High-speed 4G/5G connectivity

Flexible Contracts

Choose from 1, 12, or 24-month contracts to suit your needs. Longer contracts offer better value with reduced monthly costs.

  • 1-month rolling contract
  • 12-month contract
  • 24-month contract

UK Coverage

Excellent coverage across the UK with Three's extensive network. Stay connected wherever you go with reliable 4G and 5G service.

  • National 5G and 4G coverage
  • EU roaming available (addon)
  • WiFi calling enabled

Three SIM Pricing

Choose the contract length that works best for you

1 Month

£14.58 /month
  • Unlimited Data
  • Unlimited Voice & SMS
  • Rolling monthly contract
  • No setup fees
  • Cancel anytime
  • eSIM or Physical SIM
Get Started
Most Popular

12 Months

£12.42 /month
Save £25.92 per year
  • Unlimited Data
  • Unlimited Voice & SMS
  • 12-month contract
  • No setup fees
  • eSIM or Physical SIM
Get Started

24 Months

£10.13 /month
Save £106.80 per year
  • Unlimited Data
  • Unlimited Voice & SMS
  • 24-month contract
  • No setup fees
  • eSIM or Physical SIM
Get Started

Number Porting Available

Keep your existing phone number

Port for FREE
Three to Three porting is unavailable

Frequently Asked Questions

Everything you need to know about Three SIM cards

What is the fair usage policy?

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.

What SIM options are available?

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.

What coverage can I expect?

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.

Can I cancel my contract early?

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.

Are there any setup fees?

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.

Ready to Get Started?

Contact our sales team to order your Three SIM card today