It's no secret why Three bills itself as the best network for data–they carry more of it than any other provider in the UK. Join the fastest growing mobile network with coverage for 99% of the population and enjoy lightning-fast 5G connectivity, Wi-Fi calling, and a host of other must-have network features. And do it all for less with Three vouchers and Three discount codes.
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Updated October 27, 2019
Three Vouchers 2019
It's no secret why Three bills itself as the best network for data–they carry more of it than any other provider in the UK. Join the fastest growing mobile network with coverage for 99% of the population and enjoy lightning-fast 5G connectivity, Wi-Fi calling, and a host of other must-have network features. And do it all for less with Three vouchers and Three discount codes.
Three Vouchers 2019
50%OFF
Get 6 months for 50% off on select Three sim and mobile plans
Get half price on mobile phones and sim-only plans for 6 months with this Three deal.
Get Deal
Get 6 months for 50% off on select Three sim and mobile plans
Get half price on mobile phones and sim-only plans for 6 months with this Three deal.
50% Off
£5
Receive a £5 accessories voucher when you order the iPhone 11 online and pick up in store from Three
Enjoy a £5 gift towards accessories when you order any of the iPhone 11 phones online and collect it in store! Put the £5 towards a screen protector, case, and more.
Get Deal
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Receive a £5 accessories voucher when you order the iPhone 11 online and pick up in store from Three
Enjoy a £5 gift towards accessories when you order any of the iPhone 11 phones online and collect it in store! Put the £5 towards a screen protector, case, and more.
£5
£15
Add an extra 5gb of data for £15 from Three
Double your data for an extra £15 with Three add-ons. Never run out of data again!
Get Deal
Add an extra 5gb of data for £15 from Three
Double your data for an extra £15 with Three add-ons. Never run out of data again!
£15
£10
Grab Three sim only plans from £10 a month
Get 4GB of data, unlimited minutes, and unlimited texts for £10 a month from Three.
Get Deal
Grab Three sim only plans from £10 a month
Get 4GB of data, unlimited minutes, and unlimited texts for £10 a month from Three.
£10
£20
Get unlimited data for £20 a month at Three
Don't worry about limiting your surfing and streaming with this unlimited data plan for only £20! Also enjoy this offer for £0 upfront.
Get Deal
View Details
Get unlimited data for £20 a month at Three
Don't worry about limiting your surfing and streaming with this unlimited data plan for only £20! Also enjoy this offer for £0 upfront.
£20
20%OFF
Take 20% off with offers from Three for existing customers
Shop the biggest deals on mobile devices, phone plans, tablets and more from Three.
Get Deal
Take 20% off with offers from Three for existing customers
Shop the biggest deals on mobile devices, phone plans, tablets and more from Three.
20% Off
£10OFF
Get £10 off Tech21 phone cases at Three
Keep your phones secure with one of these great cases all for £10 off! Shop a wide selection of designs and styles for iPhone, Samsung and more!
Get Deal
View Details
Get £10 off Tech21 phone cases at Three
Keep your phones secure with one of these great cases all for £10 off! Shop a wide selection of designs and styles for iPhone, Samsung and more!
£10 Off
£55
Grab the new iPhone 11 with unlimited data for £55 a month at Three
Treat yourself and get the new iPhone 11 for only £55 a month AND unlimited data!
Get Deal
View Details
Grab the new iPhone 11 with unlimited data for £55 a month at Three
Treat yourself and get the new iPhone 11 for only £55 a month AND unlimited data!
£55
FREEUPGRADE
Grab a Three mobile broadband SIM with 200MB of free data per month
Order the Three Data Reward SIM and every month you'll be rewarded with an extra 200MB of free data.
Get Deal
Grab a Three mobile broadband SIM with 200MB of free data per month
Order the Three Data Reward SIM and every month you'll be rewarded with an extra 200MB of free data.
Free Upgrade
FREEUPGRADE
Enjoy up to 24GB of free data with Three broadband plans
Sign up for a Pay As You Go mobile broadband plan and receive up to 24GB preloaded for free.
Get Deal
Enjoy up to 24GB of free data with Three broadband plans
Sign up for a Pay As You Go mobile broadband plan and receive up to 24GB preloaded for free.
Free Upgrade
FREE
Get 5G at no extra cost from Three
All new and existing customers with a 5G device can enjoy full 5G speeds on their smartphones!
Get Deal
Get 5G at no extra cost from Three
All new and existing customers with a 5G device can enjoy full 5G speeds on their smartphones!
Free
£79
Get the Samsung Galaxy S10 Plus for £79 upfront
Get a brand new Samsung Galaxy S10 Plus for £79 with this unlimited data plan.
Get Deal
Get the Samsung Galaxy S10 Plus for £79 upfront
Get a brand new Samsung Galaxy S10 Plus for £79 with this unlimited data plan.
£79
£99
Grab the brand new iPhone XS for £99 from Three
Grab the brand new iPhone XS with a 4GB data plan and unlimited minutes for just £99 upfront and £51 a month.
Get Deal
Grab the brand new iPhone XS for £99 from Three
Grab the brand new iPhone XS with a 4GB data plan and unlimited minutes for just £99 upfront and £51 a month.
£99
FREEDELIVERY
Enjoy free delivery on all Three phone accessories
Worried about cracking your shiny new phone? Grab a case and screen protector from Three and have it delivered for no extra charge.
Get Deal
Enjoy free delivery on all Three phone accessories
Worried about cracking your shiny new phone? Grab a case and screen protector from Three and have it delivered for no extra charge.
Free Delivery
£10
Browse Three mobile phones from £10 a month
Find a brand new smartphone plan with data for just £10 a month from Three.
Get Deal
Browse Three mobile phones from £10 a month
Find a brand new smartphone plan with data for just £10 a month from Three.
£10
More about Three
Using the Three App
The Three app allows customers to manage their data, contact customer support, log onto their My3 account, and access exclusive Three UK deals on extra data, calls, and handset upgrades.
It's an essential tool for anyone who struggles to keep track of mobile bills, as well as pay-as-you-go customers who need to know how much credit they have remaining.
Three Network Review
Three Mobile is the fourth largest mobile phone network in the UK, and it tends to do quite well in company comparisons.
Commentators often [h]highlight[h] affordable Three phone deals, the wide range of phone models on offer, unlimited data plans ("All You Can Eat"), and strong customer support.
Three Contact Information
If customers want to get in touch with Three regarding their contract, upgrades, or how to use Three vouchers, doing so should be fairly simple. Current customers can just call 333 to access 24/7 support.
Otherwise, they can call: 0333 338 1001 (8:00-20:00 Monday to Friday, 9:00-18:00 at weekends). Online support is also available via My3 accounts.
Popular Expired Three Discount Codes
£10
Snag a Three top up for £10
Need a top up? Get a 2GB add-on from Three for £10.
Snag a Three top up for £10
Need a top up? Get a 2GB add-on from Three for £10.
£10
£20
Get Three unlimited data plans for £20
Get sim only data plans for just £20 a month from Three. This package also features unlimited minutes and texts.
Get Three unlimited data plans for £20
Get sim only data plans for just £20 a month from Three. This package also features unlimited minutes and texts.
£20
£168OFF
Take £168 off an iPhone X with unlimited data from Three
Grab the brand new iPhone X and save £168 when you purchase an unlimited data plan.
Take £168 off an iPhone X with unlimited data from Three
Grab the brand new iPhone X and save £168 when you purchase an unlimited data plan.
£168 Off