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extreme_one is inviting you to join giffgaff

extreme_one

Order your free giffgaff SIM card through this page to get £5 extra credit when you activate your SIM. Get in.

Great value plans

Our SIM only plans are bundles of data, minutes and texts.

More info on prices

Free to giffgaff

Keep in touch with your friends with free calls & texts to giffgaff numbers.


You're in control

Our flexible monthly plans give you the freedom to change your plan from month to month.

One SIM fits all

Our giffgaff triple SIMs have a special all-in-one design to fit all phones (standard, micro and nano).

For free text updates on delivery status
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Your SIM will arrive within in 3-5 business days in Europe or from 5 business days for the rest of the world.

Great value plans

Our SIM only plans are bundles of data, minutes and texts.

More info on prices

Free to giffgaff

Keep in touch with your friends with free calls & texts to giffgaff numbers.


You're in control

Our flexible monthly plans give you the freedom to change your plan from month to month.

A top-notch network

Which Recommended Provider 2018

uSwitch Network of the Year winner 2019

2017 Money Super Market Best in Class SIM only.

Great service & coverage

"I joined as you get the best network with packages to suit you changeable month on month based on how YOU want to manage your account. IT'S SIMPLY BRILLIANT" shawndenton

"Only just joined giffgaff but it was a seamless and very simple thing to do. It seems to be the cheapest and most generous network that exists. A lesson to the other networks possibly?"
paulcoops

Getting started is easy

Fill in the form to get your Free SIM Card
Once it arrives activate it and top up online at giffgaff.com
Once you've topped up, pop your SIM into an Unlocked phone