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About Giffgaff

Giffgaff is a multi-award-winning mobile phone network founded in 2009 and owned by O2. Consumer watchdog uSwitch named Giffgaff the UK’s ‘Network of the Year’ in 2016 and again in 2017, adding to the list of reasons to consider Giffgaff’s phone or SIM-only deals.

Best of all, you don’t have to commit to a mobile phone contract of any kind, giving you total freedom to leave Giffgaff and join another mobile network as you wish – be it EE or Three, Vodafone or Virgin Mobile, for example. Not that you have much reason to make the leap…

Buy any phone from Giffgaff and it’s yours to keep forever

Whether you spread the cost with monthly payments or pay upfront, you’re free to take your mobile with you when you leave them for another network. It could be the latest iPhone X or a pre-owned mobile, with a six month warranty, thoroughly tested and wiped clean of old data and already unlocked. They became an official Apple carrier in 2014.

Call 0871 244 4842 for an immediate response to your questions or complaints, rather than waiting up to five working days for a reply from Giffgaff’s representatives.

Alternatively, opt for one of Giffgaff’s SIM-only plans

Own your own mobile? Check out Giffgaff’s SIM-only plans. You can change your plan every month to get more minutes, texts and data or cut costs with a cheaper deal – ideal if you’ve ever struggled to pay your phone bill. As little as £10 a month could get you 2GB of data, for example.

Call Giffgaff to ask which SIM-only plan is right for you, their customer services promise an honest answer, even it if it means you spend less with them.

Giffgaff have honed their SIM card offering since the very beginning. Their first product was a prepaid SIM card offering standard 2G and 3G mobile services. ‘Goodybags’ were also introduced, offering bundles of minutes, texts and data. As of 2015, all of GiffGaff’s ‘Goodybags’ come with 4G data included at no extra cost – if you don’t have a 4G ready device or you’re not in a 4G area, your device will connect to O2’s 3G service.

What network does Giffgaff use?

As Giffgaff are owned by O2, and they are one of the company’s who ‘piggyback’ O2’s British network. O2’s network is renowned for providing coverage to 99% of their customers across the UK. They’re one of six companies to use O2’s network alongside CUniq, Lycamobile, Sky Mobile, Tesco Mobile and O2 themselves. They provide their users with both 3G and 4G coverage.

On Phone

How to activate Giffgaff sim

To activate your Giffgaff sim is a simple process, you just need to do the following:

  1. Go to and enter in your unique sim code
  2. You’ll then need to either select a ‘Goodybag’ or add some credit to the sim card. You can pay for this either with a debit/credit card or a Giffgaff gift card
  3. Put your sim card into any unlocked phone and you’re good to go!

Most sim cards are activated quickly, usually within a few seconds. On some occasions, it has been known to take up to 24 hours but this is incredibly rare. If activation is taking longer than 24 hours then get in touch with their customer services team who can help you.

Giffgaff is an ancient Scottish word for ‘mutual giving’

They don’t consider themselves to be a huge corporate mobile network, because they foster a deep sense of community – you’re called a ‘member’, not their ‘customer’. And they’re keen to hear from you, whether you want to suggest a charity for them to invest in or suggest improvements for their offering and customer service.

Other Giffgaff Numbers

  1. Giffgaff Local Contact Number: 01132 023 939
  2. Giffgaff by 02: 0871 244 4842

Find out more about GiffGaff at –

Giffgaff Connection Service

0871 244 4842