Skip to content

SIM & number

How to activate your SIM

Activating your new giffgaff SIM is easy. Take the SIM card we sent you and your payment method (credit/debit card or voucher) and head to the Activation Page. SIM activation takes a few seconds and after completion, you are then prompted to a wizard to help you set up your giffgaff phone.

Learn more about SIM activation

If you are a new member and want to activate a SIM card you received with your phone, please go to the Activation Page and make sure to give your member name when asked so we can activate the goodybag you already selected.

Learn more about the SIM received with your phone

Ensuring a smooth activation

Activating your SIM card is easy. If you find the activation code is rejected, you may want to try variations (e.g. 0 and O). Activation and top-up failures may be caused by your browser cache building up, so it is worth clearing the cache, restarting your browser and re-trying the activation process.

Learn more about the activation code

Learn more about incomplete activation

Length of activation

Most of the SIM cards are activated within a few seconds but it can take up to 24 hours in certain circumstances. If your activation is still ongoing after 24 hours, you can contact an agent.

Ask an agent about the activation of your SIM

Search for answers

Ask the Community

Having trouble finding the right answer? Sign into your my giffgaff account and ask the community a question. Don't be shy.

Ask a question to the Community

Ask a question to the Community

The Knowledge base

Find more FAQs in our Knowledge base