Contents:
Most new iD Mobile SIM cards come pre-activated and ready to use. However, if you've ordered a replacement SIM (because your old one was lost or damaged) or you've upgraded to a new plan, you'll need to activate the new SIM manually.
How do I activate my physical SIM card?
You can activate your new SIM easily via the iD Mobile app or our website. You'll just need the 19-digit number printed on the back of the card holder your SIM came in.
Option 1: The iD Mobile app (Recommended)
- Open the iD Mobile app or log in to my.idmobile.co.uk.
- Tap Plan.
- Scroll down to Quick links.
- Tap Your SIM / eSIM.
- Tap Activate a replacement SIM or eSIM.
- Enter and confirm your 19-digit SIM card number.
- Tap Activate your SIM.
Option 2: Our website
If you haven't registered for the app yet, you can use our online activation page:
- Visit my.idmobile.co.uk/activate-sim-outside.
- Tap No, not yet.
- Choose your plan type and enter your iD Mobile number.
- We'll send you a security code. Enter this code to verify it's you.
- Enter your 19-digit SIM card number.
- Tap Activate your SIM.
What happens next?
Your old SIM will be disconnected immediately. Your new SIM typically activates within 1 hour, but can take up to 24 hours.
We recommend turning your phone OFF and ON again every so often to help the new SIM connect to the network.
How do I activate my eSIM?
Whether you're setting up your eSIM for the first time or replacing it, there is no separate "activation".
Once you have successfully downloaded the eSIM profile to your phone, it is ready to use. If you haven't downloaded it yet, check out the guide below:
If you've downloaded your eSIM but it isn't working, check our troubleshooting guide:
