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Want to keep or change your number when switching to iD Mobile? You’ll need a PAC or STAC from your previous network. Watch our quick video guide to get started, or follow the detailed steps below:
Please note: If you already gave us your PAC or STAC when you bought your plan, you're all set. There's no need to submit it again. Your switch will take place on the date you picked.
What is a PAC and STAC?
- A PAC (Porting Authorisation Code) is a 9-digit code that lets you transfer your number to us.
- A STAC (Service Termination Authorisation Code) is a 9-digit code that cancels your old number if you want a fresh start.
How do I request a PAC or STAC?
You can get these from your old network for free via text. Using your old SIM:
- Text PAC to 65075.
- Text STAC to 75075.
- Text INFO to 85075 (to check contract details/exit fees).
Your code will be sent immediately and is valid for 30 days. If it expires, just request a new one.
Please note: If you have multiple numbers on your account, you’ll need to contact your old network directly.
What do I do once I’ve received my PAC or STAC?
Ready to make the switch? Awesome! Once you've got your code, give it to us in one of three ways:
- During checkout: Give us your PAC or STAC when you choose your new plan or phone.
- In the iD Mobile app or my.idmobile.co.uk: Already have your iD Mobile SIM? This is the quickest method:
- Log in and tap Plan.
- Scroll down and select Switch to iD.
- Tap I want to keep my old number (PAC) or I don’t need my old number (STAC).
- Tap the button to confirm you have your code.
- Enter the phone number you want to keep (or get rid of) and your PAC or STAC.
- Pick a convenient switching date from the calendar (any working day).
- Tick the confirmation box and hit Confirm.
- On our website: Use our online switching form at any time.
Please note: For the website form, you’ll need your Transaction Number. It starts with a 4 and can be found in your 'Order Complete' or 'Welcome to iD' emails.
Need help finding it? Check out this Community article for more helpful information.
When will my switch happen?
When you give us your PAC or STAC, we can switch or cancel your old number on the next working day by 10pm. Here are the exact timescales:
| Give us your PAC or STAC by | Switching Date |
|---|---|
| Monday before 5:30pm | Tuesday |
| Monday 5:30pm - Tuesday 5:30pm | Wednesday |
| Tuesday 5:30pm - Wednesday 5:30pm | Thursday |
| Wednesday 5:30pm - Thursday 5:30pm | Friday |
| Thursday 5:30pm - Friday 5:30pm | Monday |
| Friday 5:30pm - Monday 5:30pm | Tuesday |
Please note: During Bank Holidays, it can take a few extra days to switch your number.
What happens once my switch is complete?
On your switching day, you'll lose service on your old SIM at some point. If this happens, it's a good sign the switch is in progress.
When that happens, pop your new iD Mobile SIM into your phone (or activate your eSIM) and restart it occasionally. Once your switch is complete, we’ll send a confirmation text to your iD Mobile SIM.
If you think your switch is delayed, check out the Community article below for more information:
What if iMessage, FaceTime, or Google Messages isn't working after my switch?
Sometimes your phone holds onto the temporary number originally assigned to your SIM.
This usually fixes itself after a restart. If you're still having trouble with iMessage, FaceTime, or Google Messages showing the wrong number, check these guides:
Still need help?
Simply contact us. We’re here to help!
