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Leave without your number

Looking to move to another network and leave your number behind? While we don’t want to see you go, we’re here to help. So, here’s everything you need to know about leaving us and switching to a new network.

Everything you need to know

First things first, we’d recommend checking when your contract ends. Because, if you leave us before the end of your minimum contract term, you may be charged an early termination fee. This will be equivalent to the monthly charges left during the minimum term of your agreement. You can find more information about this in our price guides. 

Checking when your contract ends

Want to find out when your contract ends? Or joined us in the 30 days but changed your mind? Log into My3, or get in touch with us on 0333 338 1082 or on Live Chat. 

Want to check for any outstanding charges on your account? You can check them by logging into My3 or by texting INFO and your date of birth (DDMMYY) to 85075.  

Moving to another network without your number

If you’d like to leave us and leave your number behind, you’ll need a STAC – Service Termination Authorisation Code [anchor link to H2: How to get a STAC below].  

Already requested your STAC or having trouble with it? Our support page has all the information you need.

Have you got a device plan on Three Your Way with an outstanding balance?

If you cancel your Airtime plan and have an outstanding balance left on your device plan, it must still be paid in full. You can either continue paying your regular monthly payments or pay in full by bank transfer. You can also contact us.

You can find out more in our device plan FAQs.

If you’re leaving Three and going to another network, but don’t want to keep your number you need a STAC.  

It lets you cancel your mobile number with your current network when you change to a new one. 

Your STAC’s valid for 30 days – all you need to do is give it to your new provider. They’ll do the rest. 

If you don’t use your STAC, your account will stay open and you’ll continue to be charged for your service. 

You can get your STAC by: 

Contacting us

Call us on 0333 338 1082 or start a Live Chat to get your STAC. 

Using My3 or the Three app

You can get your STAC on My3 or the Three app by following these steps: 

My3

  1. Log into My3

  2. Scroll to More Actions

  3. Select Leave Three


Three app 

[Steps tbc]

Your STAC and its expiry date will be shown immediately. And if you’re leaving before your contract end date, your early termination fee will also be shown. 

You can check your STAC information anytime – it’ll be displayed under Manage your plan. 

Sending a text 

You can get your STAC by texting STAC and your date of birth (DDMMYY) to 75075.  

E.g. 

STAC060385

Once you’ve got your STAC, you have 30 days to give it to your new provider. When you do, they’ll arrange for your account to be switched to their network and for your Three number to be closed. 

What happens if your switch fails or is delayed?

If this happens, we’d recommend contacting your new network – they’re responsible for switching your account. 

What happens if you don’t use your STAC?  

If you don’t give your STAC to your new network within 30 days and haven’t asked us to close your account, it’ll stay open and you’ll continue to be charged.

Your final bill

You’ll get your final bill within 38 days of your Three account being closed. 

Your account will stay active until you use your STAC and you’ll be billed for all your usage until your switch is completed. 

Find out more about your final bill

Your outstanding charges

You can check your outstanding charges by logging into My3 or by texting INFO and your date of birth (DDMMYY) to 85075. 

We’ll then send you a text with all the information you need. 

Can I still access My3 after closing my account? 

Your My3 account will be deactivated as soon as your account is closed. If you’ve got any queries about your account or final bill, please contact us. 

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