This guide explains how to switch from Chattr to Grade Mobile and keep your mobile number.
Most number transfers complete within 1 to 2 working days once Grade Mobile has your PAC code.
If you want a new number instead, text STAC to 75075 and give the code to Grade Mobile.
This switch will take you from O2's network to EE's network. Coverage may differ in some areas. Check Grade Mobile's coverage checker before switching.
Joining Grade Mobile and leaving Chattr
Select which network you would like to switch from and to and we will give you precise instructions on how to keep your number when switching to a new SIM Only Deal. Show Quick Links
- Transfer your number from 1pMobile to Grade Mobile
- Transfer your number from Asda Mobile to Grade Mobile
- Transfer your number from Chattr to Grade Mobile
- Transfer your number from EcoTalk to Grade Mobile
- Transfer your number from EE to Grade Mobile
- Transfer your number from Giffgaff to Grade Mobile
- Transfer your number from Honest Mobile to Grade Mobile
- Transfer your number from iD Mobile to Grade Mobile
- Transfer your number from Lebara to Grade Mobile
- Transfer your number from Lycamobile to Grade Mobile
- Transfer your number from Mozillion to Grade Mobile
- Transfer your number from O2 to Grade Mobile
- Transfer your number from ParentShield to Grade Mobile
- Transfer your number from Sky Mobile to Grade Mobile
- Transfer your number from Smarty to Grade Mobile
- Transfer your number from Spusu to Grade Mobile
- Transfer your number from Talk Home to Grade Mobile
- Transfer your number from Talkmobile to Grade Mobile
- Transfer your number from Tesco Mobile to Grade Mobile
- Transfer your number from Three to Grade Mobile
- Transfer your number from Vodafone to Grade Mobile
- Transfer your number from Voxi to Grade Mobile
To keep your number, request a PAC code from Chattr and give it to Grade Mobile.
You can usually give Grade Mobile your PAC code when you order, or after your new SIM card or eSIM has been activated.
1. Request a PAC code from Chattr
Here is how to get your PAC (Porting Authorisation Code) from Chattr:
- Text: Text "PAC" to 65075 from your Chattr phone. You will get a text back with your code within a minute. This is a free service from Ofcom (the UK's communications regulator).
- Email: Email Chattr at hello@chattr.co.uk to request your PAC code.
Chattr is an online-only network with no stores or phone line.
2. Order a SIM only deal from Grade Mobile
If you have not ordered yet, compare current Grade Mobile SIM only deals below.
If you already have your new SIM, continue to Step 3.
If Grade Mobile asks for your PAC code during checkout, enter it there. If not, wait for your new SIM or eSIM to activate, then give Grade Mobile the PAC code using the method below.
Grade Mobile is best known for refurbished phones, and you can bundle a refurbished handset with its SIM plans.
Grade Mobile does not run a credit check, so there is nothing to wait for during sign-up.
3. Give the PAC code to Grade Mobile
Once you have your PAC code, here is how to give it to Grade Mobile:
- Online: Enter your PAC code at checkout when you order, or give it to Grade Mobile via their online contact form or by emailing contact@grademobile.co.uk.
- Phone: Call Grade Mobile on 0808 175 2343 and give them your PAC code.
4. Wait for your number transfer to Grade Mobile to complete
Grade Mobile will send the transfer request to Chattr.
Your number should move to your new Grade Mobile SIM within 1 to 2 working days.





















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