Skip to main content
AT&T Community Forums
The epic new Samsung Galaxy S21 5G is available for preorder now!

New Member


3 Messages

Fri, Dec 4, 2020 4:53 AM

How do I set up call forwarding with prepaid?

I have a galaxy note 9 and when I tried to setup call forwarding from the phone's "call settings-call forwarding", it says "Failed to read data". I then tried to call **21*phone_number# and it shows "call forwading connection problem or invalid MMI code".

Could someone verify if AT&T Prepaid has call forwarding feature at all and if so, what should I do to enable it?




Brand User

Community Support


144.5K Messages

a month ago

Let's look into helping you set up Call Forwarding on your device, @fuzzykat!


Call Forwarding is available for AT&T PREPAID accounts. We want to know more about your experience.

  • What is the signal strength of the device, strong or poor? That alert about invalid MMI code usually occurs as a result of no or poor network connection. So that we may investigate, please reply and verify your ZIP code.
  • Is this a Bring Your Own Device (BYOD)? If so, you may need to program the carrier settings as specified here.

Let us know so that we may provide assistance with your case.


Lar, AT&T Community Specialist

Still need help? Ask a question! Our 1.4 million members typically respond within 1 hour.

*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

Get started...

Ask a new question