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K

New Member

 • 

2 Messages

Tue, Nov 30, 2021 9:02 PM

Error message - "invalid number" when texting

I have a new Iphone 13 mini.  I keep getting error messages when I try to text my friend.  Other numbers work fine, but with this one person it doesn't.  It keeps saying "Error Invalid Number. Please re-send using a valid 10 digit number."  Of course I only had typed a 10 digit number, but the phone keeps adding 1 in front of the number as soon as I start to type the text.  I have googled for answers but nothing has worked - so annoying!! I have been unable to send any texts successfully to this person.

ATTHelp

Community Support

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180.7K Messages

2 m ago

Hey there @kruffner, we'd be glad to help with your SMS concerns when sending a message to one specific contact.

 

First, please allow us to gather more information from you:

  • Have you tried resetting your device by power cycling it off, then back on?
  • Did you attempt saving the contact in your phone without the 1 added onto the number?

You can also try copying and pasting the number without the 1 added and see if that helps! Feel free to reach back out and let us know.

 

Lynn, AT&T Community Specialist

New Member

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2 Messages

2 m ago

Tried both - didn't help at all - the 1 reappears no matter what I do

ATTHelp

Community Support

 • 

180.7K Messages

2 m ago

Hi @kruffner, let's take a closer look into why you're not able to send out texts on your iPhone 13 mini. 

 

The error that you're receiving can occur if you have Advanced Messaging enabled on your device, and you may need to disable the feature. 

 

Also, we recommend deleting the SMS thread that the error occurs on and start a new thread to see if this helps.

 

You would want to make sure that your device has the most recent software update  to ensure you have the latest features and device protection options.

 

Let us know if this helps, and thank you for reaching out to the AT&T Community Forums.

 

Jeff, AT&T Community Specialist

 

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