1. dhiggins286's Avatar
    When texting, I'll get an error message: invalade number, use 10 digit number. But, the number I've been texting IS a 10 digit number. And, this happens at odd times; in the middle of texting or starting a new text. Then later, I'll text the same person with no problem. WTH? No one at ATT can help!!!!
    06-05-2009 12:40 PM
  2. JustinHorn's Avatar
    Maybe try putting the country code in front of the number? So in the US instead of "(305) 555-1234", you would do "+1 (305) 555-1234". Probably won't make any difference, but it's easy to do so worth a try.

    You only have issues with one phone number? Are they on the same network as you or a different provider?
    Last edited by Justin; 06-05-2009 at 07:51 PM.
    06-05-2009 12:52 PM
  3. dhiggins286's Avatar
    It's totally random. While texting back/forth to a number, several will go through, then from nowhere you'll get the error message with your next reply. An yes, all on same network, ATT.
    06-05-2009 04:17 PM
  4. GMJeff's Avatar
    See if AT&T will remove and restore the text messaging on the line, could reset it, if it is a network issue.
    06-06-2009 02:56 AM