error invalid number

You may wish to speak to AT&T Technical or AT&T Data Support not AT&T General Care.


If you are unable to get to one of these agents. Please contact Apple at 1-800-My-iPhone and inform the tech rep of your issue. At which point you may request a product specialist at Apple and the Product Specialist will be able to get ahold of an AT&T Data Support agent to assist with this issue.


At this time it is an issue with the Data package on the iPhone from AT&T not completely being installed correctly from the cellphone towers when iPhone was originally activated.


Hope this helps a little bit. Post back if you have anymore issues 🙂

Your correct this is not normal expected behavior. It is a work around. And usually only used if you do not know the person your texting or have yet to add them to your contact list. You should be able to choose someone in your contact list and send an SMS.


I would ensure your running Software update 1.1.2 for iPhone. As well as maybe Un-sync your contacts and Re-sync them. See if maybe it resolves any conflict issues. As a last resort restore the iPhone just incase it is our software acting up. That should resolve it if it is. Beyond that one of our Technical Support Reps should be able to reach AT&T Data Support for you and see if we can do anything else before we consider a "Possible" iPhone or SIM card replacement.


Let me know how it works out.

For what it's worth I just got off the phone with ATT support, and sending the message as it said to with the area code seems to have fixed my problem. I asked why only yesterday it would start requiring this, even for mobile numbers in my same area code, and he told me that some area were beginning to mandate the use of area codes for text messages, so I just have to add area codes to my local mobile contacts.

Yes always ensure your contacts have the area code. Whether it is a local or long distance contact the sms feature requires a 10 digit phone number to work correctly. There is no need to put a 1 in front of the area code.

I'm having the same issue after I installed 1.1.3 and over the last two days I've spent over 4 hours on the phone with Apple and AT&T without them being able to fix it. We've done everything from switching it to airplane mode and back to a full restore on a new user account and the problem persists. I'm holding for second level of AT&T's tech support now but from the results so far, I doubt they'll be able to help. Thanks!

Anyone find a solution to this yet? It happens to my wife's phone only when she texts me via SMS. We've spoken to AT&T and Apple support and gotten nowhere with them.

The only way it works is if she puts in my phone number every single time she wants to text me.

This did not start happening until last week.

I am having the same problem since the update to 1.1.3. My wife, however, is not having the problem. This is very odd to me considering we both sync to the same computer. This is extremely aggravating as I can not simply reply to her text messages and have to manually input her number each time. This is ridiculous. I hope my failed texts are not counting in our 200 total per month.

Has anyone had any help yet that solves this issue?

same thing happened to me after updating to 1.1.3 with only one of my contcts. Went to both Apple and AT&T nothing they suggested worked. Apple told me to do a restore, really didn't want to do that, so I tried clearing all the texts from only that conversation ....... It works fine now!

BTW Apple said they hadn't heard of this problem...... Seems to me there are quite a few people with the same problem!

I followed some of the advice in the this thread and was able to get it all working again. I first went to the settings menus and erased all the data on the phone then restored it from iTunes. This sis not work by itself. I then went to the SMS home page and deleted all of the text conversations. After I did this all has been working again.

Note: It was not enough to just clear the conversation I had to actually delete them.

Try it without the 1 in front. I don't believe you have to dial a 1 with a mobile number...I never have, anyway. Area code + number = 10 digits. Someone correct me if I'm wrong...?

-SB

In that case, I'd contact ATT for help if I were you.