- edited 09-17-2015 10:11 AM by ATTMobilityCare
Ever since I upgraded to an iPhone 5s I get an Error Invalid Number message when sending a text to a phone number that used to work just fine from my 4s. In fact I can receive a text from this number but when I try to reply to that text I get the error message again.
I deleted the contact info in case there was something broken there and I'm trying it with just the raw phone number but without any luck. What can I do? It's my boss's number so it's important I fix this problem.
All other contacts and texts are working just fine, it's just this one phone, a Samsung galaxy on T-mobile if that helps.
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04-09-2015 9:14 AM
Hi there @andyjhunter
I’d be happy to help with this messaging issue! This is a somewhat recurring bug for some iPhone users. To resolve this issue:
I hope this helps!
AT&T Customer Care
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04-09-2015 10:29 AM
Nope. Still didn't work. I scoured my phone for any trace of the number; contacts, texts, call logs and got rid of everything. Reset the Network Settings and tried to text the number manually, I got the same error message as before.
04-10-2015 4:28 PM
I have just experienced this problem. I have an Iphone 6 Plus and I was unable to send a message to someone standing right next to me. I could receive his text, but I could not reply back to his message, nor could I send him a message. I kept getting "Error Invalid Number. Please re-send using a valid 10 digit mobile number or valid short code." I tried with the area code, taking the area code out...nothing worked. I could call him using the same 7 digits but to texting.
04-12-2015 11:08 AM
04-15-2015 5:31 AM
I'm having the same problem on the Nokia Lumia 920 with Windows 8. I was able to text yesterday with no issues. Now all of the sudden I get the error regardless of who I text.
- edited 04-15-2015 5:37 AM
I'm also having this problem on a Windows Phone. Just started in replies to other messages this morning. :/ Tried deleting and re-adding contacts, and it still did it once I replied to their message. It replies with the error, but in the error message, it adds 11 to the ten digit phone number that is actually stored in my phone.
04-15-2015 5:47 AM
Having the same issue with my phone apparently adding "11" to a contact.
Nokia Lumia 920
This is a contact I regularly text. If I delete the thread I can send a text, but soon enough I get an the error message.
Tried texting 2 other contacts, no issues.
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