Unknown sender/message not found

Greetings @Gmar123,

I am glad you reached out to us! This is definitely not the experience we wish for you to encounter. Being spammed by an unknown caller can certainlyl be bothersome. Let's make sure we provide you with the right steps to get this fixed!

When it comes to receiving a call or message from an uknown sender, most devices offer a feature which will allow you to block directly through your device. Our Device Support Center provides personalized support to get this accomplished. By selecting the make and model of your device, a page with articles, tutorials, and troubleshooting tools will be listed. Please select, view all solutions.

I also invite you to view our Block unwanted wirelesss calls and messages for additional options. If the steps provided do not help, you are also more than welcome to request a number change. For an easy and convenient way to complete this, we have a great article on how to Change your wireless number.

Please let us know if this works out for you. We are always happy to provide additional support if you have any other questions or concerns.

Have an amazing rest of your day!

Vanessa, AT&T Community Specialist 

Hello AT&T... There's at least ten different threads of customers with the same problem. Perhaps you can consolidate them and address the issue in a coordinated fashion .

I've got the same problem I'm on a Galaxy S7, not an iPhone. Can you explain what's going on?

I have the same issue on my galaxy S7 and no clue who or what the texts are. Two 9f them this evening and I was on wifi

That didnt help me with the same issue and I've gone through those steps. Can someone from AT&T please post an updated response that will fix the issue?