Text msg issues

[jsz3us]

I send a msg to a contact. They reply back but it is from their phone number @vzwpix.com or @vtext. It does this occasionally but then will revert back to sending the text normal. Any clue? I attached a picture to help out.

 

[jsz3us]

I check those setting on my phone and on the phone I was getting the texts from. My next stop is Verizon but I don't expect any answers from them.