Send to a Friend

What is a "Message center" when I look at my message detail of my text messages?
When I look at my text messages,I go and select Message details,it shows the date,cell phone number and everything and it includes saying “Message center” and numbers with a plus sign in front of it.What is that? And can that help me find the owner’s name of who was calling and texting me?
Using Fluther
or