I got the same as you. Only it was textiegirly597.

Yeah i just got it too...no reply yet...hella wierd.

Got a text that said "hey Lindsey." I said who is this? and they replied saying "haha if u wanna know who this is u got to addd me on yahoo messenger, my id is textiewoman856. what a weirdo!

I got the same text message from 520-441-4516. They knew my first name, which is unusual, so I thought it might really be a friend.  Searches on the mobile number turned up nothing, only that it was from Tucson. I don't know anyone in Tucson.

Texted, "Who is this?" back and got reply: "LOL if you wanna know who this is you got to add me on Yahoo msger. My ID is txtgirly651."

Searching for the Yahoo ID pulled up this chain.  Passing along additional information in case any one else can use it to avoid phishing.