got a text from this number.  when i called it back it was an automated message.  they asked if you wanted your own texting number or something like that. i just hung up

Got a text from it. Said "Hi *my first name*" I responded with "Hello." No response. Junk number.

Text conversation went like this:
626-269-2161: Hey Anna.
Me: sorry, who is this?
626-269-2161: lol if you want to know who I am add me on Y! Msger. My username is txtflirty7. :)
Me: ???

No reponse.

626-269-2161: hola Seth!!!
Me: Hi, Who's this?
626-269-2161: Lol of u wana know who this is u got to add me on Yahoo msger, my name is textiegirly0
Me: [***] junk....

The number texted me saying "Hey (my name)"???
I didn't reply because I looked it up and found these results.
I hate stupid spam...wish there was a way to know how they got my number in the first place and how I could block it.