Who called from 4052123675

Got a txt saying "hey (my name) so I called n no answer

also got a msg saying hey and my name with no reply creepy

I got a text from this number " hi _____ and that was it, how the heck do they know my name

I received a text that said "Heyy :p".  I replied "Hello, who is this?".  I received a replay that said " ;) a.dd me on S.K.Y.P.E....sn is ariannachick".  Again, I replied "Who is this?".  The response I received was "Oh no I have no signal ;(" .

I just got a text: Heyy ;D. I haven't responded and I won't now.