this person kept randomly texting my phone

Got a text at 2:00 am saying 'hola'.

Area code is (West) Lafayette, Indiana.

they texted me to with "hola"

im at purdue too

Same thing, the random "hola."

I got it this morning and did not notice it until this afternoon. I  replied back Hola? then I texted whacha ya doing? who ever said "nothing" then I asked who it was because I did not know the number. Did not get a reply back???