Free reverse phone number search?

I just got a text from someone out of state and I have no clue who it is. I don't know anyone from that state. I don't want to reply in case it's spam or something. It doesn't seem spammy. It just said "hey, it's been a while. How have you been". I tried looking up the number and nothing came up with any info or any spam alert things. Every website I've tried won't give you the name unless you pay. I just don't answer calls or respond to text from numbers I don't know, so I'm wanting to figure it out without asking them. There is no one I can possibly think of whos number it could be, unless it's someone from high school or something, but I've gotten a new number since then, so no one from HS would have my new number.