Need help! my yahoo people?

Me and my gf are getting strange texts from a number we don’t know. It seems to be coming from a landline but cant find out more cause you got to pay. DOES anyone subscibe to one of those searches by reverse phone lookup?

just call it to see who it is.
Or get the number blocked.
Or both.

Look up by number reverse mobile phone numbers to try | reverse look up landline #s