The same company has been harassing for the better part a year now wanting to buy a property I don’t own. I have filled a DO NOT CALL registration, I have blocked their numbers multiple times, I have told them to stop calling and to remove my name from their list, and now I’m getting maybe 1 or 2 calls a day and multiple texts.
Ask your own phone company. While spoofing is relatively easy, an actual connection has to be made from a real number, and your phone company should be able to provide you with the information. Unless it’s a reseller, then it will be a lot harder.