My daughter (she is 27 y/o and doesn't even live at home, but has the same last name) received a couple calls yesterday from this number. The first time they just hung up. The second time they asked for Steven (which is her father's name). When my daughter asked " who?" the woman hung up.
Both my daugher and I tried calling the number back, but of course with a prefix of 015 it wasn't a valid number.
She called and asked for my husband again today (using his full name). Identified herself as Sam from Lender Processing and that she was calling re a letter she sent us to refi our home loan and told her the amount of our loan (which is a matter of public record).
My daughter told her to stop calling. That if we didn't currently have business with her, we weren't interested.