Got a phone call from this number. The caller left no message.

continue to call here for my son who does not live here- have repeatedly asked them not to call here and they continue to call as late as 9 pm

I get calls almost daily from this number. I ignored except for today, I answered the call.
A lady asked me to verify my name (which she knew) and proceeded to ask me to
verify the last 4 digits of my Social Security number. When I asked for a company
name, she said that it was a private matter and could not tell me. I hung up.
This number is leased by Line Systems Inc.
www.linesystems.com
No further info at this time