Same as Gail.  Caller ID said Builder's Square.  Second call in two days, so I tried calling back.  Message was number was no longer in service.

They don't leave a message on the machine and they hang up when I answer. Caller ID says it's Builders Square

Everyday I have been getting 2 phone calls from this number. I say hello and and they hung up almost everytime.

I've been called by this number 2 or 3 times.  Same "Builders Square" ID, but they want to tell me how I can receive a home security system installed for free. When I mention that I'm on the no call list, they hang up immediately.  The last time I stopped the person and started to tell them that I'd already told them to stop calling.  The person calling hung up immediately.  Definitely a scam.  And yes, I'm also on the no call list.  Doesn't seem to matter any more.

Got a call from Jane White today from this number. yesterday she called me from415-880-5599, which is not a working number. She claims to be with the Legal Dept. of Consumer Affairs in Washington D.C.
She said that my Insured package with my Check for $450,000.00 will be delivered to my house tomorrow. They have never asked me for any personal info. Can't wait to see how this plays out. Check my post on phone number 415-880-5599 for the whole story, think I'm on page 15