I have received calls from 714-164-7558 and from 714-463-6157.  Both are California Construction.  I am in the process of blocking 23 numbers from my telephone.  I have no idea how these people get my number.  But, I am using my valuable time to google their numbers, find out that they are scammers, and then block their numbers.  I don't even answer my phone for any of these vultures.  Yet, they continue to call.  I am also on the do not call list.  That doesn't seem to help much.