This is a private investigator's office.  Name of caller was Karen Williams.  They called me to verify the address of somebody I never heard of who had apparently given out my address at some point.  They used a phone number that belongs to a friend of mine that I used over 12 years ago several years before I moved into my current address.

I received a call about my son in reference to an insurance investigation. I was suspicious, but was glad I called her back. This is a private investigation company. All she was calling for was to get a message to my son. I have no idea what their conversation intelled, but he did thank me for giving him the message.

Do you have a name of this "company" or an address??

If you call that number they ID themselves as

Johnston Parker and Associates.

Most likely this group:

Johnston Parker & Associates, Garland, TX
Phone: (972) 203-1168
Email: christinewood@jpainfo.com
Web: www.jpainfo.com

BBB gives them an address of:

JPA / Johnston, Parker & Associates Inc.
PO Box 497377
Garland, TX 75049

Skip tracers so far as I can tell.