This person only identifies himself as Mr. Alexander. He does not identify the agency he is calling from or the nature of the call all the message says is for me to have either myself or my attorney contact him. I believe this is a scam, has anyone else had contact with this person or number?

Sounds like the tactic that scam debt collectors use.  Even if it's a legitimate collector, they clearly have no information and are fishing for it.  Read your rights and how to tell a real from a fake debt collector here:

Your rights (what a debt collector can and cannot do).
http://www.consumer.ftc.gov/articles/0149-debt-collection

How to tell a real from a fake debt collector:
https://www.consumer.ftc.gov/articles/0258-fake-debt-collectors

FTC stops abusive debt collection:
https://www.ftc.gov/news-events/press-release ... tened-consumers

https://www.ftc.gov/enforcement/cases-proceedings/banned-debt-collectors
IRS Scams

If it were me,  I'd block the number and NEVER answer any number I don't recognize.

Sorry about double post.  Hit a glitch.

It has happened 4 times now to me

Yes. No company name. Dont trust companies like this. Probably a scam.