You have nothing to gain by calling them back. They collect information to sell. If you want more salespeople calling you, go for it.

It's D&B. It's a business company verifier.

Dun & Bradstreet Credit Reporting

I also got a call from 800-872-4349 claiming to be D&B.  I called the number from the D&B website and they verified that it is their number & not a scam.

I received urgent calls from this number 5 days in a row and when I called finally, I felt the call was strange.  They claim to be from Dun & Bradstreet but I suspect it's a hacker of some sort.  Have I been compromised by verifying the name of my company?

I have received calls every day from this number.  When I returned the call, it seemed suspicious.  I fear I may have compromised myself by calling back.

I got a message to call the same number. I looked up D&B and found nothing as well.
I called. A voicemachine picks up and says they are D&B.

The entity claims to be with Dun & Bradstreet? Can anyone confirm this. I was unable to find this number listed on their site.

I may know the owner.

Why do you want to find the number?
Tell me, please.