never left message

I have a neurological disorder and therefore have an unlisted number.  Very few people can call as I cannot be understood any longer.  I hope this is not a bill collector as they phoned me at 8:30 pm pacific standard time.  I believe 10:30 (?) this area code time.
I would like to know if anyone can tell me if this is a business?  Private person?
Thanks for the help.

We got a call from this number today.  The caller id said it was wells fargo, and when I answered they asked to speak to my husband who was not home.  Our accounts are in good standing and they would not tell me why they were calling.  Said the person on their sceen was not me so they could not talk to me.

We have been recieving many calls from this number and those like them.  It tlso ID's itself as Wells Fargo.  We have learned not to pick up and the calls never leave a voicemail.