I received a voicemail from this number a few minutes ago about my wireless number ending in 0565.  They didn't identify themselves or their company and those are not the last 4 digits of any phone number (cellular or otherwise) I've ever owned.

My opinion is that they are trying to extract personal information by posing as Sprint. They left an automated message about an urgent matter with my account. My account with a phone number ending in 4 digits that my phone number does not end with. I have Sprint, but this was a male computer voice, Sprint uses a female computer voice for their automated message system. They also call from a toll free number when they are reminding you about your bill.

Got a call from this number at 1 am in the morning.  If it is Sprint, they have something coming to them!!  Who does that?  Unless ur a booty call, don't call me at 1 am in the morning for a payments reminder!!

got a call supposedly from sprint about an account I do not have.  When I called them they didn't ask for information but did refer me to the Sprint fraud line but when I called that, they said they didn't have any connection to that number.

They keep calling with a message that it is "urgent" regarding my Sprint bill.  I do not have a Sprint account.  I think it is a phishing scheme.