Who called from 8645550107

A lady called in and the call was very muffled. I couldn't hear her and the only thing I could understand is that she was trying to confirm an email address of an employee. I don't confirm emails with anyone outside our organization and I couldn't hear/understand her so I hung up.

They called wanting to confirm an e-mail address.  I gave them a fake one.  Have fun with that.

Received daily calls from this number with no answer why don't these people get a job and stop calling

got a call from this number at my office, didn't answer, company does not have call blocking. i thought the prefix "555" was reserved for movies and television...? Am i living in the Truman Show...?

Left a 20 minute voicemail where all I can here is people in the background, someone typing and someone eating something.