Got a call from this number but since I didn't answer, they didn't leave a message either. If I don't have your number programmed in my phone then I don't answer the calls.

Identified themselves as "SBC" a debt collector.  I told them send me documentation confirming a correct amount and I would address it.  The woman said, "Quit stalling...it's been years since you had it."  I said..."Ahh...years.  Prove the debt or leave me alone."  Then I hung up.  That debt was from 2 marriages ago!!