I have friends who just moved to B'Ham so thought it might be them.
Calling the number back should not do that when you are on the "Do not call" list! I would hope that there is no barrage, I do not answer if I do not know the number anyway. I work odd hours and my phone is off usually.
i also got a call from this number 3 mins b4 4pm today. i called it back and the mailbox was full. no idea who it is. i have lots of fam in B'ham but i'm sure it wasn't any of them.