Who called from 2135503111

I picked up.  No one there.

Got a call from this number, I don't know anyone in Los Angeles....who's calling me

I just got one from this #, no doubt a telemarketer, I don't answer any calls that I don't recognize the #. Anyone I talk to is in my address book and a name will pop up, no name, no answer.

Looks like a new telemarketer number!  Wonder if it's "cardmember services" out of AZ calling from a new area code?

I've been getting calls from this number repeatedly and then they hang up!  I'm on the do not call registry - can't this be stopped.