Called 12:13pm; Caller ID: "V20312124200"-- alphanumeric CID = bogus call
Didn't pick up; went to VM: computerized male voice asked "Hello?", then disconnected. Unsolicited robospammer.
There is no need to register on the Federal list, since, as it is clearly explained on the sign up page, your number is on there forever until you remove it. Once you take it off and put it back on, it opens up the 31 day window for legitimate telemarketers to call you.