Caller ID says AA.
I did not pick up and they did not leave a message.
I am on the Do-not-call list, not that they probably care.

Spam calls using caller ID "AA" have been targeting my number for several months, using a fairly large number of different phone numbers, including this one. That is, once I block one of them (like this number), after a little while I get called again with the same "AA" caller id but from a different number. This is one of the more annoying of this sort: I wish the phone company would shut them down.

Consider googling "call blockers".  Many will allow blocking by CallerID, in addition to the displayed number.

>>  I wish the phone company would shut them down.  <<

The FTC and top communications companies are meeting, to determine what they can do to stop robocalls and other illegal calls.  Here is a link to a frequently updated page, showing the history and progress of their initiatives:

http://www.phonehelp.2truth.com/initiatives.html

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