(301)223-0073 What's your scam?

Today I got 2 calls from this phone number:  (301)223-0073  UNKNOWN NAME.
Yesterday I got 2 calls from that number.
A couple of days before that I got 2 calls from that number.
And 2 calls from that number the day before that...
And a call the day before that...
The phone calls just trigger my voice mail, but never leave a message.  If I answer the call and speak, I get no response.  What's the scam? 
OK UNKNOWN NAME, I'm closing in on you.  I know you are a landline from Williamsport, Maryland.
I know your phone carrier and your zip code.  I know others regard you as scam or spam.  So, just quit the sophomoric misbehavior.
If you Southwest Desert Blogger readers wonder what you get when you phone that number, just go ahead and try.  Let me know.
Let me know if you know anything about this or if you have some of this weirdness going on on your phone.
Is the Federal NO CALL LIST working for anyone out there?
Peeved,
Your Southwest Desert Blogger

Got Irritating Weird Phone Calls?

For weeks I have been getting calls from this phone number:  (301) 223-0096.  They do not leave voice mail, they do not respond when I answer the call, and there is no response when I dial their phone number.  A reverse number search revealed that other people are getting calls from this number and trying to figure out where these calls are originating from.  What's going on?  Anyone out there know?

I don't want to float any paranoid conspiracy theories, but...why an I getting these calls every day and sometimes twice a day?  The caller ID reads, "UNKNOWN NAME" ....  Give them a call and see what I mean.