Who called from 6175916243

Regularly calls and does not answer when phone is picked up nor leaves a message.

9:00pm 3/4/2010: Call from this number.. was not familiar to me.. I did not pick up.. it went to Voicemail, but caller hung up and did not leave any message.

11:20 a.m. 4/3/10.  It comes up as "Share Group Inc.", but does not leave a message, and does not answer if you pick up.  What's the point?

Same thing no message, it calls and then hangs up.

I get from 2-5 calls a day also on Sunday's. Share Group numbers I get calls from :
202 -315-5369, 202-315-5361, 617-591-6221,202-315-5385, 202-591-6220, 202-315-5377,                   202-315-5375, 202-315-5374, 202-315-5373 ,202-315-5372, 617-591-6237, 617-591-6236..

AND I COULD GO ON!!! MAKE IT STOP PLEASE!!