Who called from 8602619005

SCAM - Incoming call from 860-261-9005; live solicitor requesting money for some 'fallen policeman' fund.  Caller stated they were on a recorded line.  Upon being told "Not interested" solicitor interrupted, talked over, and harassed call recipient, then disconnected.  Return call to 860-261-9005 results in a recording 'to be removed from our call list press 2'

Incoming call on 7/10/2016  from 860-261-9007 was a scammer also.

Said his name is Jackson Kimball soliciting for $. We are on the do not call list and have an unlisted number. He said he would call back. Very rude.

Person claims to calling for fallen police. Told him that I am not interested. He talked right over me. Told him not to call again.

How do these scammers get my unlisted landline phone number ?