Keeps calling. Who is it?

I received an unsolicited call from a male offering air duct cleaning service.  When I said we didn't need it, he called me a "Fxxxer" and hung up!  Wow!

Will block based on this.  Thanks for posting.

Third party blocking service seems to already be set to intercept calls from this number on May 24, 2016.

We got a call from this number with CID name "Silver Sprin MD" during the evening of May 24, 2016.  It rang only once and did not call back.  Our third party blocking service (rhymes with SlowNoHobo) intercepts calls with caller ID numbers on their blacklist after one ring, so we assume they've already blacklisted this number.

I usually come here to 800notes to check on numbers the blocking service nixed, in case there's a mistake.  I'm posting about my recent call in case it helps others to know this CID number is already on the service's blacklist.

I think nearly all of my duct cleaning calls come from this area code.  Unfortunately it is somewhat local so I can't block the whole area code.