This might be American Home Shield but not sure. They don't leave messages. AHS has called from 2 other numbers and didn't leave a message either time

Firefighters Association wanting donations.  Polite but pretty high pressure.  They only guarantee 11% of your donation goes to this organization.  I suppose it could be more but that doesn't sound very efficient.

STOP CALLING ME!

Since I have caller ID, I don't answer any calls I don't recognize. I write down the # and do a search. This # is registered to a phone company, PAETEC Communications in Pittsburgh, Pa.

I did some research and would suggest that you all might go to a web site called Charity Navigator.
Firefighters Charitable Foundation (according to Charity Navigator) had an Income of $6,109,447.  Their Fundraising expenses totaled $5,326,352 and with other expenses added in, $0 went to affiliates.  There is also on record a settlement with PA Courts on July 13, 2011, where a fine of $1,000 was paid for the use of an unregistered solicitor (Menacola Marketing).  If you decide to speak with these people, you might want to ask about this info.