When I returned the call, I recieved an automated response saying that it was a leading provider of fundraising services for "nonprofit organizations, liberal arts institutions, and private colleges, etc." I have received several calls like this recently all with different phone numbers including area codes. I'm pretty sure it isn't a scam but I have never answered when they call and they never leave messages. I hope this helped!
Called at 4:31 pm PT on 19-July-2011. Was not available. No msg left on ans machine. Caller ID shows "San Francisco CA" (415 area code is SF). We don't know anyone in SF. Been receiving a lot of fundraising calls in past 3 months from various numbers, no doubt computer generated numbers so they can't be traced. These people are crazy to think that we would provide anything for unknown and unwanted solicitations.