I got missed phone calls since Monday (September 10, 2012). First, I got a missed call from 415-422-2038 on Monday at 7:21pm. Next, I got a missed call from 415-422-5507 on Tuesday at 6:52pm. And then today, Wednesday, I got a missed call from 415-422-6068 at 7:52pm.God! Why is it that they are calling me at night time? When I make a return call, they didn't answer the phone. I dialed the said 3 numbers. They did not leave a voice message. This is also considered as annoying.
I think that the 3 numbers are belonged to the same company because the numbers are always 415-422-XXXX. The only difference are their last 4 numbers.
I missed a call from this number. Looking at the broader picture, I see that 415.422.6000 is the main number for the University Of San Francisco (of which I'm an alumnus). So this could have been a fund-raising call from the university.