I don't know if it's 626, but for YEARS I've been getting a phone call from Kaiser Permanente for a Robin Pearson to make an appointment, they leave the number 1800-780-1220, and when I try to call back it's a busy signal. AHHH.

A simple prank call. Although it's not a big deal to me, it bugs my mother ALOT, and thus I've decided to try and find out what this phone number is.