I got a call too, but didn't answer, and I have an Adobe account, but I should be paid up for the month. Seems odd that so many people are getting called all of a sudden, so I'd be careful about this number. Adobe was hacked last year, so it could be a scam.
It's an Adobe call center from overseas; outsourced employees. They call and when they get voicemail they just sit there and type on their computer without saying anything and you can hear all the other representatives talking to customers on the phone. Unprofessional.
This is weird. I, too, was on an Adobe message board just this afternoon. Less than an hour later, I got a message from this number. I don't have an account with Adobe. Strange.