I keep getting calls from this number, about once a day.  No voice messages are left.

I receive one phone call a day from this number as well.  They always seem to call when I'm at work. (0500-1400), upon calling them back, it offers me a chance to get my name off of the list and says it takes about a day to process.  After 2 weeks now, I'm still on the list.  Doing a little more research into the matter, Google provided the info saying that the telephone number is being used by Choice One Communications.  Hopefully this will be a bit helpful to anyone else getting this phone call

Did you find out any more info?

has been calling me almost everyday, no message left.

Calls me everyday, and does not leave me message.