caller ID showed this number. The voicemail was a recording about some "fraudulent activity" on my "account" and "you have been legally notified" sorta crap. The number they want me to call back is 844-216-5647 (it has its own separate listing on 800notes too ;). Oh yeah, "please give reference number 469934."
i'm guessing this is a scam (as opposed to debt collection).
poor recorded quality, too. i think they were trying to sound aggressive but it was more humorous than anything.