Call received on our 800# on recent bill. This is the 2nd time over the last 3 months. When you call it is "not in service". Call lasted 163.4 minutes. Phone number is 541-901-0660.
I've been getting a couple of long calls in each of the last few months from California (I'm on the East Coast). Other numbers called from include 415-962-0100 and area code 213 with no number shown on the bill.
Nobody on my staff remembers receiving such calls, which are often, but not always outside of business hours. We do have an automated voice mail system 24x7.
At least this month, calling AT&T's customer service did result in the charges being reversed; not so lucky last month.