Who called from 2061234789

call several times daily but don't say any thing. Finally did say they wanted to clean the furnace because it's the law. I hung up

I keep getting calls from this number 206-123-4789.  When I answer the call disconnects.  When call back this number it is always busy.
I have Vonage but when I attempt to block this phone number, Vonage says it is unable, invalid phone number.

called two days in a row.  it's not a working number to call back.

Got a call today, said hello, got a machine saying goodbye in a female voice., looked here found comments, thanks folks... Wondering if it was a scout call for a scam call that might show up in a day or two.

called 1:41 pm unknown area code I don't answer, probable scam I will block