Numbers with this prefix were first introduced in 2007.While 4177636831 was originally issued with the info above, the owner of the phone number (417) 763-6831 may have transferred it through a process called porting.
I didn't answer the 'phone, but later googled the number to see if I should add it to my list of bogus numbers I keep by the 'phone. It actually came up on caller display as an International call but also showed the number being dialled from, which international calls never do (unless this has just changed?)
Caller type: Unknown
Same thing here, but this is my house phone so no voice mail..