Who called from 6176982949

This number keeps calling my wireless number at all hours of the day and has been going on since August.
Recent calls: 2am, 10:15am, 3:35pm, 9pm, 11:40pm

Got the same calls at 1-3am, woman leaves a message to call back for an important matter & the number doesn't accept any incoming calls.

Info from Whitepages:
Type: Land Line
Provider: Verizon

Called 11 pm, weird message to call back and the number is dead.