Area Code 217-777 located in ADAMS, ADAMS, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 777 City : ADAMS County : ADAMS State : IL (Illinois) NXX Intro Version : 3/10/2010 Rate Center : PAYSON ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 217777 County Population : 0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 217-776 next › : 217-778 Telephone Number List 217-777-0000 ~ 217-777-9999