Area Code 918-778 located in STILWELL, ADAIR, OK, more detail is as below. Place NPA (Numbering Plan Area) : 918 NXX (Local Number Prefix) : 778 City : STILWELL County : ADAIR State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 40001 LATA (Local Access Transport Area) : 538 Rate Center : BARON ZIP Code Count : 150 ZIP Code Frequency : 80 ZIP Code : 74960 Other Information NPANXX : 918778 Switch CLLI (Common Language Location Identifier) : BARNOKXARS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : OKLAHOMA WINDSTREAM, INC. OCN (Operating Company Number) : 2011 Coverage Area Name : WESTVILLE Latitude : 35.9234 Longitude : -94.6034 ‹ previous : 918-778 next › : 918-779 Telephone Number List 918-778-0000 ~ 918-778-9999