Area Code 385-439 located in KAYSVILLE, DAVIS, UT, more detail is as below. Place NPA (Numbering Plan Area) : 385 NXX (Local Number Prefix) : 439 City : KAYSVILLE County : DAVIS State : UT (Utah) NXX Use Type : Wireless NXX Intro Version : 7/27/2011 FIPS (Federal Information Processing Standards) : 49011 LATA (Local Access Transport Area) : 660 Rate Center : KAYSVILLE ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 84037 Other Information NPANXX : 385439 County Population : 0 MSA CBSA (Core Based Statistical Area) : Ogden-Clearfield, UT MSA CBSA Code (Core Based Statistical Area) : 36260 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Overlay : L Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : KAYSVILLE Latitude : 41.0348 Longitude : -111.9327 ‹ previous : 385-428 next › : 385-468 Telephone Number List 385-439-0000 ~ 385-439-9999