Area Code 423-237 located in NEWPORT, COCKE, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 237 City : NEWPORT County : COCKE State : TN (Tennessee) NXX Use Type : Wireless NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 47029 LATA (Local Access Transport Area) : 474 Rate Center : NEWPORT ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 37821 Other Information NPANXX : 423237 County Population : 0 Switch CLLI (Common Language Location Identifier) : KNVLTNJHCM1 MSA CBSA (Core Based Statistical Area) : Newport, TN MSA CBSA Code (Core Based Statistical Area) : 35460 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - GA OCN (Operating Company Number) : 6214 Coverage Area Name : NEWPORT Latitude : 35.9678 Longitude : -83.1944 ‹ previous : 423-236 next › : 423-238 Telephone Number List 423-237-0000 ~ 423-237-9999