Area Code 423-234 located in AFTON, GREENE, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 234 City : AFTON County : GREENE State : TN (Tennessee) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 47059 LATA (Local Access Transport Area) : 956 Rate Center : BAILEYTON ZIP Code Count : 214 ZIP Code Frequency : 17 ZIP Code : 37616 Other Information NPANXX : 423234 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLTNTNXARS0 MSA CBSA (Core Based Statistical Area) : Greeneville, TN MSA CBSA Code (Core Based Statistical Area) : 24620 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN OCN (Operating Company Number) : 4510 Coverage Area Name : SURGOINSVILLE Latitude : 36.3311 Longitude : -82.8385 ‹ previous : 423-233 next › : 423-234 Telephone Number List 423-234-0000 ~ 423-234-9999