Area Code 423-526 located in TAZEWELL, CLAIBORNE, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 526 City : TAZEWELL County : CLAIBORNE State : TN (Tennessee) NXX Use Type : Landline NXX Intro Version : 1996-04-15 FIPS (Federal Information Processing Standards) : 47025 LATA (Local Access Transport Area) : 474 Rate Center : NEWTAZWELL ZIP Code Count : 232 ZIP Code Frequency : 55 ZIP Code : 37879 Other Information NPANXX : 423526 County Population : 0 Switch CLLI (Common Language Location Identifier) : NWTZTNXADS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CENTURYTEL OF CLAIRBORNE DBA CENTURYLINK-CLAIBORNE OCN (Operating Company Number) : 0557 Coverage Area Name : NEW TAZEWELL Latitude : 36.4434 Longitude : -83.6017 ‹ previous : 423-526 next › : 423-527 Telephone Number List 423-526-0000 ~ 423-526-9999