Area Code 423-377 located in LA FOLLETTE, CAMPBELL, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 377 City : LA FOLLETTE County : CAMPBELL State : TN (Tennessee) NXX Use Type : Wireless NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 47013 LATA (Local Access Transport Area) : 474 Rate Center : LAFOLLETTE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 37766 Other Information NPANXX : 423377 County Population : 0 Switch CLLI (Common Language Location Identifier) : LFLTTNBCCM1 MSA CBSA (Core Based Statistical Area) : La Follette, TN MSA CBSA Code (Core Based Statistical Area) : 29220 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : UNITED STATES CELLULAR CORP. - TENNESSEE OCN (Operating Company Number) : 6278 Coverage Area Name : LA FOLLETTE Latitude : 36.3832 Longitude : -84.1177 ‹ previous : 423-376 next › : 423-378 Telephone Number List 423-377-0000 ~ 423-377-9999