Area Code 423-870 located in HIXSON, HAMILTON, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 870 City : HIXSON County : HAMILTON State : TN (Tennessee) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 47065 LATA (Local Access Transport Area) : 472 Rate Center : CHATTNOOGA ZIP Code Count : 1072 ZIP Code Frequency : 35 ZIP Code : 37343 Other Information NPANXX : 423870 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHTGTNRBDS0 MSA CBSA (Core Based Statistical Area) : Chattanooga, TN-GA MSA CBSA Code (Core Based Statistical Area) : 16860 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL OCN (Operating Company Number) : 9419 Coverage Area Name : CHATTANOOGA Latitude : 35.1169 Longitude : -85.2935 ‹ previous : 423-869 next › : 423-870 Telephone Number List 423-870-0000 ~ 423-870-9999