Area Code 423-825 located in CHATTANOOGA, HAMILTON, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 825 City : CHATTANOOGA 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 : 221 ZIP Code Frequency : 19 ZIP Code : 37409 Other Information NPANXX : 423825 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHTGTNSEDS0 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 : 34.9965 Longitude : -85.3298 ‹ previous : 423-824 next › : 423-825 Telephone Number List 423-825-0000 ~ 423-825-9999