Area Code 423-238 located in OOLTEWAH, HAMILTON, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 238 City : OOLTEWAH 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 : OOLTEWAH ZIP Code Count : 2333 ZIP Code Frequency : 94 ZIP Code : 37363 Other Information NPANXX : 423238 County Population : 0 Switch CLLI (Common Language Location Identifier) : OLTWTNXADS1 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 : CENTURYTEL OOLTEWAH-COLLEGEDALE DBA CENTURYLINK OCN (Operating Company Number) : 0574 Coverage Area Name : OOLTEWAH Latitude : 35.0769 Longitude : -85.0576 ‹ previous : 423-238 next › : 423-239 Telephone Number List 423-238-0000 ~ 423-238-9999