Area Code 251-231 located in CARLTON, CLARKE, AL, more detail is as below. Place NPA (Numbering Plan Area) : 251 NXX (Local Number Prefix) : 231 City : CARLTON County : CLARKE State : AL (Alabama) NXX Use Type : Landline NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 01025 LATA (Local Access Transport Area) : 480 Rate Center : JACKSON ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 36515 Other Information NPANXX : 251231 County Population : 0 Switch CLLI (Common Language Location Identifier) : JCSNALNMRS4 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : DELTACOM, INC. - AL OCN (Operating Company Number) : 4615 Coverage Area Name : JACKSON Latitude : 31.5089 Longitude : -87.8915 ‹ previous : 251-230 next › : 251-231 Telephone Number List 251-231-0000 ~ 251-231-9999