Area Code 256-638 located in SYLVANIA, DE KALB, AL, more detail is as below. Place NPA (Numbering Plan Area) : 256 NXX (Local Number Prefix) : 638 City : SYLVANIA County : DE KALB State : AL (Alabama) NXX Use Type : Landline NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 01049 LATA (Local Access Transport Area) : 476 Rate Center : RAINSVILLE ZIP Code Count : 426 ZIP Code Frequency : 12 ZIP Code : 35988 Other Information NPANXX : 256638 County Population : 0 Switch CLLI (Common Language Location Identifier) : RNVLALXADS1 MSA CBSA (Core Based Statistical Area) : Fort Payne, AL MSA CBSA Code (Core Based Statistical Area) : 22840 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. OCN (Operating Company Number) : 0290 Coverage Area Name : RAINSVILLE Latitude : 34.4963 Longitude : -85.8475 ‹ previous : 256-638 next › : 256-638 Telephone Number List 256-638-0000 ~ 256-638-9999