Area Code 318-531 located in CLAYTON, CONCORDIA, LA, more detail is as below. Place NPA (Numbering Plan Area) : 318 NXX (Local Number Prefix) : 531 City : CLAYTON County : CONCORDIA State : LA (Louisiana) NXX Use Type : Wireless NXX Intro Version : 2002-08-04 FIPS (Federal Information Processing Standards) : 22029 LATA (Local Access Transport Area) : 486 Rate Center : SICILY IS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 71326 Other Information NPANXX : 318531 County Population : 0 Switch CLLI (Common Language Location Identifier) : ALXNLABSCM1 MSA CBSA (Core Based Statistical Area) : Natchez, MS-LA MSA CBSA Code (Core Based Statistical Area) : 35020 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - GA OCN (Operating Company Number) : 6214 Coverage Area Name : SICILY ISLAND Latitude : 31.8511 Longitude : -91.6583 ‹ previous : 318-531 next › : 318-532 Telephone Number List 318-531-0000 ~ 318-531-9999