Area Code 231-583 located in LUDINGTON, MASON, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 583 City : LUDINGTON County : MASON State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 2003-02-09 FIPS (Federal Information Processing Standards) : 26105 LATA (Local Access Transport Area) : 348 Rate Center : LUDINGTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 49431 Other Information NPANXX : 231583 County Population : 0 Switch CLLI (Common Language Location Identifier) : GDRPMIBLX8Z Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC. - MI OCN (Operating Company Number) : 2550 Coverage Area Name : LUDINGTON Latitude : 43.9499 Longitude : -86.4548 ‹ previous : 231-582 next › : 231-584 Telephone Number List 231-583-0000 ~ 231-583-9999
