Area Code 231-256 located in LELAND, LEELANAU, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 256 City : LELAND County : LEELANAU State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26089 LATA (Local Access Transport Area) : 348 Rate Center : LKLEELANAU ZIP Code Count : 602 ZIP Code Frequency : 35 ZIP Code : 49654 Other Information NPANXX : 231256 County Population : 0 Switch CLLI (Common Language Location Identifier) : LKLLMIMNRSA MSA CBSA (Core Based Statistical Area) : Traverse City, MI MSA CBSA Code (Core Based Statistical Area) : 45900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : LAKE LEELANAU Latitude : 44.9823 Longitude : -85.7177 ‹ previous : 231-255 next › : 231-256 Telephone Number List 231-256-0000 ~ 231-256-9999