Area Code 231-266 located in IRONS, LAKE, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 266 City : IRONS County : LAKE State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26085 LATA (Local Access Transport Area) : 348 Rate Center : IRONS ZIP Code Count : 1415 ZIP Code Frequency : 95 ZIP Code : 49644 Other Information NPANXX : 231266 County Population : 0 Switch CLLI (Common Language Location Identifier) : IRONMIIRRS1 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : IRONS Latitude : 44.1045 Longitude : -85.9852 ‹ previous : 231-266 next › : 231-267 Telephone Number List 231-266-0000 ~ 231-266-9999