Area Code 810-209 located in BYRON, SHIAWASSEE, MI, more detail is as below. Place NPA (Numbering Plan Area) : 810 NXX (Local Number Prefix) : 209 City : BYRON County : SHIAWASSEE State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26155 LATA (Local Access Transport Area) : 340 Rate Center : BYRON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48418 Other Information NPANXX : 810209 Switch CLLI (Common Language Location Identifier) : PNTCMIBB2MD MSA CBSA (Core Based Statistical Area) : Owosso, MI MSA CBSA Code (Core Based Statistical Area) : 37020 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI OCN (Operating Company Number) : 0975 Coverage Area Name : BYRON Latitude : 42.8254 Longitude : -83.9389 ‹ previous : 810-208 next › : 810-210 Telephone Number List 810-209-0000 ~ 810-209-9999