Area Code 810-278 located in ALGONAC, SAINT CLAIR, MI, more detail is as below. Place NPA (Numbering Plan Area) : 810 NXX (Local Number Prefix) : 278 City : ALGONAC County : SAINT CLAIR State : MI (Michigan) NXX Use Type : Wireless NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 26147 LATA (Local Access Transport Area) : 340 Rate Center : ALGONAC ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48001 Other Information NPANXX : 810278 Switch CLLI (Common Language Location Identifier) : SFLEMIFXCM2 MSA CBSA (Core Based Statistical Area) : Detroit-Warren-Livonia, MI MSA CBSA Code (Core Based Statistical Area) : 19820 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI OCN (Operating Company Number) : 6003 Coverage Area Name : ALGONAC Latitude : 42.6166 Longitude : -82.5333 ‹ previous : 810-277 next › : 810-280 Telephone Number List 810-278-0000 ~ 810-278-9999