Area Code 810-205 located in PORT HURON, SAINT CLAIR, MI, more detail is as below. Place NPA (Numbering Plan Area) : 810 NXX (Local Number Prefix) : 205 City : PORT HURON County : SAINT CLAIR State : MI (Michigan) NXX Use Type : Wireless NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 26147 LATA (Local Access Transport Area) : 340 Rate Center : PORT HURON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48060 Other Information NPANXX : 810205 Switch CLLI (Common Language Location Identifier) : DTRTMIAPCM3 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 : AMERICAN MESSAGING (AM), INC. OCN (Operating Company Number) : 9748 Coverage Area Name : PORT HURON Latitude : 42.9665 Longitude : -82.4227 ‹ previous : 810-204 next › : 810-207 Telephone Number List 810-205-0000 ~ 810-205-9999