Area Code 810-622 located in PORT SANILAC, SANILAC, MI, more detail is as below. Place NPA (Numbering Plan Area) : 810 NXX (Local Number Prefix) : 622 City : PORT SANILAC County : SANILAC State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 26151 LATA (Local Access Transport Area) : 340 Rate Center : PT SANILAC ZIP Code Count : 1240 ZIP Code Frequency : 83 ZIP Code : 48469 Other Information NPANXX : 810622 Switch CLLI (Common Language Location Identifier) : PTSNMIMNRSA Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : PORT SANILAC Latitude : 43.4323 Longitude : -82.5453 ‹ previous : 810-622 next › : 810-623 Telephone Number List 810-622-0000 ~ 810-622-9999