Area Code 734-204 located in DEXTER, WASHTENAW, MI, more detail is as below. Place NPA (Numbering Plan Area) : 734 NXX (Local Number Prefix) : 204 City : DEXTER County : WASHTENAW State : MI (Michigan) NXX Use Type : Wireless NXX Intro Version : 2/1/2013 FIPS (Federal Information Processing Standards) : 26161 LATA (Local Access Transport Area) : 340 Rate Center : DEXTER ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 48130 Other Information NPANXX : 734204 MSA CBSA (Core Based Statistical Area) : Ann Arbor, MI MSA CBSA Code (Core Based Statistical Area) : 11460 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 : DEXTER Latitude : 42.3361 Longitude : -83.8850 ‹ previous : 734-202 next › : 734-205 Telephone Number List 734-204-0000 ~ 734-204-9999