Area Code 937-423 located in GREENVILLE, DARKE, OH, more detail is as below. Place NPA (Numbering Plan Area) : 937 NXX (Local Number Prefix) : 423 City : GREENVILLE County : DARKE State : OH (Ohio) NXX Use Type : Wireless NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 39037 LATA (Local Access Transport Area) : 328 Rate Center : GREENVILLE ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 45331 Other Information NPANXX : 937423 Switch CLLI (Common Language Location Identifier) : GNVLOHXA3MD MSA CBSA (Core Based Statistical Area) : Greenville, OH MSA CBSA Code (Core Based Statistical Area) : 24820 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : GREENVILLE Latitude : 40.0998 Longitude : -84.6363 ‹ previous : 937-422 next › : 937-424 Telephone Number List 937-423-0000 ~ 937-423-9999