Area Code 931-236 located in WINCHESTER, FRANKLIN, TN, more detail is as below. Place NPA (Numbering Plan Area) : 931 NXX (Local Number Prefix) : 236 City : WINCHESTER County : FRANKLIN State : TN (Tennessee) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 47051 LATA (Local Access Transport Area) : 470 Rate Center : WINCHESTER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 37398 Other Information NPANXX : 931236 Switch CLLI (Common Language Location Identifier) : NSVMTNCFH01 MSA CBSA (Core Based Statistical Area) : Tullahoma, TN MSA CBSA Code (Core Based Statistical Area) : 46100 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : USA MOBILITY WIRELESS, INC. OCN (Operating Company Number) : 6630 Coverage Area Name : WINCHESTER Latitude : 35.1861 Longitude : -86.1174 ‹ previous : 931-235 next › : 931-237 Telephone Number List 931-236-0000 ~ 931-236-9999