Area Code 765-331 located in HARTFORD CITY, BLACKFORD, IN, more detail is as below. Place NPA (Numbering Plan Area) : 765 NXX (Local Number Prefix) : 331 City : HARTFORD CITY County : BLACKFORD State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 18009 LATA (Local Access Transport Area) : 336 Rate Center : HARTFORDCY ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 47348 Other Information NPANXX : 765331 Switch CLLI (Common Language Location Identifier) : HRCYIN01DS9 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH INDIANA OCN (Operating Company Number) : 9325 Coverage Area Name : HARTFORD CITY Latitude : 40.4521 Longitude : -85.3682 ‹ previous : 765-330 next › : 765-332 Telephone Number List 765-331-0000 ~ 765-331-9999