Area Code 513-443 located in MASON, WARREN, OH, more detail is as below. Place NPA (Numbering Plan Area) : 513 NXX (Local Number Prefix) : 443 City : MASON County : WARREN State : OH (Ohio) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 39165 LATA (Local Access Transport Area) : 922 Rate Center : BETHANY ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 45040 Other Information NPANXX : 513443 Switch CLLI (Common Language Location Identifier) : CNCNOHFHDS0 MSA CBSA (Core Based Statistical Area) : Cincinnati-Middletown, OH-KY-IN MSA CBSA Code (Core Based Statistical Area) : 17140 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : ICG TELECOM GROUP - OH OCN (Operating Company Number) : 7163 Coverage Area Name : WEST CHESTER Latitude : 39.3830 Longitude : -84.3746 ‹ previous : 513-443 next › : 513-444 Telephone Number List 513-443-0000 ~ 513-443-9999