Area Code 513-398 located in MASON, WARREN, OH, more detail is as below. Place NPA (Numbering Plan Area) : 513 NXX (Local Number Prefix) : 398 City : MASON County : WARREN State : OH (Ohio) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 39165 LATA (Local Access Transport Area) : 922 Rate Center : MASON ZIP Code Count : 4571 ZIP Code Frequency : 87 ZIP Code : 45040 Other Information NPANXX : 513398 Switch CLLI (Common Language Location Identifier) : MASNOHXARS1 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 : UNITED TEL. CO. OF OHIO - CENTURYLINK OCN (Operating Company Number) : 0661 Coverage Area Name : MASON Latitude : 39.3617 Longitude : -84.3152 ‹ previous : 513-398 next › : 513-399 Telephone Number List 513-398-0000 ~ 513-398-9999