Area Code 254-479 located in HILLSBORO, HILL, TX, more detail is as below. Place NPA (Numbering Plan Area) : 254 NXX (Local Number Prefix) : 479 City : HILLSBORO County : HILL State : TX (Texas) NXX Use Type : Wireless NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 48217 LATA (Local Access Transport Area) : 556 Rate Center : HILLSBORO ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 76645 Other Information NPANXX : 254479 County Population : 0 Switch CLLI (Common Language Location Identifier) : HLBOTXAV1MD Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : HILLSBORO Latitude : 32.0157 Longitude : -97.1261 ‹ previous : 254-477 next › : 254-482 Telephone Number List 254-479-0000 ~ 254-479-9999