Area Code 806-864 located in HART, CASTRO, TX, more detail is as below. Place NPA (Numbering Plan Area) : 806 NXX (Local Number Prefix) : 864 City : HART County : CASTRO State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 48069 LATA (Local Access Transport Area) : 544 Rate Center : EDMONDSON ZIP Code Count : 6 ZIP Code Frequency : 4 ZIP Code : 79043 Other Information NPANXX : 806864 Switch CLLI (Common Language Location Identifier) : EDSNTXXARS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTH PLAINS TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2143 Coverage Area Name : KRESS Latitude : 34.2769 Longitude : -101.8947 ‹ previous : 806-864 next › : 806-864 Telephone Number List 806-864-0000 ~ 806-864-9999