Area Code 806-938 located in HART, CASTRO, TX, more detail is as below. Place NPA (Numbering Plan Area) : 806 NXX (Local Number Prefix) : 938 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) : 546 Rate Center : HART ZIP Code Count : 442 ZIP Code Frequency : 100 ZIP Code : 79043 Other Information NPANXX : 806938 Switch CLLI (Common Language Location Identifier) : HARTTXXARS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW OCN (Operating Company Number) : 1181 Coverage Area Name : HART Latitude : 34.3895 Longitude : -102.1174 ‹ previous : 806-937 next › : 806-939 Telephone Number List 806-938-0000 ~ 806-938-9999