Area Code 830-999 located in CATARINA, DIMMIT, TX, more detail is as below. Place NPA (Numbering Plan Area) : 830 NXX (Local Number Prefix) : 999 City : CATARINA County : DIMMIT State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 48127 LATA (Local Access Transport Area) : 566 Rate Center : CATARINA ZIP Code Count : 106 ZIP Code Frequency : 100 ZIP Code : 78836 Other Information NPANXX : 830999 Switch CLLI (Common Language Location Identifier) : CTRNTXCRRS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : ASHERTON Latitude : 28.3479 Longitude : -99.6132 ‹ previous : 830-998 next › : 831-203 Telephone Number List 830-999-0000 ~ 830-999-9999