Area Code 806-399 located in DUMAS, MOORE, TX, more detail is as below. Place NPA (Numbering Plan Area) : 806 NXX (Local Number Prefix) : 399 City : DUMAS County : MOORE State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 2005-03-27 FIPS (Federal Information Processing Standards) : 48341 LATA (Local Access Transport Area) : 546 Rate Center : DUMAS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 79029 Other Information NPANXX : 806399 Switch CLLI (Common Language Location Identifier) : DUMSTXXADS0 MSA CBSA (Core Based Statistical Area) : Dumas, TX MSA CBSA Code (Core Based Statistical Area) : 20300 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 : DUMAS Latitude : 35.8565 Longitude : -101.9759 ‹ previous : 806-398 next › : 806-400 Telephone Number List 806-399-0000 ~ 806-399-9999