Area Code 972-203 located in MESQUITE, DALLAS, TX, more detail is as below. Place NPA (Numbering Plan Area) : 972 NXX (Local Number Prefix) : 203 City : MESQUITE County : DALLAS State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1996-10-15 FIPS (Federal Information Processing Standards) : 48113 LATA (Local Access Transport Area) : 552 Rate Center : DALLAS ZIP Code Count : 257 ZIP Code Frequency : 14 ZIP Code : 75150 Other Information NPANXX : 972203 Switch CLLI (Common Language Location Identifier) : DLLSTXSUDS0 MSA CBSA (Core Based Statistical Area) : Dallas-Fort Worth-Arlington, TX MSA CBSA Code (Core Based Statistical Area) : 19100 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : SUNNYVALE Latitude : 32.8107 Longitude : -96.5630 ‹ previous : 972-202 next › : 972-203 Telephone Number List 972-203-0000 ~ 972-203-9999