Area Code 214-306 located in RICHARDSON, DALLAS, TX, more detail is as below. Place NPA (Numbering Plan Area) : 214 NXX (Local Number Prefix) : 306 City : RICHARDSON County : DALLAS State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 48113 LATA (Local Access Transport Area) : 552 Rate Center : DALLAS ZIP Code Count : 41 ZIP Code Frequency : 9 ZIP Code : 75080 Other Information NPANXX : 214306 County Population : 0 Switch CLLI (Common Language Location Identifier) : DLLSTXRNDS0 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 : DALLAS Latitude : 32.7808 Longitude : -96.7944 ‹ previous : 214-306 next › : 214-306 Telephone Number List 214-306-0000 ~ 214-306-9999