Area Code 405-574 located in AMBER, GRADY, OK, more detail is as below. Place NPA (Numbering Plan Area) : 405 NXX (Local Number Prefix) : 574 City : AMBER County : GRADY State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 40051 LATA (Local Access Transport Area) : 536 Rate Center : CHICKASHA ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 73004 Other Information NPANXX : 405574 Switch CLLI (Common Language Location Identifier) : CHCKOKMADS0 MSA CBSA (Core Based Statistical Area) : Oklahoma City, OK MSA CBSA Code (Core Based Statistical Area) : 36420 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : CHICKASHA Latitude : 35.0501 Longitude : -97.9397 ‹ previous : 405-574 next › : 405-575 Telephone Number List 405-574-0000 ~ 405-574-9999