Area Code 405-571 located in OKLAHOMA CITY, OKLAHOMA, OK, more detail is as below. Place NPA (Numbering Plan Area) : 405 NXX (Local Number Prefix) : 571 City : OKLAHOMA CITY County : OKLAHOMA State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 40109 LATA (Local Access Transport Area) : 536 Rate Center : STILLWATER ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 73120 Other Information NPANXX : 405571 Switch CLLI (Common Language Location Identifier) : OKCZOKZCDS0 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 : LEVEL 3 COMMUNICATIONS, LLC - OK OCN (Operating Company Number) : 5257 Coverage Area Name : STILLWATER Latitude : 36.1148 Longitude : -97.0623 ‹ previous : 405-570 next › : 405-573 Telephone Number List 405-571-0000 ~ 405-571-9999