Area Code 405-227 located in OKLAHOMA CITY, OKLAHOMA, OK, more detail is as below. Place NPA (Numbering Plan Area) : 405 NXX (Local Number Prefix) : 227 City : OKLAHOMA CITY County : OKLAHOMA State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 40109 LATA (Local Access Transport Area) : 536 Rate Center : OKLA CITY ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 73159 Other Information NPANXX : 405227 Switch CLLI (Common Language Location Identifier) : OKCYOKMTCM1 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 : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : OKLAHOMA CITY Latitude : 35.4702 Longitude : -97.5162 ‹ previous : 405-226 next › : 405-228 Telephone Number List 405-227-0000 ~ 405-227-9999