Area Code 405-203 located in WYNNEWOOD, GARVIN, OK, more detail is as below. Place NPA (Numbering Plan Area) : 405 NXX (Local Number Prefix) : 203 City : WYNNEWOOD County : GARVIN State : OK (Oklahoma) NXX Use Type : Wireless NXX Intro Version : 1997-10-11 FIPS (Federal Information Processing Standards) : 40049 LATA (Local Access Transport Area) : 536 Rate Center : OKLA CITY ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 73098 Other Information NPANXX : 405203 Switch CLLI (Common Language Location Identifier) : OKCYOKCECM2 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK OCN (Operating Company Number) : 5813 Coverage Area Name : OKLAHOMA CITY Latitude : 35.4702 Longitude : -97.5162 ‹ previous : 405-203 next › : 405-204 Telephone Number List 405-203-0000 ~ 405-203-9999