Area Code 405-303 located in SEMINOLE, SEMINOLE, OK, more detail is as below. Place NPA (Numbering Plan Area) : 405 NXX (Local Number Prefix) : 303 City : SEMINOLE County : SEMINOLE State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 1996-10-15 FIPS (Federal Information Processing Standards) : 40133 LATA (Local Access Transport Area) : 536 Rate Center : SEMINOLE ZIP Code Count : 467 ZIP Code Frequency : 99 ZIP Code : 74868 Other Information NPANXX : 405303 Switch CLLI (Common Language Location Identifier) : SMNLOKMADS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : SEMINOLE Latitude : 35.2246 Longitude : -96.6689 ‹ previous : 405-302 next › : 405-304 Telephone Number List 405-303-0000 ~ 405-303-9999