Area Code 580-203 located in FORT TOWSON, CHOCTAW, OK, more detail is as below. Place NPA (Numbering Plan Area) : 580 NXX (Local Number Prefix) : 203 City : FORT TOWSON County : CHOCTAW State : OK (Oklahoma) NXX Use Type : Landline NXX Intro Version : 2004-01-27 FIPS (Federal Information Processing Standards) : 40023 LATA (Local Access Transport Area) : 536 Rate Center : FORTTOWSON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 74735 Other Information NPANXX : 580203 County Population : 0 Switch CLLI (Common Language Location Identifier) : OKCYOKFB12Z Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FULLTEL, INC. OCN (Operating Company Number) : 4589 Coverage Area Name : FORT TOWSON Latitude : 34.0176 Longitude : -95.2678 ‹ previous : 580-202 next › : 580-204 Telephone Number List 580-203-0000 ~ 580-203-9999