Area Code 605-267 located in GAYVILLE, YANKTON, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 267 City : GAYVILLE County : YANKTON State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46135 LATA (Local Access Transport Area) : 640 Rate Center : WAKONDA ZIP Code Count : 228 ZIP Code Frequency : 29 ZIP Code : 57031 Other Information NPANXX : 605267 County Population : 0 Switch CLLI (Common Language Location Identifier) : WKNDSDXARS1 MSA CBSA (Core Based Statistical Area) : Yankton, SD MSA CBSA Code (Core Based Statistical Area) : 49460 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : KNOLOGY COMMUNITY TELEPHONE, INC. OCN (Operating Company Number) : 1652 Coverage Area Name : IRENE Latitude : 43.0059 Longitude : -97.1065 ‹ previous : 605-266 next › : 605-267 Telephone Number List 605-267-0000 ~ 605-267-9999