Area Code 605-369 located in AVON, BON HOMME, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 369 City : AVON County : BON HOMME State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46009 LATA (Local Access Transport Area) : 640 Rate Center : SPRINGFLD ZIP Code Count : 13 ZIP Code Frequency : 2 ZIP Code : 57315 Other Information NPANXX : 605369 County Population : 0 Switch CLLI (Common Language Location Identifier) : SPFDSDXADS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS OCN (Operating Company Number) : 1686 Coverage Area Name : SPRINGFIELD Latitude : 42.8572 Longitude : -97.8950 ‹ previous : 605-368 next › : 605-369 Telephone Number List 605-369-0000 ~ 605-369-9999