Area Code 605-204 located in MILLER, HAND, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 204 City : MILLER County : HAND State : SD (South Dakota) NXX Use Type : Wireless NXX Intro Version : 2003-02-09 FIPS (Federal Information Processing Standards) : 46059 LATA (Local Access Transport Area) : 640 Rate Center : MILLER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 57362 Other Information NPANXX : 605204 County Population : 0 Switch CLLI (Common Language Location Identifier) : HURNSDGCCM1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : MILLER Latitude : 44.5167 Longitude : -98.9931 ‹ previous : 605-203 next › : 605-205 Telephone Number List 605-204-0000 ~ 605-204-9999