Area Code 605-564 located in LEMMON, PERKINS, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 564 City : LEMMON County : PERKINS State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 46105 LATA (Local Access Transport Area) : 638 Rate Center : SOHETTINGR ZIP Code Count : 3 ZIP Code Frequency : 3 ZIP Code : 57638 Other Information NPANXX : 605564 County Population : 0 Switch CLLI (Common Language Location Identifier) : HTNGNDXARS5 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : CONSOLIDATED TELCOM OCN (Operating Company Number) : 1607 Coverage Area Name : LODGEPOLE Latitude : 45.9978 Longitude : -102.6394 ‹ previous : 605-564 next › : 605-564 Telephone Number List 605-564-0000 ~ 605-564-9999