Area Code 402-667 located in YANKTON, YANKTON, NE, more detail is as below. Place NPA (Numbering Plan Area) : 402 NXX (Local Number Prefix) : 667 City : YANKTON County : YANKTON State : NE (Nebraska) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 46135 LATA (Local Access Transport Area) : 640 Rate Center : SO YANKTON ZIP Code Count : 7 ZIP Code Frequency : 6 ZIP Code : 57078 Other Information NPANXX : 402667 County Population : 0 Switch CLLI (Common Language Location Identifier) : YNTNSDCODS1 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 : QWEST CORPORATION OCN (Operating Company Number) : 9631 Coverage Area Name : SAINT HELENA Flags : The State for this record does not match the State for the ZIP Code. To keep with data reporting, the state for the Area Code is used. Latitude : 42.8858 Longitude : -97.3943 ‹ previous : 402-667 next › : 402-667 Telephone Number List 402-667-0000 ~ 402-667-9999