Area Code 320-343 located in CLINTON, BIG STONE, MN, more detail is as below. Place NPA (Numbering Plan Area) : 320 NXX (Local Number Prefix) : 343 City : CLINTON County : BIG STONE State : MN (Minnesota) NXX Use Type : Landline NXX Intro Version : 1/13/2006 FIPS (Federal Information Processing Standards) : 27011 LATA (Local Access Transport Area) : 626 Rate Center : CLINTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 56225 Other Information NPANXX : 320343 County Population : 0 Switch CLLI (Common Language Location Identifier) : STCDMNTOSMD Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : MCC TELEPHONY OF MINNESOTA, LLC - MN OCN (Operating Company Number) : 719F Coverage Area Name : CLINTON Latitude : 45.4575 Longitude : -96.4324 ‹ previous : 320-341 next › : 320-344 Telephone Number List 320-343-0000 ~ 320-343-9999