Area Code 218-221 located in DULUTH, SAINT LOUIS, MN, more detail is as below. Place NPA (Numbering Plan Area) : 218 NXX (Local Number Prefix) : 221 City : DULUTH County : SAINT LOUIS State : MN (Minnesota) FIPS (Federal Information Processing Standards) : 27137 Rate Center : DULUTH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 55802 Other Information NPANXX : 218221 County Population : 0 Switch CLLI (Common Language Location Identifier) : DLTHMNEH6MD MSA CBSA (Core Based Statistical Area) : Duluth, MN-WI MSA CBSA Code (Core Based Statistical Area) : 20260 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 218-220 next › : 218-222 Telephone Number List 218-221-0000 ~ 218-221-9999