Area Code 920-635 located in PLYMOUTH, SHEBOYGAN, WI, more detail is as below. Place NPA (Numbering Plan Area) : 920 NXX (Local Number Prefix) : 635 City : PLYMOUTH County : SHEBOYGAN State : WI (Wisconsin) NXX Use Type : Landline NXX Intro Version : 12/8/2005 FIPS (Federal Information Processing Standards) : 55117 LATA (Local Access Transport Area) : 356 Rate Center : PLYMOUTH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 53073 Other Information NPANXX : 920635 Switch CLLI (Common Language Location Identifier) : PLMOWIXADSZ MSA CBSA (Core Based Statistical Area) : Sheboygan, WI MSA CBSA Code (Core Based Statistical Area) : 43100 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : LEVEL 3 COMMUNICATIONS, LLC - WI OCN (Operating Company Number) : 5489 Coverage Area Name : PLYMOUTH Latitude : 43.7509 Longitude : -87.9812 ‹ previous : 920-634 next › : 920-636 Telephone Number List 920-635-0000 ~ 920-635-9999