Area Code 920-257 located in APPLETON, OUTAGAMIE, WI, more detail is as below. Place NPA (Numbering Plan Area) : 920 NXX (Local Number Prefix) : 257 City : APPLETON County : OUTAGAMIE State : WI (Wisconsin) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 55087 LATA (Local Access Transport Area) : 350 Rate Center : APPLETON ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 54914 Other Information NPANXX : 920257 Switch CLLI (Common Language Location Identifier) : APPLWI01DS0 MSA CBSA (Core Based Statistical Area) : Appleton, WI MSA CBSA Code (Core Based Statistical Area) : 11540 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : AMERITECH WISCONSIN OCN (Operating Company Number) : 9327 Coverage Area Name : APPLETON Latitude : 44.2625 Longitude : -88.4044 ‹ previous : 920-256 next › : 920-257 Telephone Number List 920-257-0000 ~ 920-257-9999