Area Code 262-434 located in OCONOMOWOC, WAUKESHA, WI, more detail is as below. Place NPA (Numbering Plan Area) : 262 NXX (Local Number Prefix) : 434 City : OCONOMOWOC County : WAUKESHA State : WI (Wisconsin) NXX Use Type : Wireless NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 55133 LATA (Local Access Transport Area) : 356 Rate Center : OCONOMOWOC ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 53066 Other Information NPANXX : 262434 County Population : 0 Switch CLLI (Common Language Location Identifier) : WKSHWIROCM1 MSA CBSA (Core Based Statistical Area) : Milwaukee-Waukesha-West Allis, WI MSA CBSA Code (Core Based Statistical Area) : 33340 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : OCONOMOWOC Latitude : 43.1103 Longitude : -88.5017 ‹ previous : 262-432 next › : 262-435 Telephone Number List 262-434-0000 ~ 262-434-9999