Area Code 414-204 located in MILWAUKEE, MILWAUKEE, WI, more detail is as below. Place NPA (Numbering Plan Area) : 414 NXX (Local Number Prefix) : 204 City : MILWAUKEE County : MILWAUKEE State : WI (Wisconsin) NXX Use Type : Wireless NXX Intro Version : 3/8/2013 FIPS (Federal Information Processing Standards) : 55079 LATA (Local Access Transport Area) : 356 Rate Center : MILWAUKZN1 ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 53208 Other Information NPANXX : 414204 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 : 365 WIRELESS, LLC OCN (Operating Company Number) : 551G Coverage Area Name : MILWAUKEE Latitude : 43.0428 Longitude : -87.9488 ‹ previous : 414-203 next › : 414-205 Telephone Number List 414-204-0000 ~ 414-204-9999