Area Code 331-218 located in DUPAGE, DUPAGE, IL, more detail is as below. Place NPA (Numbering Plan Area) : 331 NXX (Local Number Prefix) : 218 City : DUPAGE County : DUPAGE State : IL (Illinois) NXX Intro Version : 7/9/2013 Rate Center : WHEATON ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 331218 County Population : 0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Latitude : None Longitude : None ‹ previous : 331-216 next › : 331-220 Telephone Number List 331-218-0000 ~ 331-218-9999
