Area Code 330-942 located in YOUNGSTOWN, MAHONING, OH, more detail is as below. Place NPA (Numbering Plan Area) : 330 NXX (Local Number Prefix) : 942 City : YOUNGSTOWN County : MAHONING State : OH (Ohio) NXX Use Type : Landline NXX Intro Version : 3/1/2006 FIPS (Federal Information Processing Standards) : 39099 LATA (Local Access Transport Area) : 322 Rate Center : YOUNGSTOWN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 44503 Other Information NPANXX : 330942 County Population : 0 Switch CLLI (Common Language Location Identifier) : YNTWOH74HMD MSA CBSA (Core Based Statistical Area) : Youngstown-Warren-Boardman, OH-PA MSA CBSA Code (Core Based Statistical Area) : 49660 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : YOUNGSTOWN Latitude : 41.1015 Longitude : -80.6475 ‹ previous : 330-941 next › : 330-943 Telephone Number List 330-942-0000 ~ 330-942-9999