Area Code 330-378 located in LAKEVILLE, HOLMES, OH, more detail is as below. Place NPA (Numbering Plan Area) : 330 NXX (Local Number Prefix) : 378 City : LAKEVILLE County : HOLMES State : OH (Ohio) NXX Use Type : Landline NXX Intro Version : 1996-04-15 FIPS (Federal Information Processing Standards) : 39075 LATA (Local Access Transport Area) : 923 Rate Center : NASHVILLE ZIP Code Count : 73 ZIP Code Frequency : 15 ZIP Code : 44638 Other Information NPANXX : 330378 County Population : 0 Switch CLLI (Common Language Location Identifier) : NSVLOHXARS2 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : UNITED TEL. CO. OF OHIO - CENTURYLINK OCN (Operating Company Number) : 0661 Coverage Area Name : BIG PRAIRIE Latitude : 40.5989 Longitude : -82.1144 ‹ previous : 330-378 next › : 330-378 Telephone Number List 330-378-0000 ~ 330-378-9999