Area Code 985-377 located in MANDEVILLE, SAINT TAMMANY, LA, more detail is as below. Place NPA (Numbering Plan Area) : 985 NXX (Local Number Prefix) : 377 City : MANDEVILLE County : SAINT TAMMANY State : LA (Louisiana) NXX Use Type : Landline NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 22103 LATA (Local Access Transport Area) : 490 Rate Center : MANDEVILLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 70471 Other Information NPANXX : 985377 Switch CLLI (Common Language Location Identifier) : MTRELAGBDS1 MSA CBSA (Core Based Statistical Area) : New Orleans-Metairie-Kenner, LA MSA CBSA Code (Core Based Statistical Area) : 35380 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : US LEC COMMUNICATIONS, INC. - LA OCN (Operating Company Number) : 0893 Coverage Area Name : MANDEVILLE Latitude : 30.3595 Longitude : -90.0658 ‹ previous : 985-375 next › : 985-379 Telephone Number List 985-377-0000 ~ 985-377-9999