Area Code 978-541 located in SALEM, ESSEX, MA, more detail is as below. Place NPA (Numbering Plan Area) : 978 NXX (Local Number Prefix) : 541 City : SALEM County : ESSEX State : MA (Massachusetts) NXX Use Type : Landline FIPS (Federal Information Processing Standards) : 25009 LATA (Local Access Transport Area) : 128 Rate Center : SALEM ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 01970 Other Information NPANXX : 978541 Switch CLLI (Common Language Location Identifier) : BSTPMALLDS0 MSA CBSA (Core Based Statistical Area) : Boston-Cambridge-Quincy, MA-NH MSA CBSA Code (Core Based Statistical Area) : 14460 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AT&T LOCAL OCN (Operating Company Number) : 7421 Coverage Area Name : ATHOL Latitude : 42.5942 Longitude : -72.2239 ‹ previous : 978-540 next › : 978-542 Telephone Number List 978-541-0000 ~ 978-541-9999