Area Code 774-377 located in MATTAPOISETT, PLYMOUTH, MA, more detail is as below. Place NPA (Numbering Plan Area) : 774 NXX (Local Number Prefix) : 377 City : MATTAPOISETT County : PLYMOUTH State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 2/3/2006 FIPS (Federal Information Processing Standards) : 25023 LATA (Local Access Transport Area) : 128 Rate Center : MATTAPOSTT ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02739 Other Information NPANXX : 774377 Switch CLLI (Common Language Location Identifier) : BSTPMALLDS1 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 Overlay : L Company : XO MASSACHUSETTS, INC. OCN (Operating Company Number) : 4536 Coverage Area Name : MATTAPOISETT Latitude : 41.6603 Longitude : -70.8157 ‹ previous : 774-371 next › : 774-379 Telephone Number List 774-377-0000 ~ 774-377-9999