Area Code 508-557 located in SEEKONK, BRISTOL, MA, more detail is as below. Place NPA (Numbering Plan Area) : 508 NXX (Local Number Prefix) : 557 City : SEEKONK County : BRISTOL State : MA (Massachusetts) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 25005 LATA (Local Access Transport Area) : 128 Rate Center : SEEKONK ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 02771 Other Information NPANXX : 508557 Switch CLLI (Common Language Location Identifier) : NDHMMAEFDS0 MSA CBSA (Core Based Statistical Area) : Providence-New Bedford-Fall River, RI-MA MSA CBSA Code (Core Based Statistical Area) : 39300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : COMCAST PHONE OF MASSACHUSETTS, INC. - MA OCN (Operating Company Number) : 6101 Coverage Area Name : SEEKONK Latitude : 41.8102 Longitude : -71.3383 ‹ previous : 508-556 next › : 508-558 Telephone Number List 508-557-0000 ~ 508-557-9999