Area Code 603-521 located in LONDONDERRY, ROCKINGHAM, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 521 City : LONDONDERRY County : ROCKINGHAM State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 33015 LATA (Local Access Transport Area) : 122 Rate Center : NASHUA ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 03053 Other Information NPANXX : 603521 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNCHNHCOA02 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 : NASHUA Latitude : 42.7610 Longitude : -71.4634 ‹ previous : 603-521 next › : 603-522 Telephone Number List 603-521-0000 ~ 603-521-9999
