Area Code 603-465 located in HOLLIS, HILLSBOROUGH, NH, more detail is as below. Place NPA (Numbering Plan Area) : 603 NXX (Local Number Prefix) : 465 City : HOLLIS County : HILLSBOROUGH State : NH (New Hampshire) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 33011 LATA (Local Access Transport Area) : 122 Rate Center : HOLLIS ZIP Code Count : 2091 ZIP Code Frequency : 99 ZIP Code : 03049 Other Information NPANXX : 603465 County Population : 0 Switch CLLI (Common Language Location Identifier) : HLLSNHXADS0 MSA CBSA (Core Based Statistical Area) : Manchester-Nashua, NH MSA CBSA Code (Core Based Statistical Area) : 31700 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : HOLLIS TELEPHONE COMPANY, INC. OCN (Operating Company Number) : 3321 Coverage Area Name : HOLLIS Latitude : 42.7387 Longitude : -71.5846 ‹ previous : 603-464 next › : 603-466 Telephone Number List 603-465-0000 ~ 603-465-9999