Area Code 970-984 located in NEW CASTLE, GARFIELD, CO, more detail is as below. Place NPA (Numbering Plan Area) : 970 NXX (Local Number Prefix) : 984 City : NEW CASTLE County : GARFIELD State : CO (Colorado) NXX Use Type : Landline NXX Intro Version : 1995-02-11 FIPS (Federal Information Processing Standards) : 08045 LATA (Local Access Transport Area) : 656 Rate Center : NEW CASTLE ZIP Code Count : 1449 ZIP Code Frequency : 99 ZIP Code : 81647 Other Information NPANXX : 970984 Switch CLLI (Common Language Location Identifier) : NWCSCOMARS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9636 Coverage Area Name : NEW CASTLE Latitude : 39.5712 Longitude : -107.5341 ‹ previous : 970-980 next › : 970-985 Telephone Number List 970-984-0000 ~ 970-984-9999