Area Code 701-256 located in LANGDON, CAVALIER, ND, more detail is as below. Place NPA (Numbering Plan Area) : 701 NXX (Local Number Prefix) : 256 City : LANGDON County : CAVALIER State : ND (North Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 38019 LATA (Local Access Transport Area) : 636 Rate Center : LANGDON ZIP Code Count : 1587 ZIP Code Frequency : 95 ZIP Code : 58249 Other Information NPANXX : 701256 Switch CLLI (Common Language Location Identifier) : LNGDNDXADS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : UNITED TELEPHONE MUTUAL AID CORP. OCN (Operating Company Number) : 1636 Coverage Area Name : LANGDON Latitude : 48.7591 Longitude : -98.3704 ‹ previous : 701-255 next › : 701-257 Telephone Number List 701-256-0000 ~ 701-256-9999