Area Code 867-870 located in FORT SMITH, , NT, more detail is as below. Place NPA (Numbering Plan Area) : 867 NXX (Local Number Prefix) : 870 City : FORT SMITH State : NT (Northwest Territories) NXX Use Type : Landline NXX Intro Version : 2006-06-01 LATA (Local Access Transport Area) : 892 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. Other Information NPANXX : 867870 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Coverage Area Name : FORT SMITH Latitude : 60.0143 Longitude : -111.8568 ‹ previous : 867-863 next › : 867-872 Telephone Number List 867-870-0000 ~ 867-870-9999