Area Code 306-257 located in ALLAN, , SK, more detail is as below. Place NPA (Numbering Plan Area) : 306 NXX (Local Number Prefix) : 257 City : ALLAN State : SK (Saskatchewan) NXX Use Type : Landline NXX Intro Version : 1994-02-04 LATA (Local Access Transport Area) : 891 ZIP Code Count : 0 ZIP Code Frequency : 78 ZIP Code : S0K 0C0 Other Information NPANXX : 306257 County Population : 80672 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : No Coverage Area Name : ALLAN Latitude : 51.8935 Longitude : -106.0568 ‹ previous : 306-257 next › : 306-258 Telephone Number List 306-257-0000 ~ 306-257-9999