Area Code 506-203 located in HILLSBOROUGH, , NB, more detail is as below. Place NPA (Numbering Plan Area) : 506 NXX (Local Number Prefix) : 203 City : HILLSBOROUGH State : NB (New Brunswick) NXX Use Type : Landline NXX Intro Version : 2006-06-01 LATA (Local Access Transport Area) : 890 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. Other Information NPANXX : 506203 Time Zone : Atlantic (GMT -04:00) Observes Daylight Saving Time : Yes Coverage Area Name : HILLSBOROUGH Latitude : 45.9232 Longitude : -64.6507 ‹ previous : 506-202 next › : 506-204 Telephone Number List 506-203-0000 ~ 506-203-9999