New Brunswick is at present utilizing one region code. New Brunswick does not use any zone code overlays. Area code 506 covers the majority of the region of New Brunswick.
From 1947 until the point that 1955 New Brunswick used territory code 902. At the point when zone code 902 was set up in 1947 it served the three territories of New Brunswick, Nova Scotia and Prince Edward Island. Newfoundland and Labrador were included 1949 when they joined Canada. In 1955 territory code 902 was part to frame zone code 506 which was relegated to New Brunswick, Newfoundland and Labrador. In 1962 region code 506 was part to frame region code 709 which was doled out to Newfoundland and Labrador. Zone code 506 at that point served New Brunswick only.