North American Numbers
Province · 2 area codes
New Brunswick area codes
New Brunswick uses area codes 506 and 428 (428 added in 2023 as a distributed overlay of 506), serving Moncton, Saint John and Fredericton.
A · Metros
Major metro areas
Moncton Saint John Fredericton
B · Directory
All New Brunswick area codes
Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.
Sources
Canadian Numbering Administrator (CNA) ↗
Canadian Geographic Area Code Relief History — primary
Compiled by North American Numbers, last checked 2026-09-19. How this is made.