New Brunswick area codes
New Brunswick has 2 area codes, all on UTC−4 standard time. Each card shows the main cities; open one for its overlays, history and a free lookup.
FAQ
New Brunswick area code questions
How many area codes does New Brunswick have?
New Brunswick has 2 area codes in service: 428 and 506.
What is the newest area code in New Brunswick?
428, in service since April 29, 2023 as an overlay on 506.
What time zone is New Brunswick area codes in?
Atlantic.
Look up a number
Validity, carrier, line type, and region on the first pass.
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Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.