Area codes in Moncton, New Brunswick
Moncton, New Brunswick uses 2 area codes — 506 and 428. The main Moncton area code is 506.
Area codes serving Moncton
Phone numbers in Moncton are written as ten digits — for example (506) 555-0190 — and fall in the Atlantic Time zone.
How Moncton came to have 2 area codes
The original Moncton area code is 506, in service since 1955. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 428 (2023). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Moncton now uses all 2 codes and every local call is dialed with ten digits.
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Frequently asked questions
What is the area code for Moncton?
The main area code for Moncton, New Brunswick is 506. Moncton is now served by 2 area codes in total: 506, 428.
How many area codes does Moncton have?
Moncton has 2 area codes: 506, 428.
Why does Moncton have more than one area code?
As Moncton used up the numbers available in its original area code (506, in service since 1955), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Moncton number?
Dial all 10 digits — the area code (506 or 428) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.