New Brunswick Area Codes
Complete directory of all 2 active area codes serving New Brunswick, Canada. Population: 834,717 (2023 Statistics Canada estimate).
About Area Codes in New Brunswick
New Brunswick (NB) is a Canadian province in the Atlantic region. With a 2023 Statistics Canada population estimate of 834,717 residents, New Brunswick is served by 2 active area codes: 428, 506. The provincial capital is Fredericton and the largest city is Moncton.
Canadian area code assignments are managed by the Canadian Numbering Administrator (CNA) under the broader North American Numbering Plan (NANP). As New Brunswick's population and demand for phone numbers grew — driven by cell phones, VoIP lines, and pagers — regulators either split existing area codes or added overlay codes that share territory with the original.
New Brunswick observes the Atlantic time zone. Most of Canada observes Daylight Saving Time from the second Sunday in March through the first Sunday in November, except parts of Saskatchewan which stays on Central Standard Time year-round.
When you receive a call from a New Brunswick number, the area code tells you only where the number was originally assigned. Because of Local Number Portability (LNP), Canadian callers can keep their phone numbers when moving across provincial lines — so a 428 number is no longer a guarantee the caller is physically in New Brunswick.
Phone number format in New Brunswick
All New Brunswick phone numbers follow the standard 10-digit NANP format: (NPA) NXX-XXXX. For local calls within New Brunswick, 10-digit dialing is mandatory because of overlay codes. For long-distance calls within Canada or to the US, dial 1 + area code + 7-digit number. From outside North America, dial your international access prefix, then 1 (the NANP country code), then the 10-digit number.
Frequently asked questions about New Brunswick area codes
How many area codes does New Brunswick have?
New Brunswick currently has 2 active area codes: 428, 506.
What time zone is New Brunswick in?
New Brunswick observes the Atlantic time zone.
What is New Brunswick's capital?
The capital of New Brunswick is Fredericton. The largest city is Moncton.