New Brunswick Area Codes
Directory of all 2 telephone area codes assigned to New Brunswick.
New Brunswick phone numbers are served by 2 area codes operating in the Atlantic timezone.Because an overlay is active, 10-digit dialing is mandatory across much of the state. No area codes in New Brunswick are currently flagged as high-risk scams.
Most populated prefix: area code 506 (New Brunswick)
All Area Codes in New Brunswick
Major Cities Served by New Brunswick Area Codes
The most populous urban centers and census places covered by New Brunswick's area codes, ranked by population.
New Brunswick Area Code FAQs
Quick answers to common questions about New Brunswick telephone area codes.
How many area codes does New Brunswick have?
New Brunswick has 2 area codes: 428, 506.
What timezone do New Brunswick area codes use?
New Brunswick area codes operate in the Atlantic timezone.
What is the most populated area code in New Brunswick?
Area code 506 is the most populous prefix in New Brunswick based on covered city population.
Which New Brunswick area codes share an overlay?
428 and 506. Overlay codes serve the same area, which is why 10-digit dialing is required.
Are there scam area codes in New Brunswick?
New Brunswick has no area codes currently flagged as high-risk scams.
About New Brunswick Area Codes & Phone Dialing Rules
When placing calls within New Brunswick, ten-digit dialing (area code + 7-digit telephone number) is required in overlay regions where multiple area codes serve the same geographic boundaries.