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Home › Area codes › New Brunswick

Canadian area codes

New Brunswick area codes

A checked list of 2 in-service geographic area codes in New Brunswick, with their dates, overlay partners and dialing rules.

Last checked 14 October 2026

Area codes across North America

Codes in service in New Brunswick

New Brunswick has 2 geographic area codes in service: 428, 506. 506 is the oldest, dated 1955, and 428 the newest, dated 29 Apr 2023.1 The Canadian administrator describes each code's coverage in the table.2 All of New Brunswick's codes are on Atlantic time.

Area codeAdministrator coverageNPA in-service dateIn-service overlay peersTime zoneLocal calls within the code
428New Brunswick29 Apr 2023506Atlantic10 digits
506New Brunswick1955428Atlantic10 digits

Scroll the table sideways to see every column. Sources: NANPA (14 October 2026 file) and the Canadian Numbering Administrator.

History and overlays in New Brunswick

  • Before 1960: 506 (1955)
  • 2020s: 428 (29 Apr 2023)

New Brunswick's in-service overlay group is 428/506.1

  • 428/506: 506 (1955) was joined by 428 on 29 Apr 2023.

Dialing in New Brunswick

Local calls within a single area code in New Brunswick (428, 506) are all recorded as 10 digits. From any of New Brunswick's codes, local calls to another area code are all recorded as 10 digits.1

Neighbours of New Brunswick

Regions that border New Brunswick:

Rules that apply to every region are on the area-code reference.

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Further reading

Longer research pieces on this topic, each with its own source list and a downloadable PDF.

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What Phone Number to Use on Google Business Profile
A 2026 U.S. guide to choosing a Google Business Profile primary number, evaluating tracking versus a stable main line, checking account ownership, and testing calls before and after an edit.

Articles on this topic

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How to Get a Business Phone Number: Options & Costs
Learn how to get a business phone number in 2026, compare eight option types and real team pricing, and check porting, identity, toll-free and emergency-calling requirements.
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Why Your Business Number Shows as Spam Likely
A 2026 US diagnostic guide to Spam Likely labels, covering CNAM, STIR/SHAKEN, carrier testing, spoofing, and free redress routes.
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How to Check Phone Number History for a New Business
Learn how to check phone number history in 2026 before publishing a new business number: verify public listings, test calls, compare provider remedies and decide whether to accept or replace it.
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Business Call Forwarding to Cell Phone: Caller ID and Voicemail
A 2026 test guide for business calls forwarded to staff mobiles: identify the incoming number, prevent personal voicemail pickup, verify callbacks, and compare routing options.

Sources

Every regulatory and pricing claim on this page links to the primary source it came from. Figures were checked on the date shown at the top of the page; rules and prices change, so verify before relying on one.

  1. NANPA, NPA Database CSV, file dated 14 October 2026; in-service status, dates, overlay complexes, dialing plan and time zone. Retrieved 14 Oct 2026
    https://reports.nanpa.com/public/npa_report.csv
  2. Canadian Numbering Administrator, CO Code Status directory and coverage labels. Retrieved 14 Oct 2026
    https://www.cnac.ca/co_codes/co_code_status.htm

Keep reading

Reference
How overlays work
Why two codes can serve the same area and what ten-digit dialling changes.
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Get a number in New Brunswick
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