Area code

NEW BRUNSWICK

Canada geographic area code, in service since 2023-04-29. Part of the 428/506 overlay complex — ten-digit dialing required.

Split from 506. Overlaid with 506 .

Statusin service

Introduced2023-04-29

JurisdictionNEW BRUNSWICK, CANADA

Local dialing10D

Time zoneAtlantic

Last verified2026-09-17

Area codes serve rate-center geographies, not municipal boundaries. “NEW BRUNSWICK” identifies the jurisdiction, not an exact city footprint.

Change history

Recorded events for this NPA

2022-08-19 NPA 428 to Overlay NPA 506 (New Brunswick, Canada) - supersedes PL-553 overlay
2023-04-29Area code 428 entered service (created from 506).

Primary documents

NANPA planning letters for area code 428
Date	Document	Subject
2022-08-19	PL-600 ↗	NPA 428 to Overlay NPA 506 (New Brunswick, Canada) - supersedes PL-553
2020-12-08	PL-553 ↗	NPA 428 to Overlay NPA 506 (New Brunswick, Canada) supersedes PL549
2020-12-01	PL-549 ↗	NPA 428 to Overlay NPA 506 (New Brunswick, Canada)
2020-05-06	PL-539 ↗	NPA 428 to Overlay NPA 506 (New Brunswick, Canada)
2018-09-24	PL-522 ↗	NPA 428 to Overlay NPA 506 (New Brunswick, Canada)