The province of New Brunswick, Canada is currently served by a total of 2 area codes:
These New Brunswick area codes overlay (cover the same geographic area). The first code listed is the parent code. Overlay area codes are added when no more phone numbers are available in an existing Numbering Plan Area.
| City | Area code(s) |
|---|---|
| Fredericton | 506/428 |
| Moncton | 506/428 |
| Saint John | 506/428 |