Area code 506: New Brunswick
Area code 506 is a Canadian province area code for New Brunswick, on Atlantic Time. It has 677 prefixes in service across 88 exchange areas, the largest being Moncton, Saint John and Fredericton. It shares its area with 428, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 506
America/Halifax
Prefixes in service
677 of 792 possible
88 exchange areas
Area code 506 facts
| Location | New Brunswick, Canada |
|---|---|
| Time zone | Atlantic Time |
| Overlays | 428 |
| In service since | January 1, 1955 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 506?
The Canadian Numbering Administrator records each prefix against an exchange area, usually named after its main town. These are the 506 exchange areas with the most prefixes in service. 76 smaller ones aren't listed.
| Exchange area | Prefixes |
|---|---|
| Moncton | 79 |
| Saint John | 77 |
| Fredericton | 55 |
| Miramichi | 28 |
| Bathurst | 27 |
| Edmundston | 23 |
| Campbellton | 16 |
| Woodstock | 15 |
| Tracadie | 15 |
| Florenceville | 14 |
| Grand Falls | 14 |
| Sussex | 14 |
Source: Canadian Numbering Administrator CO code status, file dated 2026-10-16. Each prefix holds up to 10,000 numbers.
How do I dial a 506 number?
NANPA's dialling plan for 506: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 506 | 506-555-0147 |
|---|---|
| From another US or Canadian area code | 1-506-555-0147 |
| From outside North America | +1 506 555 0147 |
| E.164, for CRMs and SMS tools | +15065550147 |
When did area code 506 start?
Area code 506 went into service on January 1, 1955. Today 506 and 428 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 506 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 506 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 506 questions
- What province is area code 506?
- Area code 506 is in New Brunswick, Canada. Its largest exchange areas by number of prefixes are Moncton, Saint John, Fredericton, Miramichi and Bathurst.
- What time zone is area code 506 in?
- Atlantic Time.
- What area codes overlay 506?
- 428. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 506 start?
- Area code 506 went into service on January 1, 1955.
- Is a 506 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 506 have?
- 677 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in New Brunswick
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and exchange areas: Canadian Numbering Administrator CO code status, 2026-10-16. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.