Area code 879: Newfoundland and Labrador
What is area code 879?
Area code 879 is a Canadian provinces or territories area code for Newfoundland and Labrador, on Newfoundland Time. It has 3 prefixes in service across 2 exchange areas, the largest being Corner Brook and St. John's. It shares its area with 709, so local numbers there can start with any of them. Local calls there take 10 digits.
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See the phone add-onArea code 879 facts
| Location | Newfoundland and Labrador, Canada |
|---|---|
| Time zone | Newfoundland Time |
| Overlays | 709 |
| Overlay of | 709 |
| In service since | February 17, 2024 |
| 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 |
In short: 879 is Newfoundland and Labrador (Newfoundland Time). Format checks here are free and run in your browser; the current carrier and line type need a live lookup. Bulk phone number validator · Pro + Phone plan
Local time in area code 879
America/St_Johns
Prefixes in service
3 of 792 possible
2 exchange areas
Which cities and towns use area code 879?
The Canadian Numbering Administrator records each prefix against an exchange area, usually named after its main town. These are the 879 exchange areas with the most prefixes in service.
| Exchange area | Prefixes |
|---|---|
| Corner Brook | 2 |
| St. John's | 1 |
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 879 number?
NANPA's dialling plan for 879: 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 879 | 879-555-0147 |
|---|---|
| From another US or Canadian area code | 1-879-555-0147 |
| From outside North America | +1 879 555 0147 |
| E.164, for CRMs and SMS tools | +18795550147 |
When did area code 879 start?
Area code 879 went into service on February 17, 2024 as an overlay of 709. Today 879 and 709 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 879 numbers
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- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 879 number tells you where it was issued, not what it is now.
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Area code 879 questions
- What province is area code 879?
- Area code 879 is in Newfoundland and Labrador, Canada. Its largest exchange areas by number of prefixes are Corner Brook and St. John's.
- What time zone is area code 879 in?
- Newfoundland Time.
- What area codes overlay 879?
- 709. 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 879 start?
- Area code 879 went into service on February 17, 2024 as an overlay of 709.
- Is an 879 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 879 have?
- 3 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.
- Does a valid format mean a 879 number is in service?
- No. A format check only says the digits fit the North American Numbering Plan and that 879 is an assigned code. It cannot tell whether the number is connected, who answers it or which carrier serves it today, because numbers are reassigned and ported. A live carrier lookup reports the current carrier and line type, but even that is not proof someone answers.
- Can I check a list of 879 numbers for free?
- Yes. Paste them in the list tab above or upload a CSV to the bulk phone number validator: format, E.164, country and the numbering-plan line type are free for every row, with no account. Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month).
Other area codes in Newfoundland and Labrador
All Newfoundland and Labrador area codes on the area code index.
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.