Area Code 343 — Ontario
This is a Canadian area code
Area code 343 is located in Ontario, Canada. Canada shares the North American Numbering Plan (NANPA) with the US, so Canadian numbers use the same 10-digit format. Calls between the US and Canada may or may not be included in your plan — check with your carrier, as international rates can apply.
Area code 343 is located in Ontario, Canada — specifically the eastern Ontario region and operates on Eastern Time . The largest city served is Ottawa . View all Canadian area codes →
Area Code Details
- Area Code
- 343
- State / Province
- Ontario (ON)
- Country
- Canada
- Geographic Area
- eastern Ontario
- Time Zone
- Eastern Time Eastern Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- May 17, 2010
- Assigned
- September 10, 2008
- Population Served
- ~1,425,397 est.
- Overlay Complex
- 343/613/753
Cities Served
History & Relationships
Split from
613Overlay complex — shares geography with
Rate Centers & Exchanges
25 rate centers identified within area code 343
Other Area Codes in Ontario
View all →Nearby Area Codes
Frequently Asked Questions About Area Code 343
What state is area code 343?
Area code 343 is located in Ontario, specifically covering the eastern Ontario region.
Where is area code 343 from?
Area code 343 originates from Ontario — eastern Ontario. It operates in the Eastern Time zone.
What time zone is area code 343?
Area code 343 falls within the Eastern Time zone (Eastern Time).
What cities are in area code 343?
Area code 343 serves cities including Ottawa, Kingston, Orleans, Belleville, Brockville, Petawawa, Pembroke, Hawkesbury, and more.
Is a call from area code 343 a scam?
Area code 343 is a legitimate Canadian area code serving Ontario. Like any area code, individual numbers using 343 can be used for scam calls. Note that calls from 343 are international calls from Canada — unexpected calls may incur charges. Always verify the specific number if you receive an unexpected or suspicious call.