343 area code: Ottawa
A local Ottawa line, active as soon as you finish signing up. Calls, texts and an AI agent included.
Available 343 numbers
Checked on October 31, 2026. A number may have been taken since.
Where is area code 343?
- Region
- Ontario, Canada
- Main cities
- Ottawa, Kingston and Cornwall
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- In service since
- 2010
- Overlay codes
- 613
- Dialling
- ten digits, even for a local call
- Format
- +1 343 XXX-XXXX
343 is a Canadian area code in service since 2010. It covers eastern Ontario and runs on Eastern Time (UTC-5, UTC-4 in summer).
A call from a 343 number you do not know usually comes from Ottawa or nearby: a shop, a clinic, a courier, a customer. The area code says nothing about the caller's intent. If a call looks suspicious, let it go to voicemail and check the number before calling back. Businesses that show their name on the call (caller ID) get called back more often.
To reach a 343 number from Canada or the United States, dial all ten digits: 343 then the seven digits of the number. From abroad, add the country code: +1 343.
Area code 343 covers eastern Ontario, including Ottawa, Kingston and Cornwall. It overlays 613: the same area can have any of them, and ten-digit dialling is required. Same territory as 613, same bilingualism, and the same expectation of being served in your own language from the first sentence.
A 343 number tells your customer you are local. That is what gets you answered: a call from an unfamiliar area code often goes to voicemail unheard.
Frequently asked questions
Where is area code 343?
343 serves eastern Ontario, mainly Ottawa, Kingston and Cornwall.
Can I get a 343 number without living there?
Yes. A 343 number can be set up from anywhere in Canada and works on your current phone, with no new device or SIM.
How long before it works?
The number is live as soon as the account is created. Your first call can come in within the minute.
Can I move my existing 343 number?
Yes, porting is included in all plans. It takes 5 to 10 business days, and a temporary number is assigned during the transition.
Can I text from this number?
Yes. The same 343 number sends and receives texts, and an AI agent can answer them.
How is this different from a toll-free number?
A 343 number roots you in a region and reassures a local customer. A toll-free number speaks to the whole country without saying where you are. Many businesses take both.
What time is it in the 343 area code?
Area code 343 runs on Eastern Time (UTC-5, UTC-4 in summer). Ottawa keeps the same time as the rest of the region.
A 343 number called me, who is it?
A 343 number comes from eastern Ontario. It may be a shop, a clinic or a person in Ottawa. The area code alone does not tell you who is calling or whether the call is genuine: when in doubt, let it ring and check the number before calling back.
What is the difference between 343 and 613?
None on the map: 343 and 613 cover the same territory. 343 was added when the other ran out of numbers. Both are dialled with ten digits and cost the same.
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