🇨🇦 343 area code
Area code 343 covers Ottawa, Kingston, Kanata and Orléans and the surrounding area in Ontario, Canada. It shares that territory with 613 and 753, so the same neighbourhood can have numbers in any of them. Enter a 343 number below for a free check before you call back.
- Location: Ottawa, Ontario
- Time zone: Eastern (UTC−5)
- In service since May 17, 2010
查询号码
首次查询即可得到有效性、运营商、线路类型和地区。
Area code 343 at a glance
- Area code
- 343
- Location
- Ontario, Canada
- Main cities
- Ottawa, Kingston, Kanata, Orléans, Brockville, Trenton
- Area served
- eastern Ontario
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- May 17, 2010
- Created from
- 613
- Overlay codes
- 613, 753
- Local calls
- Dial 10 digits
- Number format
- (343) 555-0123
- From abroad
- +1 343 555 0123
Cities in the 343 overlay area
- Ottawa
- Kingston
- Kanata
- Orléans
- Brockville
- Trenton
- Arnprior
- Belleville
- Carleton Place
- Pembroke
Is a 343 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 343 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 343 number to people in Ontario because a local-looking call is more likely to be answered. If a 343 call claims to be your bank, the IRS or the CRA or a delivery company, hang up and call the official number yourself.
About area code 343
343 entered service on May 17, 2010, as an overlay on 613, which had run short of numbers.
It is part of the 343/613/753 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 343 overlays the same ground, the cities listed are those of the codes it shares with.
常见问题
Area code 343 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 343?
Area code 343 is in Ontario, Canada. It covers Ottawa, Kingston, Kanata, Orléans, Brockville and Trenton.
What time zone is area code 343?
343 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 343?
613 and 753 serve the same area as 343. Numbers in all of them are local to one another.
When did area code 343 start?
343 entered service on May 17, 2010, created from 613.
How do I find out who called me from 343?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 343?
If you live in or near Ontario, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 343 callers who will not leave a message are best looked up before you call back.