Canada

343 area code

Q: Is 343 a US or Canadian area code?

343 belongs to Canada, in Ontario. Both countries use +1, so the three-digit area code helps identify the destination.

Q: Can I call numbers with area code 343 from my browser?

Yes. Enter the full number in Talkala, check the rate, then sign in to call. The person answering uses their usual phone and does not need Talkala. Even if the format is correct, the number may no longer be in use or reachable.

The 343 area code is used in Ontario, Canada. Dial +1 343, then the seven-digit local number.

The +1 country code is shared by the United States, Canada and other destinations.

Dial +1 343, then the seven-digit local number.

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Canada starting rates

Landline: From $0.02/min
Mobile: From $0.02/min

These are starting rates for Canada. Your full number and selected caller ID determine the final rate, which you see before calling.

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Where is the 343 area code?

The 343 area code is used in Ontario.

343 coverage area

Approximate coverage

CanadaExplore map

Map details and sources

Orange shows the approximate area served by 343. Boundaries are simplified for this map, using a historical telephone-area dataset with reviewed updates for shared and combined areas. It is a coverage guide, not an exact exchange-boundary survey. An area code does not show a caller’s current location.

Telephone boundaries: HSIP / UCLA dataset (public domain). Map geography: Natural Earth (public domain). Nearby city coordinates: Wikidata (CC0).

Coverage references: Numbering authority.

Got a call from 343?

343 is a geographic area code, but it does not identify who is calling or prove where they are. People can keep numbers after moving or use internet calling.

Caller ID can be faked. If a caller claims to be a company you know, check independently using a number from its official website.

How to dial 343 from abroad

From abroad

+1 343 XXX XXXX

Within Canada

(343) XXX-XXXX

Replace each X with a digit from the number you want to call.

Dial +1, then 343, then the seven-digit local number. Within the US or Canada, keep the area code; your phone service may also require the leading 1.

In Talkala, enter the full number starting with +. If your phone service does not accept +, use its international access prefix instead. This varies by country and carrier.

Common questions

Questions about 343

Is 343 a US or Canadian area code?

343 belongs to Canada, in Ontario. Both countries use +1, so the three-digit area code helps identify the destination.

Is 343 a country code?

343 is an area code used in Canada. The country calling code is +1.

The +1 calling code is shared by the United States, Canada and other countries and territories. Keep the recipient's area code when dialing.

Can I call numbers with area code 343 from my browser?

Yes. Enter the full number in Talkala, check the rate, then sign in to call.

The person answering uses their usual phone and does not need Talkala. Even if the format is correct, the number may no longer be in use or reachable.

Sources and limits

Numbering details checked Oct 16, 2026. Coverage is a general guide and may not list every place served.

Prices come from Talkala's published rates, updated May 12, 2026, using the default United States caller ID. The exact rate depends on your selected caller ID and full number.