Area Code 343 Location
The 343 area code covers Ottawa and the surrounding Eastern Ontario region.
Area code 343 is a General Purpose Code which was placed in service on May 17, 2010.
Area Code 343 Location Map
Source: Canadian Numbering Administrator (cnac.ca)
Overlay System
The 343 area code is an overlay to the original 613 area code, meaning they serve the same geographic region. To further increase capacity, area code 753 was added as another overlay. Area code 613 was one of the original area codes from 1947. Area code 343 was activated on May 17, 2010, and area code 753 was activated on March 26, 2022. Ten-digit dialing is mandatory in this region.
Area Code 343 NXX Codes Distribution
NXX Code Distribution by Exchange Area
Our reverse phone lookup will analyze the three-digit nxx code of any 343 numbering plan area (NPA) phone number and will show which company and exchange area it was initially assigned to. This nxx code data may help to determine the Canada carrier, and geographic area associated with that phone number.
| Exchange Area | Number of NXX Codes |
|---|---|
| Ottawa-Hull | 99 |
| Cornwall | 22 |
| Kingston | 22 |
| Belleville | 19 |
| Brockville | 17 |
| Bancroft | 13 |
| Kanata-Stittsville | 12 |
| Jockvale | 10 |
| Merrickville | 10 |
| Carleton Place | 9 |
| Smiths Falls | 9 |
| Orleans | 8 |
| Vankleek Hill | 8 |
| Alfred | 7 |
| Hawkesbury | 7 |
| Rockland | 7 |
| Tweed | 7 |
| Arnprior | 6 |
| Bloomfield | 6 |
| Brighton | 6 |
| Casselman | 6 |
| Frankford | 6 |
| Northbrook | 6 |
| Pakenham | 6 |
| Pembroke | 6 |
| Picton | 6 |
| Richmond | 6 |
| Wellington | 6 |
| Almonte | 5 |
| Arden | 5 |
| Carp | 5 |
| Chesterville | 5 |
| Clarence Creek | 5 |
| Cumberland | 5 |
| Deseronto | 5 |
| Embrun | 5 |
| Gloucester | 5 |
| Kemptville | 5 |
| Madoc | 5 |
| Marmora | 5 |
| Maynooth | 5 |
| Morrisburg | 5 |
| Napanee | 5 |
| Perth | 5 |
| Plevna | 5 |
| Russell | 5 |
| Stirling | 5 |
| Trenton | 5 |
| Winchester | 5 |
| Alexandria | 4 |
| Bath | 4 |
| Bourget | 4 |
| Cardiff | 4 |
| Coe Hill | 4 |
| Constance Bay | 4 |
| Crysler | 4 |
| Denbigh | 4 |
| Iroquois | 4 |
| Manotick | 4 |
| Metcalfe | 4 |
| Navan | 4 |
| Plantagenet | 4 |
| Seeleys Bay | 4 |
| South Mountain | 4 |
| Adolphustown | 3 |
| Delta | 3 |
| Enterprise | 3 |
| Gananoque | 3 |
| Gilmour | 3 |
| Harrowsmith | 3 |
| Ingleside | 3 |
| Inverary | 3 |
| L'Orignal | 3 |
| Lancaster | 3 |
| Maxville | 3 |
| North Gower | 3 |
| Odessa | 3 |
| Osgoode | 3 |
| Selby | 3 |
| St-Regis | 3 |
| St. Isidore | 3 |
| Sydenham | 3 |
| Tamworth | 3 |
| Thurlow | 3 |
| Williamsburg | 3 |
| Wolfe Island | 3 |
| Wooler | 3 |
| Avonmore | 2 |
| Cardinal | 2 |
| Chalk River | 2 |
| Cobden | 2 |
| Deep River | 2 |
| Eganville | 2 |
| Elgin | 2 |
| Finch | 2 |
| Glen Robertson | 2 |
| Long Sault | 2 |
| Martintown | 2 |
| Newburgh | 2 |
| St. Eugene | 2 |
| Verona | 2 |
| Yarker | 2 |
| Athens | 1 |
| Barry's Bay | 1 |
| Calabogie | 1 |
| Killaloe | 1 |
| Lanark | 1 |
| North Augusta | 1 |
| Petawawa | 1 |
| Portland | 1 |
| Prescott | 1 |
| Renfrew | 1 |
| Rolphton | 1 |
| Sharbot Lake | 1 |
| Westport | 1 |
| Whitney | 1 |
NXX Code Distribution by Company
| Company | NXX Codes Assigned |
|---|---|
| Fibernetics Corporation | 92 |
| TELUS Integrated Communications | 82 |
| Iristel Inc. | 66 |
| Distributel | 65 |
| TekSavvy Solutions Inc | 53 |
| ISP Telecom Inc. | 41 |
| InnSysVoice Corp | 33 |
| Bell Mobility | 28 |
| Bell Canada | 22 |
| Nexicom Telecommunications Inc | 22 |
| Freedom Mobile Inc. | 21 |
| Comwave Networks | 16 |
| TELUS Mobility | 15 |
| Rogers Communications Canada Inc. (Wireless) | 13 |
| IXICA Communications Inc. | 12 |
| Cogeco Connexion Inc. | 10 |
| Zayo Canada Inc. | 8 |
| Videotron Ltd. | 7 |
| Fido Solutions Inc. | 6 |
| Rogers Communications Canada Inc. (Cable) | 6 |
| ExaTEL Inc. | 3 |
| Westport Telephone Company Limited | 3 |
| Primus Telecommunications Canada Inc. | 2 |
| Bragg Communications Inc. | 1 |
| NRTC Communications | 1 |
| Rogers Communications Canada Inc. | 1 |
| Roxborough Telephone Company Ltd. | 1 |
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