Area code 343 was first put in service May 17, 2010. Currently, the largest city it serves is Ottawa, ON, and it overlaps coverage areas with area code 613.
Arden, Bancroft, Belleville, Brighton, Brockville, Cornwall, Deseronto, Gananoque, Jockvale, Kanata-Stittsville, Kingston, Napanee, Northbrook, Orleans, Ottawa-Hull, Pembroke, Perth, Plevna, Renfrew, Smiths Falls, Vankleek Hill.
| PREFIX | COUNTY | CITY | CARRIER | TYPE |
|---|---|---|---|---|
| 343-203 | Ottawa | |||
| 343-212 | Jockvale | |||
| 343-213 | Carleton Place | |||
| 343-219 | Ottawa | |||
| 343-221 | Orleans | |||
| 343-222 | Picton | |||
| 343-225 | Brockville | |||
| 343-261 | Belleville | |||
| 343-262 | Ottawa | |||
| 343-263 | Belleville | |||
| 343-264 | Brockville | |||
| 343-265 | Deseronto | |||
| 343-266 | Kingston | |||
| 343-267 | Napanee | |||
| 343-268 | Arden | |||
| 343-269 | Bancroft | |||
| 343-270 | Belleville | |||
| 343-271 | Brighton | |||
| 343-272 | Northbrook | |||
| 343-273 | Plevna | |||
| 343-288 | Cornwall | |||
| 343-290 | Kingston | |||
| 343-291 | Ottawa | |||
| 343-292 | Ottawa | |||
| 343-300 | Brockville | |||
| 343-304 | Vankleek Hill | |||
| 343-320 | Brockville | |||
| 343-330 | Cornwall | |||
| 343-333 | Kingston | |||
| 343-340 | Merrickville | |||
| 343-341 | Perth | |||
| 343-344 | Kingston | |||
| 343-355 | Belleville | |||
| 343-356 | Cornwall | |||
| 343-357 | Bancroft | |||
| 343-358 | Kingston | |||
| 343-359 | Kananaskis | |||
| 343-360 | Ottawa | |||
| 343-361 | Renfrew | |||
| 343-362 | Belleville | |||
| 343-363 | Kingston | |||
| 343-364 | Kingston | |||
| 343-369 | Pembroke | |||
| 343-370 | Cornwall | |||
| 343-400 | Perth | |||
| 343-401 | Bancroft | |||
| 343-402 | Perth | |||
| 343-472 | Madoc | |||
| 343-473 | Vankleek Hill | |||
| 343-474 | Alexandria |
| Phone Number 343-897-1406 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3438971406 |
Update Time Mar-26-2026 |
| Phone Number 343-307-5143 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3433075143 |
Update Time Mar-26-2026 |
| Phone Number 343-501-4861 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3435014861 |
Update Time Mar-26-2026 |
| Phone Number 343-443-3436 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3434433436 |
Update Time Mar-26-2026 |
| Phone Number 343-759-0077 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3437590077 |
Update Time Mar-26-2026 |
| Phone Number 343-635-3087 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3436353087 |
Update Time Mar-26-2026 |
| Phone Number 343-901-7045 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3439017045 |
Update Time Mar-26-2026 |
| Phone Number 343-449-7068 |
USAGE Landline |
City Alexandria |
Operate Read more about who called from 3434497068 |
Update Time Mar-26-2026 |
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