Area Code 343
Area code 343 is in Ontario, Canada , serving 260 cities, including Ottawa, Cornwall or Quinte West; it currently uses 625 prefixes, assigned from 343-200-XXXX through 343-999-XXXX.
In service since May 17, 2010, area code 343 is an overlay Numbering Plan Area, part of overlay complex 613/343/753.
The current local time is .
For exact NPA boundaries see official 343 area code map
More Ontario area codes:
Locate any 343-NXX prefix:
| NPANXX | Area Served1 |
|---|---|
| 343-200 | Rockland |
| 343-201 | Alfred |
| 343-202 | Ottawa-Hull |
| 343-203 | Ottawa-Hull |
| 343-204 | Ottawa-Hull |
| 343-205 | Adolphustown |
| 343-206 | Bath |
| 343-207 | Enterprise |
| 343-208 | Gananoque |
| 343-209 | Ottawa-Hull |
| 343-210 | Clarence Creek |
| 343-212 | Jockvale |
| 343-213 | Carleton Place |
| 343-214 | Manotick |
| 343-215 | Hawkesbury |
| 343-216 | Sydenham |
| 343-217 | Tamworth |
| 343-218 | Elgin |
| 343-219 | Lanark |
| 343-220 | Portland |
| 343-221 | Orleans |
| 343-222 | Picton |
| 343-223 | Chalk River |
| 343-224 | Ottawa-Hull |
| 343-225 | Brockville |
| 343-226 | Russell |
| 343-227 | Ottawa-Hull |
| 343-228 | Denbigh |
| 343-229 | Madoc |
| 343-230 | Marmora |
| 343-231 | Maynooth |
| 343-232 | Northbrook |
| 343-233 | Plevna |
| 343-234 | Tweed |
| 343-235 | Alexandria |
| 343-236 | Iroquois |
| 343-237 | Maxville |
| 343-238 | Morrisburg |
| 343-239 | St. Isidore |
| 343-240 | Carp |
| 343-241 | Barry'S Bay |
| 343-242 | Calabogie |
| 343-243 | Cobden |
| 343-244 | Ottawa-Hull |
| 343-245 | Deep River |
| 343-246 | Eganville |
| 343-247 | Killaloe |
| 343-248 | Whitney |
| 343-249 | Athens |
| 343-250 | Cardinal |
| 343-251 | Delta |
| 343-252 | Seeleys Bay |
| 343-253 | Coe Hill |
| 343-254 | Ottawa-Hull |
| 343-255 | Frankford |
| 343-256 | Crysler |
| 343-257 | Merrickville |
| 343-258 | Pakenham |
| 343-259 | South Mountain |
| 343-260 | Brockville |
| 343-261 | Belleville |
| 343-262 | Ottawa-Hull |
| 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 |
| 343-274 | Harrowsmith |
| 343-275 | Inverary |
| 343-276 | Napanee |
| 343-277 | Newburgh |
| 343-278 | Odessa |
| 343-279 | Seeleys Bay |
| 343-280 | Selby |
| 343-281 | Sydenham |
| 343-282 | Tamworth |
| 343-283 | Verona |
| 343-284 | Wolfe Island |
| 343-285 | Carleton Place |
| 343-286 | Yarker |
| 343-287 | Deseronto |
| 343-288 | Cornwall |
| 343-290 | Kingston |
| 343-291 | Ottawa-Hull |
| 343-292 | Ottawa-Hull |
| 343-293 | Kingston |
| 343-294 | Ottawa-Hull |
| 343-295 | Napanee |
| 343-296 | Carleton Place |
| 343-297 | Ottawa-Hull |
| 343-298 | Alfred |
| 343-299 | Cumberland |
| NPANXX | Area Served1 |
|---|---|
| 343-300 | Brockville |
| 343-301 | Cornwall |
| 343-302 | Kingston |
| 343-303 | Jockvale |
| 343-304 | Vankleek Hill |
| 343-305 | Kingston |
| 343-306 | Kingston |
| 343-307 | Brockville |
| 343-308 | Kanata-Stittsville |
| 343-309 | Cornwall |
| 343-312 | Jockvale |
| 343-313 | Jockvale |
| 343-314 | Cornwall |
| 343-315 | Brighton |
| 343-316 | Cornwall |
| 343-317 | Ottawa-Hull |
| 343-318 | Pakenham |
| 343-319 | Cornwall |
| 343-320 | Brockville |
| 343-321 | Perth |
| 343-322 | Ottawa-Hull |
| 343-323 | Kingston |
| 343-324 | Ottawa-Hull |
| 343-325 | Trenton |
| 343-326 | Kanata-Stittsville |
| 343-327 | Brockville |
| 343-328 | Perth |
| 343-329 | Sharbot Lake |
| 343-330 | Cornwall |
| 343-331 | Vankleek Hill |
| 343-332 | Ottawa-Hull |
| 343-333 | Kingston |
| 343-334 | Kemptville |
| 343-335 | Prescott |
| 343-336 | Ottawa-Hull |
| 343-337 | Merrickville |
| 343-338 | Merrickville |
| 343-339 | Merrickville |
| 343-340 | Merrickville |
| 343-341 | Perth |
| 343-342 | Vankleek Hill |
| 343-344 | Kingston |
| 343-345 | South Mountain |
| 343-346 | Winchester |
| 343-347 | Arnprior |
| 343-348 | Cumberland |
| 343-349 | Gloucester |
| 343-350 | Orleans |
| 343-351 | Richmond |
| 343-352 | Cardinal |
| 343-353 | Kanata-Stittsville |
| 343-354 | Denbigh |
| 343-355 | Belleville |
| 343-356 | Cornwall |
| 343-357 | Bancroft |
| 343-358 | Kingston |
| 343-359 | Kanata-Stittsville |
| 343-360 | Ottawa-Hull |
| 343-361 | Renfrew |
| 343-362 | Belleville |
| 343-363 | Kingston |
| 343-364 | Kingston |
| 343-366 | Kingston |
| 343-367 | Belleville |
| 343-368 | Ottawa-Hull |
| 343-369 | Pembroke |
| 343-370 | Cornwall |
| 343-371 | Alfred |
| 343-372 | Almonte |
| 343-373 | Arnprior |
| 343-374 | Bourget |
| 343-375 | Carleton Place |
| 343-376 | Carp |
| 343-377 | Casselman |
| 343-378 | Chesterville |
| 343-379 | Clarence Creek |
| 343-380 | Constance Bay |
| 343-381 | Crysler |
| 343-382 | Cumberland |
| 343-383 | Embrun |
| 343-384 | Gloucester |
| 343-385 | Jockvale |
| 343-386 | Kanata-Stittsville |
| 343-387 | Kemptville |
| 343-388 | Manotick |
| 343-389 | Merrickville |
| 343-390 | Metcalfe |
| 343-391 | Navan |
| 343-392 | North Gower |
| 343-393 | Orleans |
| 343-394 | Osgoode |
| 343-395 | Pakenham |
| 343-396 | Plantagenet |
| 343-397 | Richmond |
| 343-398 | Rockland |
| 343-399 | Russell |
| NPANXX | Area Served1 |
|---|---|
| 343-400 | Perth |
| 343-401 | Bancroft |
| 343-402 | Perth |
| 343-403 | Belleville |
| 343-404 | Bancroft |
| 343-405 | Morrisburg |
| 343-406 | Arden |
| 343-407 | Bloomfield |
| 343-408 | Brighton |
| 343-409 | Cardiff |
| 343-410 | Coe Hill |
| 343-412 | Rockland |
| 343-413 | Frankford |
| 343-414 | Madoc |
| 343-415 | Gilmour |
| 343-416 | Marmora |
| 343-417 | Ottawa-Hull |
| 343-418 | Maynooth |
| 343-419 | Northbrook |
| 343-420 | Picton |
| 343-421 | Plevna |
| 343-422 | Kingston |
| 343-423 | Stirling |
| 343-424 | Trenton |
| 343-425 | Thurlow |
| 343-426 | Tweed |
| 343-427 | Wellington |
| 343-428 | Wooler |
| 343-429 | Carleton Place |
| 343-430 | Carleton Place |
| 343-431 | Cornwall |
| 343-432 | Alexandria |
| 343-433 | Avonmore |
| 343-434 | Finch |
| 343-435 | Glen Robertson |
| 343-436 | Ingleside |
| 343-437 | Iroquois |
| 343-438 | L'Orignal |
| 343-439 | Lancaster |
| 343-440 | Long Sault |
| 343-441 | Martintown |
| 343-442 | Maxville |
| 343-443 | Morrisburg |
| 343-444 | Cornwall |
| 343-445 | St. Eugene |
| 343-446 | St. Isidore |
| 343-447 | St-Regis |
| 343-448 | Vankleek Hill |
| 343-449 | Williamsburg |
| 343-451 | Ottawa-Hull |
| 343-452 | Ottawa-Hull |
| 343-453 | Belleville |
| 343-454 | Alfred |
| 343-455 | Clarence Creek |
| 343-456 | Embrun |
| 343-457 | Plantagenet |
| 343-458 | Rockland |
| 343-459 | Belleville |
| 343-461 | Belleville |
| 343-462 | Ottawa-Hull |
| 343-463 | Ottawa-Hull |
| 343-464 | Almonte |
| 343-465 | Jockvale |
| 343-466 | North Gower |
| 343-467 | Osgoode |
| 343-468 | Westport |
| 343-470 | Hawkesbury |
| 343-471 | Tweed |
| 343-472 | Madoc |
| 343-473 | Vankleek Hill |
| 343-474 | Alexandria |
| 343-475 | Cornwall |
| 343-476 | Bancroft |
| 343-477 | Kingston |
| 343-478 | Napanee |
| 343-479 | Gananoque |
| 343-480 | Brockville |
| 343-481 | Iroquois |
| 343-482 | Williamsburg |
| 343-483 | Morrisburg |
| 343-485 | Merrickville |
| 343-488 | Ottawa-Hull |
| 343-489 | Orleans |
| 343-490 | Kanata-Stittsville |
| 343-491 | Carp |
| 343-492 | Constance Bay |
| 343-493 | Pakenham |
| 343-494 | Richmond |
| 343-495 | Rockland |
| 343-498 | Winchester |
| 343-499 | Kanata-Stittsville |
| NPANXX | Area Served1 |
|---|---|
| 343-500 | Hawkesbury |
| 343-501 | Brockville |
| 343-502 | Ottawa-Hull |
| 343-503 | Carleton Place |
| 343-504 | Brockville |
| 343-505 | Kingston |
| 343-506 | Lancaster |
| 343-507 | Brockville |
| 343-508 | Rolphton |
| 343-509 | Smiths Falls |
| 343-510 | Deseronto |
| 343-512 | Hawkesbury |
| 343-513 | Jockvale |
| 343-514 | Hawkesbury |
| 343-515 | Arnprior |
| 343-516 | Carp |
| 343-517 | Constance Bay |
| 343-519 | Kemptville |
| 343-520 | Alfred |
| 343-521 | Almonte |
| 343-522 | Bourget |
| 343-523 | Casselman |
| 343-524 | Chesterville |
| 343-525 | Embrun |
| 343-526 | Gloucester |
| 343-527 | Merrickville |
| 343-528 | Orleans |
| 343-529 | Plantagenet |
| 343-530 | Richmond |
| 343-531 | Rockland |
| 343-532 | Winchester |
| 343-533 | Clarence Creek |
| 343-534 | Crysler |
| 343-535 | Cumberland |
| 343-536 | Navan |
| 343-537 | Pakenham |
| 343-538 | Russell |
| 343-539 | South Mountain |
| 343-540 | Ottawa-Hull |
| 343-541 | Ottawa-Hull |
| 343-542 | Ottawa-Hull |
| 343-543 | Ottawa-Hull |
| 343-544 | Pembroke |
| 343-545 | Kanata-Stittsville |
| 343-546 | Gloucester |
| 343-547 | Jockvale |
| 343-548 | Ottawa-Hull |
| 343-549 | Ottawa-Hull |
| 343-550 | Ottawa-Hull |
| 343-551 | Ottawa-Hull |
| 343-552 | Ottawa-Hull |
| 343-553 | Ottawa-Hull |
| 343-554 | Ottawa-Hull |
| 343-556 | Ottawa-Hull |
| 343-557 | Maynooth |
| 343-558 | Ottawa-Hull |
| 343-559 | Arden |
| 343-560 | Bloomfield |
| 343-561 | Cardiff |
| 343-562 | Picton |
| 343-563 | Casselman |
| 343-564 | Smiths Falls |
| 343-565 | Kingston |
| 343-566 | Arnprior |
| 343-567 | Pembroke |
| 343-569 | Enterprise |
| 343-570 | Odessa |
| 343-571 | Ottawa-Hull |
| 343-572 | Ottawa-Hull |
| 343-573 | Ottawa-Hull |
| 343-574 | Ottawa-Hull |
| 343-575 | Ottawa-Hull |
| 343-576 | Ottawa-Hull |
| 343-577 | Bath |
| 343-578 | Harrowsmith |
| 343-580 | Kingston |
| 343-581 | Adolphustown |
| 343-582 | Deseronto |
| 343-583 | Enterprise |
| 343-584 | Harrowsmith |
| 343-585 | Cornwall |
| 343-586 | Inverary |
| 343-587 | Newburgh |
| 343-588 | Ottawa-Hull |
| 343-589 | Odessa |
| 343-590 | Seeleys Bay |
| 343-591 | Selby |
| 343-592 | Tamworth |
| 343-593 | Verona |
| 343-594 | Wolfe Island |
| 343-595 | Yarker |
| 343-596 | Ottawa-Hull |
| 343-597 | Ottawa-Hull |
| 343-598 | Ottawa-Hull |
| 343-599 | Ottawa-Hull |
| NPANXX | Area Served1 |
|---|---|
| 343-600 | Belleville |
| 343-601 | Belleville |
| 343-602 | Ottawa-Hull |
| 343-603 | Belleville |
| 343-604 | Brockville |
| 343-605 | Cornwall |
| 343-606 | Hawkesbury |
| 343-607 | Kingston |
| 343-608 | Smiths Falls |
| 343-609 | Pembroke |
| 343-614 | Pembroke |
| 343-618 | Jockvale |
| 343-619 | Ottawa-Hull |
| 343-620 | Pembroke |
| 343-622 | Deep River |
| 343-623 | Chalk River |
| 343-626 | Brockville |
| 343-628 | Eganville |
| 343-630 | Ottawa-Hull |
| 343-631 | Ottawa-Hull |
| 343-632 | Cornwall |
| 343-633 | Ottawa-Hull |
| 343-634 | Cornwall |
| 343-635 | Cornwall |
| 343-636 | Ingleside |
| 343-637 | Cornwall |
| 343-638 | Frankford |
| 343-639 | Marmora |
| 343-640 | Plevna |
| 343-641 | Stirling |
| 343-642 | Tweed |
| 343-643 | Brockville |
| 343-644 | Ottawa-Hull |
| 343-645 | Belleville |
| 343-646 | Bourget |
| 343-647 | Chesterville |
| 343-648 | Crysler |
| 343-649 | Metcalfe |
| 343-650 | Navan |
| 343-651 | South Mountain |
| 343-653 | Elgin |
| 343-654 | Smiths Falls |
| 343-655 | Ottawa-Hull |
| 343-660 | Ottawa-Hull |
| 343-665 | Ottawa-Hull |
| 343-666 | Ottawa-Hull |
| 343-667 | Kanata-Stittsville |
| 343-668 | Alexandria |
| 343-669 | Avonmore |
| 343-670 | Finch |
| 343-671 | Glen Robertson |
| 343-672 | Ingleside |
| 343-673 | Iroquois |
| 343-674 | L'Orignal |
| 343-675 | Lancaster |
| 343-676 | Long Sault |
| 343-677 | Wellington |
| 343-678 | Martintown |
| 343-679 | Maxville |
| 343-680 | Morrisburg |
| 343-681 | St. Eugene |
| 343-682 | St. Isidore |
| 343-683 | St-Regis |
| 343-684 | Williamsburg |
| 343-685 | Belleville |
| 343-686 | Ottawa-Hull |
| 343-687 | Picton |
| 343-688 | Ottawa-Hull |
| 343-689 | Orleans |
| 343-690 | Kanata-Stittsville |
| 343-691 | Alfred |
| 343-695 | Hawkesbury |
| 343-698 | Manotick |
| 343-699 | Trenton |
| NPANXX | Area Served1 |
|---|---|
| 343-700 | Ottawa-Hull |
| 343-701 | Seeleys Bay |
| 343-702 | Selby |
| 343-703 | Brockville |
| 343-709 | Bancroft |
| 343-710 | Belleville |
| 343-712 | Arden |
| 343-713 | Bloomfield |
| 343-714 | Brighton |
| 343-715 | Cardiff |
| 343-716 | Coe Hill |
| 343-717 | Denbigh |
| 343-718 | Frankford |
| 343-719 | Gilmour |
| 343-720 | Bancroft |
| 343-721 | Madoc |
| 343-722 | Marmora |
| 343-723 | Maynooth |
| 343-724 | Northbrook |
| 343-725 | Picton |
| 343-726 | Plevna |
| 343-727 | Stirling |
| 343-728 | Thurlow |
| 343-729 | Trenton |
| 343-730 | Belleville |
| 343-731 | Tweed |
| 343-732 | Wellington |
| 343-733 | Wooler |
| 343-734 | Brighton |
| 343-735 | Frankford |
| 343-736 | Madoc |
| 343-737 | St-Regis |
| 343-738 | Marmora |
| 343-739 | Northbrook |
| 343-740 | Picton |
| 343-741 | Stirling |
| 343-742 | Trenton |
| 343-743 | Tweed |
| 343-744 | Bloomfield |
| 343-745 | Wellington |
| 343-746 | North Augusta |
| 343-747 | L'Orignal |
| 343-748 | Vankleek Hill |
| 343-749 | Wellington |
| 343-750 | Stirling |
| 343-751 | Frankford |
| 343-752 | Bloomfield |
| 343-755 | Bancroft |
| 343-759 | Embrun |
| 343-760 | Almonte |
| 343-761 | Arnprior |
| 343-762 | Bourget |
| 343-763 | Carleton Place |
| 343-764 | Carp |
| 343-765 | Casselman |
| 343-766 | Chesterville |
| 343-767 | Clarence Creek |
| 343-768 | Constance Bay |
| 343-769 | Cumberland |
| 343-770 | Embrun |
| 343-771 | Gloucester |
| 343-772 | Jockvale |
| 343-773 | Kanata-Stittsville |
| 343-774 | Kemptville |
| 343-775 | Manotick |
| 343-776 | Metcalfe |
| 343-777 | Ottawa-Hull |
| 343-778 | Navan |
| 343-779 | North Gower |
| 343-780 | Orleans |
| 343-781 | Osgoode |
| 343-783 | Plantagenet |
| 343-784 | Richmond |
| 343-785 | Rockland |
| 343-786 | Russell |
| 343-787 | Winchester |
| 343-788 | Belleville |
| 343-789 | Alfred |
| 343-796 | Inverary |
| 343-797 | Tweed |
| 343-798 | Pakenham |
| 343-799 | Metcalfe |
| NPANXX | Area Served1 |
|---|---|
| 343-800 | Smiths Falls |
| 343-801 | Smiths Falls |
| 343-802 | Smiths Falls |
| 343-803 | Ottawa-Hull |
| 343-804 | Ottawa-Hull |
| 343-805 | Ottawa-Hull |
| 343-806 | Ottawa-Hull |
| 343-807 | Ottawa-Hull |
| 343-808 | Ottawa-Hull |
| 343-809 | Ottawa-Hull |
| 343-822 | Deseronto |
| 343-833 | Gananoque |
| 343-842 | Vankleek Hill |
| 343-843 | Ottawa-Hull |
| 343-844 | Adolphustown |
| 343-855 | Bath |
| 343-856 | Arden |
| 343-857 | Bloomfield |
| 343-858 | Cardiff |
| 343-859 | Coe Hill |
| 343-860 | Denbigh |
| 343-861 | Gilmour |
| 343-862 | Maynooth |
| 343-863 | Northbrook |
| 343-864 | Thurlow |
| 343-865 | Wellington |
| 343-866 | Wooler |
| 343-867 | Cornwall |
| 343-877 | Kemptville |
| 343-880 | Orleans |
| 343-881 | Smiths Falls |
| 343-882 | Ottawa-Hull |
| 343-883 | Ottawa-Hull |
| 343-884 | Kingston |
| 343-885 | Cornwall |
| 343-886 | Vankleek Hill |
| 343-887 | Ottawa-Hull |
| 343-888 | Ottawa-Hull |
| 343-889 | Belleville |
| 343-890 | Almonte |
| 343-891 | Casselman |
| 343-892 | Bath |
| 343-893 | Napanee |
| 343-894 | Sydenham |
| 343-895 | Casselman |
| 343-896 | Merrickville |
| 343-897 | Russell |
| 343-898 | Winchester |
| 343-899 | Carleton Place |
| NPANXX | Area Served1 |
|---|---|
| 343-900 | Kingston |
| 343-901 | Merrickville |
| 343-902 | Richmond |
| 343-903 | Smiths Falls |
| 343-922 | Wolfe Island |
| 343-925 | Ottawa-Hull |
| 343-928 | Delta |
| 343-933 | Brighton |
| 343-937 | Cornwall |
| 343-943 | Bancroft |
| 343-944 | Bancroft |
| 343-945 | Bancroft |
| 343-946 | Bancroft |
| 343-947 | Bancroft |
| 343-951 | Brockville |
| 343-952 | Delta |
| 343-960 | Ottawa-Hull |
| 343-961 | Ottawa-Hull |
| 343-962 | Ottawa-Hull |
| 343-963 | Ottawa-Hull |
| 343-970 | Cobden |
| 343-973 | Arnprior |
| 343-974 | Kanata-Stittsville |
| 343-975 | Ottawa-Hull |
| 343-979 | Ottawa-Hull |
| 343-980 | Petawawa |
| 343-982 | Brockville |
| 343-983 | Cornwall |
| 343-984 | Ottawa-Hull |
| 343-987 | Ottawa-Hull |
| 343-988 | Ottawa-Hull |
| 343-989 | Kingston |
| 343-990 | Ottawa-Hull |
| 343-991 | Ottawa-Hull |
| 343-992 | Ottawa-Hull |
| 343-993 | Ottawa-Hull |
| 343-996 | Ottawa-Hull |
| 343-997 | Ottawa-Hull |
| 343-998 | Ottawa-Hull |
| 343-999 | Ottawa-Hull |
- For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
- NXX prefixes last updated: June 3, 2025
Cities in area code 343
| City1 | Time Zone1 |
|---|---|
| Addison | E |
| Akwesasne | E |
| Alexandria | E |
| Alfred | E |
| Almonte | E |
| Ameliasburg | E |
| Amherstview | E |
| Apple Hill | E |
| Arden | E |
| Ardoch | E |
| Arnprior | E |
| Ashton | E |
| Astra | E |
| Athens | E |
| Avonmore | E |
| Bainsville | E |
| Balderson | E |
| Bancroft | E |
| Barrys Bay | E |
| Batawa | E |
| Bath | E |
| Battersea | E |
| Beachburg | E |
| Belleville | E |
| Berwick | E |
| Bissett Creek | E |
| Bloomfield | E |
| Boulter | E |
| Bourget | E |
| Braeside | E |
| Brighton | E |
| Brinston | E |
| Brockville | E |
| Burnstown | E |
| Burritts Rapids | E |
| Calabogie | E |
| Camden East | E |
| Cannifton | E |
| Cardiff | E |
| Cardinal | E |
| Carleton Place | E |
| Carlsbad Springs | E |
| Carp | E |
| Carrying Place | E |
| Casselman | E |
| Centreville | E |
| Chalk River | E |
| Cherry Valley | E |
| Chesterville | E |
| Chute A Blondeau | E |
| Clarence Creek | E |
| Clarendon Station | E |
| Clayton | E |
| Cloyne | E |
| Cobden | E |
| Codrington | E |
| Coe Hill | E |
| Combermere | E |
| Consecon | E |
| Corbyville | E |
| Cormac | E |
| Cornwall | E |
| Crysler | E |
| Cumberland | E |
| Curran | E |
| Dacre | E |
| Dalkeith | E |
| Deep River | E |
| Delta | E |
| Demorestville | E |
| Denbigh | E |
| Deseronto | E |
| Douglas | E |
| Dunrobin | E |
| Dunvegan | E |
| Edwards | E |
| Eganville | E |
| Eldorado | E |
| Elgin | E |
| Elginburg | E |
| Elizabethtown | E |
| Embrun | E |
| Enterprise | E |
| Erinsville | E |
| Finch | E |
| Fitzroy Harbour | E |
| Flinton | E |
| Foresters Falls | E |
| Fournier | E |
| Foxboro | E |
| Foymount | E |
| Frankford | E |
| Frankville | E |
| Gananoque | E |
| Gilmour | E |
| Glen Robertson | E |
| Glenburnie | E |
| Gloucester | E |
| Godfrey | E |
| Golden Lake | E |
| Graham | E |
| Greely | E |
| Green Valley | E |
| Griffith | E |
| Haley Station | E |
| Hammond | E |
| Harrowsmith | E |
| Hartington | E |
| Hawkesbury | E |
| Hillier | E |
| Ingleside | E |
| Inkerman | E |
| Inverary | E |
| Iroquois | E |
| Jasper | E |
| Joyceville | E |
| Kaladar | E |
| Kanata | E |
| Kars | E |
| Kemptville | E |
| Kenmore | E |
| Killaloe | E |
| Kinburn | E |
| Kingston | E |
| L'Amable | E |
| L'Orignal | E |
| Lake St Peter | E |
| Lanark | E |
| Lancaster | E |
| Lansdowne | E |
| Lefaivre | E |
| Limoges | E |
| Lombardy | E |
| Long Sault | E |
| Lunenburg | E |
| Lyn | E |
| Lyndhurst | E |
| Maberly | E |
| Mackey | E |
| Madawaska | E |
| Madoc | E |
| Maitland | E |
| Mallorytown | E |
| Manotick | E |
| Maple Leaf | E |
| Marlbank | E |
| Marmora | E |
| Martintown | E |
| Marysville | E |
| Maxville | E |
| Maynooth | E |
| McArthurs Mills | E |
| McDonalds Corners | E |
| Merrickville | E |
| Metcalfe | E |
| Milford | E |
| Mississippi Station | E |
| Monkland | E |
| Moose Creek | E |
| Morewood | E |
| Morrisburg | E |
| Mountain | E |
| Mountain Grove | E |
| Munster | E |
| Napanee | E |
| Navan | E |
| Nepean | E |
| Newboro | E |
| Newburgh | E |
| Newington | E |
| North Augusta | E |
| North Gower | E |
| North Lancaster | E |
| Northbrook | E |
| Odessa | E |
| Ompah | E |
| Orleans | E |
| Osgoode | E |
| Ottawa | E |
| Oxford Mills | E |
| Oxford Station | E |
| Pakenham | E |
| Palmer Rapids | E |
| Parham | E |
| Pembroke | E |
| Perth | E |
| Perth Road | E |
| Petawawa | E |
| Picton | E |
| Plainfield | E |
| Plantagenet | E |
| Plevna | E |
| Portland | E |
| Prescott | E |
| Quadeville | E |
| Quinte West | E |
| Ramsayville | E |
| Renfrew | E |
| Richmond | E |
| Rideau Ferry | E |
| Roblin | E |
| Rockcliffe | E |
| Rockland | E |
| Rockport | E |
| Rolphton | E |
| Roslin | E |
| Round Lake Centre | E |
| Russell | E |
| Saint-Pascal-Baylon | E |
| Sarsfield | E |
| Seeleys Bay | E |
| Selby | E |
| Shannonville | E |
| Sharbot Lake | E |
| Smiths Falls | E |
| Snow Road Station | E |
| South Lancaster | E |
| South Mountain | E |
| Spencerville | E |
| Springbrook | E |
| St Albert | E |
| St Andrews West | E |
| St Bernardin | E |
| St Eugene | E |
| St Isidore | E |
| Ste Anne De Prescott | E |
| Stella | E |
| Stirling | E |
| Stittsville | E |
| Stonecliffe | E |
| Summerstown | E |
| Sydenham | E |
| Tamworth | E |
| Thomasburg | E |
| Tichborne | E |
| Toledo | E |
| Trenton | E |
| Tweed | E |
| Upper Canada Village | E |
| Vanier | E |
| Vankleek Hill | E |
| Vars | E |
| Vernon | E |
| Verona | E |
| Wellington | E |
| Wendover | E |
| Westbrook | E |
| Westmeath | E |
| Westport | E |
| White Lake | E |
| Whitney | E |
| Williamsburg | E |
| Williamstown | E |
| Wilno | E |
| Winchester | E |
| Winchester Springs | E |
| Wolfe Island | E |
| Woodlawn | E |
| Wooler | E |
| Yarker | E |
- Listed above are most places served by Canadian area code 343. When multiple places in a CA province share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
- E stands for Eastern Time (currently ).