Area code 289
Area code 289 holds 772 in-service central-office prefixes in the CNAC register, covering roughly 7,720,000 telephone numbers. They are split between 20 carriers and 87 rate centres. The largest is Hamilton. Recorded assignments run from January 15, 2001 to May 12, 2022. That ranks it 20 of 55 Canadian area codes by prefix count.
Background reading: Caller ID spoofing, STIR/SHAKEN, and how to actually block calls in Canada · Canadian area codes, overlays, and what a 416 number actually tells you · One-ring scams and the Caribbean area codes that look Canadian
Area code 289 at a glance
- Province or territory
- Ontario
- Main rate centres
- Hamilton, Oakville, Oshawa, St. Catharines-Thorold, Brampton
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- In service since
- June 9, 2001
- Split or overlaid from
- 905
- Number format
- 289-NXX-XXXX · +1 289 NXX XXXX
Sources: CNAC, NANPA (September 25, 2026), Statistics Canada.
In numbers
- In-service prefixes
- 772
- Telephone numbers covered
- 7,720,000
- Carriers
- 20
- Rate centres
- 87
- Provinces and territories
- 1
- First assignment
- January 15, 2001
- Most recent assignment
- May 12, 2022
Who holds these numbers
TELUS Integrated Communications holds the largest share at 91 prefixes, 11.8% of the total, ahead of 19 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| TELUS Integrated Communications | 91 | 11.8 % | 2002 |
| Fibernetics Corporation | 89 | 11.5 % | 2006 |
| Iristel Inc. | 71 | 9.2 % | 2007 |
| Rogers Communications Canada Inc. (Wireless) | 67 | 8.7 % | 2001 |
| InnSysVoice Corp | 64 | 8.3 % | 2014 |
| Distributel | 57 | 7.4 % | 2006 |
| ISP Telecom Inc. | 45 | 5.8 % | 2006 |
| TELUS Mobility | 43 | 5.6 % | 2005 |
| Comwave Networks | 42 | 5.4 % | 2012 |
| Rogers Communications Canada Inc. (Cable) | 42 | 5.4 % | 2006 |
| Zayo Canada Inc. | 34 | 4.4 % | 2005 |
| Bell Mobility | 33 | 4.3 % | 2001 |
| Fido Solutions Inc. | 26 | 3.4 % | 2001 |
| Videotron Ltd. | 22 | 2.8 % | 2009 |
| Primus Telecommunications Canada Inc. | 18 | 2.3 % | 2008 |
| Bell Canada | 13 | 1.7 % | 2006 |
| Execulink Telecom Inc. | 6 | 0.8 % | 2008 |
| ExaTEL Inc. | 5 | 0.6 % | 2014 |
| IXICA Communications Inc. | 2 | 0.3 % | 2020 |
| Managed Network Systems Inc. | 2 | 0.3 % | 2010 |
Where these numbers land
Prefixes in 289 serve 87 rate centres. A rate centre is the billing area a prefix is attached to, not where the handset is.
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Hamilton | ON | 71 | 16 |
| Oakville | ON | 39 | 15 |
| Oshawa | ON | 36 | 13 |
| St. Catharines-Thorold | ON | 35 | 13 |
| Brampton | ON | 30 | 15 |
| Ajax-Pickering | ON | 29 | 14 |
| Burlington | ON | 28 | 15 |
| Newmarket | ON | 25 | 16 |
| Richmond Hill | ON | 21 | 13 |
| Cooksville | ON | 19 | 11 |
| Streetsville | ON | 17 | 12 |
| Markham | ON | 16 | 10 |
| Thornhill | ON | 16 | 10 |
| Aurora | ON | 15 | 10 |
| Dunnville | ON | 14 | 7 |
| Malton | ON | 14 | 10 |
| Milton | ON | 14 | 11 |
| Niagara Falls | ON | 13 | 7 |
| Woodbridge | ON | 13 | 9 |
| Ancaster | ON | 12 | 9 |
| Clarkson | ON | 11 | 8 |
| Georgetown | ON | 11 | 10 |
| Maple | ON | 11 | 8 |
| Unionville | ON | 10 | 8 |
| Whitby | ON | 10 | 7 |
| Bolton | ON | 9 | 7 |
| Grimsby | ON | 9 | 8 |
| South Pickering | ON | 9 | 8 |
| Welland | ON | 9 | 7 |
| Cobourg | ON | 8 | 7 |
| Dundas | ON | 8 | 6 |
| Fort Erie | ON | 8 | 6 |
| King City | ON | 8 | 6 |
| Mount Hope | ON | 8 | 6 |
| Stoney Creek | ON | 8 | 7 |
| Binbrook | ON | 7 | 5 |
| Oak Ridges | ON | 7 | 7 |
| Caledonia | ON | 6 | 4 |
| Port Credit | ON | 6 | 6 |
| Port Perry | ON | 6 | 5 |
| Stouffville | ON | 6 | 5 |
| Uxbridge | ON | 6 | 5 |
| Waterdown | ON | 6 | 6 |
| Bowmanville | ON | 5 | 3 |
| Hagersville | ON | 5 | 3 |
| Kleinburg | ON | 5 | 5 |
| Niagara-On-The-Lake | ON | 5 | 3 |
| Nobleton | ON | 5 | 5 |
| Caledon East | ON | 4 | 4 |
| Cayuga | ON | 4 | 3 |
| Schomberg | ON | 4 | 4 |
| Beamsville | ON | 3 | 3 |
| Beeton | ON | 3 | 3 |
| Brooklin | ON | 3 | 2 |
| Campbellville | ON | 3 | 3 |
| Castlemore | ON | 3 | 3 |
| Freelton | ON | 3 | 3 |
| Gormley | ON | 3 | 3 |
| Mount Albert | ON | 3 | 3 |
| Palgrave | ON | 3 | 3 |
| Sutton | ON | 3 | 3 |
| West Lincoln | ON | 3 | 3 |
| Winona | ON | 3 | 3 |
| Bethesda | ON | 2 | 2 |
| Bradford | ON | 2 | 2 |
| Keswick | ON | 2 | 2 |
| Newcastle | ON | 2 | 2 |
| Newtonville | ON | 2 | 2 |
| Pelham | ON | 2 | 2 |
| Port Colborne | ON | 2 | 2 |
| Port Hope | ON | 2 | 2 |
| Queensville | ON | 2 | 2 |
| Victoria | ON | 2 | 2 |
| Vineland | ON | 2 | 2 |
| Blackstock | ON | 1 | 1 |
| Claremont | ON | 1 | 1 |
| Colborne | ON | 1 | 1 |
| Fisherville | ON | 1 | 1 |
| Grafton | ON | 1 | 1 |
| Hampton | ON | 1 | 1 |
How the allocation was built up
| Period | Prefixes | Carriers |
|---|---|---|
| 2000–2004 | 32 | 4 |
| 2005–2009 | 343 | 15 |
| 2010–2014 | 298 | 18 |
| 2015–2019 | 97 | 9 |
| 2020–2024 | 2 | 1 |
Overlay area codes
289 shares its rate centres with 905, 365, 742. Overlay codes cover the same ground, which is why ten-digit dialling is required: two neighbours on one street can hold different area codes.
What people check and report about 289 numbers
Searches typed into this site's lookup form since July 28, 2026, plus the verdicts and moderated reports visitors left. A search usually follows a missed call.
- Checks
- 98
- Different numbers
- 94
- Different people
- 90
11 verdicts and 1 report
Scam 55 % (6) · Nuisance 45 % (5) · Safe 0 % (0)
Report types: Telemarketing (1).
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 289-420-5223 | 1 nuisance | 1 | 1 |
Phone and text fraud in Ontario
In 2024 the Canadian Anti-Fraud Centre received 5,002 fraud reports from Ontario where the first contact was a phone call (3,655) or a text (1,347); 2,814 came from victims, who reported $37.1 million lost. The most common types were service, phishing, bank investigator.
January to September 2025: 2,830 reports (-24% on the same months of 2024) and $43.3 million reported lost (+66%).
Source: Canadian Anti-Fraud Centre open data (Open Government Licence – Canada), current to September 29, 2025. These are province-wide figures, not specific to one area code, and only a fraction of fraud is ever reported. Dataset
Had a call from a 289 number?
Most verdicts and reports on these numbers describe scam attempts, so treat an unexpected call as a possible scam.
- Call back on a number you trust
If a caller says they are your bank, the Canada Revenue Agency, a courier or your phone company, hang up and call the organization on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- Report the fraud
Report the call or text to the Canadian Anti-Fraud Centre online or at 1-888-495-8501. If you lost money or gave out personal details, tell your bank first, then your local police.
- Forward suspicious texts to 7726
Forward a scam or spam text to 7726 (SPAM on the keypad). It's free, and your carrier uses it to block the sender. Don't tap links or reply.
Area code 289: questions and answers
Where is area code 289?
289 serves Ontario. Its 772 in-service prefixes belong to 87 rate centres, mainly Hamilton, Oakville, Oshawa and St. Catharines-Thorold.
What time zone is area code 289 in?
Every placed rate centre in 289 is on Eastern Time (ET, UTC−5), with daylight saving time (UTC−4) from the second Sunday in March to the first Sunday in November.
When did area code 289 start?
289 has been in service since June 9, 2001; it was created from 905. It shares its territory with 365, 742 and 905, so a new number there can get any of these codes.
Which carriers hold 289 numbers?
The CNAC register lists 20 carriers with prefixes in 289; the largest are TELUS Integrated Communications (11.8%), Fibernetics Corporation (11.5%) and Iristel Inc. (9.2%). Numbers can be ported, so the original carrier may not be the current one.
Are calls from 289 numbers scams?
Visitors have left 11 verdicts on 289 numbers (6 scam, 5 nuisance, 0 safe) and 1 moderated reports. That covers the numbers people looked up, not all of 289: most belong to ordinary households and businesses, and scammers can display a local number.
Is phone fraud rising in Ontario?
In the Canadian Anti-Fraud Centre's open data, call and text fraud reports from Ontario went from 3,744 in January–September 2024 to 2,830 in the same months of 2025 (-24%). Reported losses went from $26.1 million to $43.3 million.
How do I report a scam call from a 289 number?
Report it to the Canadian Anti-Fraud Centre (1-888-495-8501). If you lost money, call your bank first, then your local police. Unwanted telemarketing goes to the National Do Not Call List, and spam texts can be forwarded to 7726.
Allocated prefixes
Showing 366 of 772 prefixes, largest rate centres first.
Hamilton, ON
289-237 · 289-244 · 289-246 · 289-253 · 289-260 · 289-263 · 289-308 · 289-309 · 289-335 · 289-339
Oakville, ON
289-218 · 289-242 · 289-243 · 289-259 · 289-291 · 289-295 · 289-300 · 289-351 · 289-363 · 289-386
Oshawa, ON
289-222 · 289-240 · 289-254 · 289-274 · 289-312 · 289-316 · 289-355 · 289-356 · 289-367 · 289-385
St. Catharines-Thorold, ON
289-213 · 289-214 · 289-219 · 289-228 · 289-241 · 289-267 · 289-273 · 289-353 · 289-362 · 289-364
Brampton, ON
289-201 · 289-233 · 289-298 · 289-323 · 289-325 · 289-368 · 289-401 · 289-406 · 289-410 · 289-418
Ajax-Pickering, ON
289-200 · 289-224 · 289-255 · 289-275 · 289-314 · 289-315 · 289-372 · 289-387 · 289-388 · 289-403
Burlington, ON
289-208 · 289-230 · 289-245 · 289-266 · 289-288 · 289-293 · 289-313 · 289-337 · 289-348 · 289-419
Newmarket, ON
289-231 · 289-264 · 289-279 · 289-319 · 289-338 · 289-340 · 289-366 · 289-383 · 289-395 · 289-453
Richmond Hill, ON
289-269 · 289-317 · 289-379 · 289-399 · 289-452 · 289-475 · 289-496 · 289-506 · 289-537 · 289-538
Cooksville, ON
289-232 · 289-261 · 289-327 · 289-360 · 289-374 · 289-421 · 289-444 · 289-454 · 289-497 · 289-521
Streetsville, ON
289-290 · 289-305 · 289-334 · 289-375 · 289-457 · 289-540 · 289-652 · 289-719 · 289-726 · 289-814
Markham, ON
289-301 · 289-306 · 289-307 · 289-378 · 289-451 · 289-469 · 289-507 · 289-554 · 289-590 · 289-661
Thornhill, ON
289-390 · 289-459 · 289-472 · 289-502 · 289-510 · 289-514 · 289-561 · 289-582 · 289-588 · 289-593
Aurora, ON
289-221 · 289-258 · 289-380 · 289-466 · 289-552 · 289-571 · 289-614 · 289-648 · 289-796 · 289-802
Dunnville, ON
289-209 · 289-330 · 289-331 · 289-332 · 289-369 · 289-377 · 289-381 · 289-433 · 289-518 · 289-604
Malton, ON
289-247 · 289-328 · 289-359 · 289-384 · 289-548 · 289-562 · 289-623 · 289-625 · 289-721 · 289-729
Milton, ON
289-270 · 289-350 · 289-409 · 289-412 · 289-429 · 289-627 · 289-655 · 289-670 · 289-728 · 289-851
Niagara Falls, ON
289-248 · 289-257 · 289-271 · 289-292 · 289-294 · 289-296 · 289-302 · 289-341 · 289-361 · 289-402
Woodbridge, ON
289-236 · 289-256 · 289-268 · 289-371 · 289-393 · 289-474 · 289-536 · 289-589 · 289-596 · 289-622
Ancaster, ON
289-204 · 289-239 · 289-346 · 289-443 · 289-445 · 289-450 · 289-495 · 289-515 · 289-735 · 289-739
Clarkson, ON
289-299 · 289-326 · 289-373 · 289-420 · 289-628 · 289-727 · 289-825 · 289-826 · 289-849 · 289-898
Georgetown, ON
289-344 · 289-349 · 289-428 · 289-642 · 289-694 · 289-790 · 289-839 · 289-890 · 289-891 · 289-924
Maple, ON
289-217 · 289-304 · 289-342 · 289-357 · 289-468 · 289-532 · 289-553 · 289-583 · 289-832 · 289-917
Unionville, ON
289-333 · 289-392 · 289-473 · 289-563 · 289-577 · 289-584 · 289-789 · 289-806 · 289-844 · 289-884
Whitby, ON
289-220 · 289-278 · 289-483 · 289-509 · 289-638 · 289-717 · 289-732 · 289-893 · 289-985 · 289-989
Bolton, ON
289-206 · 289-461 · 289-487 · 289-503 · 289-585 · 289-616 · 289-651 · 289-875 · 289-906
Grimsby, ON
289-205 · 289-235 · 289-336 · 289-447 · 289-455 · 289-493 · 289-754 · 289-770 · 289-797
South Pickering, ON
289-229 · 289-277 · 289-484 · 289-631 · 289-734 · 289-744 · 289-882 · 289-915 · 289-986
Welland, ON
289-347 · 289-414 · 289-449 · 289-480 · 289-488 · 289-673 · 289-820 · 289-821 · 289-823
Cobourg, ON
289-215 · 289-251 · 289-252 · 289-435 · 289-677 · 289-691 · 289-771 · 289-829
Dundas, ON
289-238 · 289-345 · 289-446 · 289-494 · 289-517 · 289-737 · 289-753 · 289-858
Fort Erie, ON
289-250 · 289-303 · 289-320 · 289-321 · 289-322 · 289-476 · 289-599 · 289-762
King City, ON
289-207 · 289-467 · 289-530 · 289-572 · 289-618 · 289-621 · 289-874 · 289-907
Mount Hope, ON
289-280 · 289-281 · 289-425 · 289-491 · 289-525 · 289-759 · 289-791 · 289-866
Stoney Creek, ON
289-203 · 289-448 · 289-490 · 289-526 · 289-760 · 289-765 · 289-792 · 289-965
Binbrook, ON
289-286 · 289-287 · 289-424 · 289-522 · 289-568 · 289-743 · 289-756
Oak Ridges, ON
289-210 · 289-234 · 289-471 · 289-543 · 289-573 · 289-665 · 289-854
Caledonia, ON
289-284 · 289-285 · 289-523 · 289-751 · 289-757 · 289-960
Port Credit, ON
289-297 · 289-329 · 289-643 · 289-822 · 289-847 · 289-953
Port Perry, ON
289-225 · 289-354 · 289-485 · 289-653 · 289-713 · 289-912
Allocation source: Canadian Numbering Administrator (CNAC), the registry that records which carrier a central-office code was originally issued to. An allocation says who was issued the prefix, not who serves the number today: numbers can be ported between carriers, and caller ID can be spoofed outright.