Area code 742
Area code 742 holds 149 in-service central-office prefixes in the CNAC register, covering roughly 1,490,000 telephone numbers. They are split between 14 carriers and 68 rate centres. The largest is Brampton. Recorded assignments run from June 17, 2021 to February 27, 2026. That ranks it 42 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 742 at a glance
- Province or territory
- Ontario
- Main rate centres
- Brampton, Hamilton, St. Catharines-Thorold, Ajax-Pickering, Markham
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- In service since
- October 16, 2021
- Split or overlaid from
- 905
- Number format
- 742-NXX-XXXX · +1 742 NXX XXXX
Sources: CNAC, NANPA (September 25, 2026), Statistics Canada.
In numbers
- In-service prefixes
- 149
- Telephone numbers covered
- 1,490,000
- Carriers
- 14
- Rate centres
- 68
- Provinces and territories
- 1
- First assignment
- June 17, 2021
- Most recent assignment
- February 27, 2026
Who holds these numbers
FGLTEL Inc. holds the largest share at 34 prefixes, 22.8% of the total, ahead of 13 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| FGLTEL Inc. | 34 | 22.8 % | 2022 |
| Beanfield Technologies Inc. | 24 | 16.1 % | 2021 |
| Rogers Communications Canada Inc. (Cable) | 16 | 10.7 % | 2022 |
| IXICA Communications Inc. | 15 | 10.1 % | 2021 |
| Fibernetics Corporation | 13 | 8.7 % | 2023 |
| Cogeco Connexion Inc. | 12 | 8.1 % | 2024 |
| Rogers Communications Canada Inc. (Wireless) | 10 | 6.7 % | 2023 |
| Bell Mobility | 7 | 4.7 % | 2023 |
| TELUS Mobility | 6 | 4.0 % | 2021 |
| Iristel Inc. | 5 | 3.4 % | 2022 |
| ISP Telecom Inc. | 3 | 2.0 % | 2021 |
| Fido Solutions Inc. | 2 | 1.3 % | 2022 |
| TELUS Integrated Communications | 1 | 0.7 % | 2021 |
| Videotron Ltd. | 1 | 0.7 % | 2024 |
Where these numbers land
Prefixes in 742 serve 68 rate centres. A rate centre is the billing area a prefix is attached to, not where the handset is.
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Brampton | ON | 11 | 6 |
| Hamilton | ON | 8 | 4 |
| St. Catharines-Thorold | ON | 8 | 5 |
| Ajax-Pickering | ON | 6 | 4 |
| Markham | ON | 4 | 4 |
| Cobourg | ON | 3 | 3 |
| Cooksville | ON | 3 | 3 |
| Newmarket | ON | 3 | 3 |
| Niagara Falls | ON | 3 | 3 |
| Oshawa | ON | 3 | 3 |
| Pelham | ON | 3 | 3 |
| Richmond Hill | ON | 3 | 3 |
| Streetsville | ON | 3 | 3 |
| Thornhill | ON | 3 | 3 |
| Uxbridge | ON | 3 | 3 |
| Wainfleet | ON | 3 | 3 |
| Aurora | ON | 2 | 2 |
| Bethesda | ON | 2 | 2 |
| Bolton | ON | 2 | 2 |
| Burlington | ON | 2 | 2 |
| Caledon East | ON | 2 | 2 |
| Castlemore | ON | 2 | 2 |
| Claremont | ON | 2 | 2 |
| Clarkson | ON | 2 | 2 |
| Georgetown | ON | 2 | 2 |
| Gormley | ON | 2 | 2 |
| Keswick | ON | 2 | 2 |
| King City | ON | 2 | 2 |
| Kleinburg | ON | 2 | 2 |
| Malton | ON | 2 | 2 |
| Maple | ON | 2 | 2 |
| Milton | ON | 2 | 2 |
| Mount Albert | ON | 2 | 2 |
| Niagara-On-The-Lake | ON | 2 | 2 |
| Oak Ridges | ON | 2 | 2 |
| South Pickering | ON | 2 | 2 |
| Stouffville | ON | 2 | 2 |
| Sutton | ON | 2 | 2 |
| Unionville | ON | 2 | 2 |
| Welland | ON | 2 | 2 |
| Wellandport | ON | 2 | 2 |
| Whitby | ON | 2 | 2 |
| Woodbridge | ON | 2 | 2 |
| Beamsville | ON | 1 | 1 |
| Beeton | ON | 1 | 1 |
| Blackstock | ON | 1 | 1 |
| Bowmanville | ON | 1 | 1 |
| Bradford | ON | 1 | 1 |
| Brooklin | ON | 1 | 1 |
| Cayuga | ON | 1 | 1 |
| Fisherville | ON | 1 | 1 |
| Freelton | ON | 1 | 1 |
| Hampton | ON | 1 | 1 |
| Newcastle | ON | 1 | 1 |
| Newtonville | ON | 1 | 1 |
| Nobleton | ON | 1 | 1 |
| Palgrave | ON | 1 | 1 |
| Port Colborne | ON | 1 | 1 |
| Port Credit | ON | 1 | 1 |
| Port Perry | ON | 1 | 1 |
| Port Robinson | ON | 1 | 1 |
| Queensville | ON | 1 | 1 |
| Schomberg | ON | 1 | 1 |
| Selkirk | ON | 1 | 1 |
| Snelgrove | ON | 1 | 1 |
| Tottenham | ON | 1 | 1 |
| Victoria | ON | 1 | 1 |
| Vineland | ON | 1 | 1 |
How the allocation was built up
| Period | Prefixes | Carriers |
|---|---|---|
| 2020–2024 | 126 | 14 |
| 2025–2029 | 23 | 6 |
Overlay area codes
742 shares its rate centres with 365, 905, 289. 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 742 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.
1 verdict and 0 reports
1 scam, 0 nuisance, 0 safe. Too few to show shares yet.
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 742 number?
No clear pattern in reports on these numbers yet. If a call worried you:
- 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.
- Register on the National Do Not Call List
Registering a landline or mobile on the National DNCL is free. Registered charities, political parties, newspapers and companies you already do business with may still call.
- 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 742: questions and answers
Where is area code 742?
742 serves Ontario. Its 149 in-service prefixes belong to 68 rate centres, mainly Brampton, Hamilton, St. Catharines-Thorold and Ajax-Pickering.
What time zone is area code 742 in?
Every placed rate centre in 742 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 742 start?
742 has been in service since October 16, 2021; it was created from 905. It shares its territory with 289, 365 and 905, so a new number there can get any of these codes.
Which carriers hold 742 numbers?
The CNAC register lists 14 carriers with prefixes in 742; the largest are FGLTEL Inc. (22.8%), Beanfield Technologies Inc. (16.1%) and Rogers Communications Canada Inc. (Cable) (10.7%). Numbers can be ported, so the original carrier may not be the current one.
Are calls from 742 numbers scams?
Visitors have left 1 verdicts on 742 numbers (1 scam, 0 nuisance, 0 safe) and 0 moderated reports. That covers the numbers people looked up, not all of 742: 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 742 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 117 of 149 prefixes, largest rate centres first.
Brampton, ON
742-222 · 742-239 · 742-247 · 742-472 · 742-588 · 742-614 · 742-615 · 742-616 · 742-688 · 742-701
Hamilton, ON
742-218 · 742-444 · 742-550 · 742-556 · 742-558 · 742-855 · 742-880 · 742-999
St. Catharines-Thorold, ON
742-212 · 742-213 · 742-219 · 742-220 · 742-488 · 742-599 · 742-601 · 742-666
Ajax-Pickering, ON
742-229 · 742-400 · 742-745 · 742-986 · 742-987 · 742-988
Markham, ON
742-280 · 742-377 · 742-771 · 742-777
Cobourg, ON
742-288 · 742-350 · 742-450
Cooksville, ON
742-245 · 742-583 · 742-724
Newmarket, ON
742-250 · 742-379 · 742-772
Niagara Falls, ON
742-500 · 742-770 · 742-882
Oshawa, ON
742-260 · 742-333 · 742-746
Pelham, ON
742-442 · 742-884 · 742-888
Richmond Hill, ON
742-200 · 742-385 · 742-773
Streetsville, ON
742-244 · 742-300 · 742-532
Thornhill, ON
742-228 · 742-389 · 742-774
Uxbridge, ON
742-392 · 742-899 · 742-901
Wainfleet, ON
742-422 · 742-788 · 742-889
Aurora, ON
742-368 · 742-989
Bethesda, ON
742-369 · 742-990
Bolton, ON
742-370 · 742-991
Burlington, ON
742-401 · 742-700
Caledon East, ON
742-240 · 742-301
Castlemore, ON
742-242 · 742-302
Claremont, ON
742-371 · 742-992
Clarkson, ON
742-246 · 742-303
Georgetown, ON
742-461 · 742-885
Gormley, ON
742-372 · 742-993
Keswick, ON
742-373 · 742-994
King City, ON
742-374 · 742-995
Kleinburg, ON
742-375 · 742-996
Malton, ON
742-227 · 742-243
Maple, ON
742-376 · 742-997
Milton, ON
742-234 · 742-886
Mount Albert, ON
742-378 · 742-998
Niagara-On-The-Lake, ON
742-367 · 742-776
Oak Ridges, ON
742-210 · 742-381
South Pickering, ON
742-276 · 742-747
Stouffville, ON
742-312 · 742-387
Sutton, ON
742-388 · 742-800
Unionville, ON
742-391 · 742-900
Welland, ON
742-225 · 742-883
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.