Area code 548
Area code 548 holds 504 in-service central-office prefixes in the CNAC register, covering roughly 5,040,000 telephone numbers. They are split between 21 carriers and 170 rate centres. The largest is London. Recorded assignments run from November 18, 2015 to June 4, 2026. That ranks it 36 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 548 at a glance
- Province or territory
- Ontario
- Main rate centres
- London, Kitchener-Waterloo, Windsor, Brantford, Guelph
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- In service since
- June 4, 2016
- Split or overlaid from
- 226
- Number format
- 548-NXX-XXXX · +1 548 NXX XXXX
Sources: CNAC, NANPA (September 25, 2026), Statistics Canada.
In numbers
- In-service prefixes
- 504
- Telephone numbers covered
- 5,040,000
- Carriers
- 21
- Rate centres
- 170
- Provinces and territories
- 1
- First assignment
- November 18, 2015
- Most recent assignment
- June 4, 2026
Who holds these numbers
Fibernetics Corporation holds the largest share at 158 prefixes, 31.3% of the total, ahead of 20 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| Fibernetics Corporation | 158 | 31.3 % | 2020 |
| Iristel Inc. | 63 | 12.5 % | 2016 |
| ISP Telecom Inc. | 57 | 11.3 % | 2019 |
| Rogers Communications Canada Inc. (Wireless) | 37 | 7.3 % | 2016 |
| IXICA Communications Inc. | 27 | 5.4 % | 2021 |
| Rogers Communications Canada Inc. (Cable) | 22 | 4.4 % | 2017 |
| Distributel | 21 | 4.2 % | 2018 |
| Videotron Ltd. | 20 | 4.0 % | 2022 |
| Bell Canada | 18 | 3.6 % | 2016 |
| TELUS Integrated Communications | 17 | 3.4 % | 2017 |
| Rogers Communications Canada Inc. | 15 | 3.0 % | 2019 |
| TELUS Mobility | 11 | 2.2 % | 2015 |
| Cogeco Connexion Inc. | 10 | 2.0 % | 2024 |
| Bragg Communications Inc. | 7 | 1.4 % | 2025 |
| Bell Mobility | 6 | 1.2 % | 2021 |
| Fido Solutions Inc. | 4 | 0.8 % | 2018 |
| Quadro Communications Co-operative Inc. | 4 | 0.8 % | 2021 |
| Brooke Telecom Co-operative Ltd. | 2 | 0.4 % | 2021 |
| Gosfield North Communication Co-operative Ltd. | 2 | 0.4 % | 2022 |
| Mornington Communications Co-operative Ltd. | 2 | 0.4 % | 2022 |
| Wightman Communications Ltd. | 1 | 0.2 % | 2021 |
Where these numbers land
Prefixes in 548 serve 170 rate centres. A rate centre is the billing area a prefix is attached to, not where the handset is.
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| London | ON | 37 | 12 |
| Kitchener-Waterloo | ON | 25 | 13 |
| Windsor | ON | 20 | 7 |
| Brantford | ON | 13 | 9 |
| Guelph | ON | 12 | 10 |
| Sarnia | ON | 11 | 7 |
| Listowel | ON | 10 | 4 |
| Leamington | ON | 9 | 7 |
| Mount Forest | ON | 9 | 3 |
| Chatham | ON | 8 | 6 |
| Essex | ON | 8 | 5 |
| Owen Sound | ON | 7 | 6 |
| Simcoe | ON | 7 | 6 |
| St. Thomas | ON | 7 | 5 |
| Goderich | ON | 6 | 4 |
| Orangeville | ON | 6 | 4 |
| Woodstock | ON | 6 | 5 |
| Clinton | ON | 5 | 5 |
| Kingsville | ON | 5 | 4 |
| Pelee Island | ON | 5 | 5 |
| Stratford | ON | 5 | 5 |
| Tavistock | ON | 5 | 5 |
| Tecumseh | ON | 5 | 4 |
| Amherstburg | ON | 4 | 3 |
| Comber | ON | 4 | 4 |
| Elmira | ON | 4 | 4 |
| Emeryville | ON | 4 | 4 |
| Galt | ON | 4 | 4 |
| La Salle | ON | 4 | 3 |
| New Hamburg | ON | 4 | 4 |
| Pleasant Park | ON | 4 | 4 |
| Acton | ON | 3 | 3 |
| Ayr | ON | 3 | 3 |
| Belle River | ON | 3 | 3 |
| Belmont | ON | 3 | 3 |
| Bothwell | ON | 3 | 3 |
| Breslau | ON | 3 | 3 |
| Brigden | ON | 3 | 3 |
| Burford | ON | 3 | 3 |
| Durham | ON | 3 | 2 |
| Harrow | ON | 3 | 3 |
| Hespeler | ON | 3 | 3 |
| Maidstone | ON | 3 | 3 |
| McGregor | ON | 3 | 3 |
| Palmerston | ON | 3 | 3 |
| Paris | ON | 3 | 3 |
| Petrolia | ON | 3 | 3 |
| Port Lambton | ON | 3 | 3 |
| Sombra | ON | 3 | 3 |
| St. George | ON | 3 | 3 |
| Stoney Point | ON | 3 | 3 |
| Tillsonburg | ON | 3 | 2 |
| Watford | ON | 3 | 3 |
| Wheatley | ON | 3 | 3 |
| Wingham | ON | 3 | 3 |
| Woodslee | ON | 3 | 3 |
| Wyoming | ON | 3 | 3 |
| Ailsa Craig | ON | 2 | 2 |
| Alvinston | ON | 2 | 2 |
| Arthur | ON | 2 | 2 |
| Aylmer | ON | 2 | 2 |
| Beachville | ON | 2 | 2 |
| Blenheim | ON | 2 | 2 |
| Bright's Grove | ON | 2 | 2 |
| Caledon | ON | 2 | 2 |
| Corunna | ON | 2 | 2 |
| Courtright | ON | 2 | 2 |
| Crediton | ON | 2 | 2 |
| Dorchester | ON | 2 | 2 |
| Drayton | ON | 2 | 2 |
| Dresden | ON | 2 | 2 |
| Drumbo | ON | 2 | 2 |
| Flesherton | ON | 2 | 2 |
| Glencoe | ON | 2 | 2 |
| Grand Valley | ON | 2 | 2 |
| Harrietsville | ON | 2 | 2 |
| Harriston | ON | 2 | 2 |
| Hepworth | ON | 2 | 2 |
| Highgate | ON | 2 | 2 |
| Hillsburgh | ON | 2 | 2 |
How the allocation was built up
| Period | Prefixes | Carriers |
|---|---|---|
| 2015–2019 | 117 | 10 |
| 2020–2024 | 359 | 18 |
| 2025–2029 | 28 | 8 |
Overlay area codes
548 shares its rate centres with 519, 226, 382. 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 548 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
- 29
- Different numbers
- 25
- Different people
- 26
2 verdicts and 1 report
2 scam, 0 nuisance, 0 safe. Too few to show shares yet.
Report types: Scam (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 548 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 548: questions and answers
Where is area code 548?
548 serves Ontario. Its 504 in-service prefixes belong to 170 rate centres, mainly London, Kitchener-Waterloo, Windsor and Brantford.
What time zone is area code 548 in?
Every placed rate centre in 548 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 548 start?
548 has been in service since June 4, 2016; it was created from 226. It shares its territory with 226, 382 and 519, so a new number there can get any of these codes.
Which carriers hold 548 numbers?
The CNAC register lists 21 carriers with prefixes in 548; the largest are Fibernetics Corporation (31.3%), Iristel Inc. (12.5%) and ISP Telecom Inc. (11.3%). Numbers can be ported, so the original carrier may not be the current one.
Are calls from 548 numbers scams?
Visitors have left 2 verdicts on 548 numbers (2 scam, 0 nuisance, 0 safe) and 1 moderated reports. That covers the numbers people looked up, not all of 548: 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 548 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 232 of 504 prefixes, largest rate centres first.
London, ON
548-206 · 548-216 · 548-217 · 548-340 · 548-341 · 548-342 · 548-343 · 548-344 · 548-345 · 548-346
Kitchener-Waterloo, ON
548-212 · 548-219 · 548-255 · 548-279 · 548-288 · 548-333 · 548-350 · 548-384 · 548-390 · 548-398
Windsor, ON
548-204 · 548-292 · 548-332 · 548-389 · 548-474 · 548-517 · 548-708 · 548-709 · 548-960 · 548-961
Brantford, ON
548-210 · 548-328 · 548-338 · 548-385 · 548-595 · 548-800 · 548-880 · 548-882 · 548-885 · 548-900
Guelph, ON
548-209 · 548-316 · 548-408 · 548-452 · 548-557 · 548-761 · 548-762 · 548-808 · 548-855 · 548-922
Sarnia, ON
548-203 · 548-386 · 548-454 · 548-466 · 548-504 · 548-581 · 548-582 · 548-591 · 548-897 · 548-995
Listowel, ON
548-325 · 548-327 · 548-355 · 548-405 · 548-550 · 548-551 · 548-552 · 548-553 · 548-556 · 548-828
Leamington, ON
548-324 · 548-334 · 548-515 · 548-564 · 548-700 · 548-784 · 548-875 · 548-918 · 548-919
Mount Forest, ON
548-272 · 548-335 · 548-336 · 548-337 · 548-339 · 548-395 · 548-533 · 548-633 · 548-733
Chatham, ON
548-201 · 548-396 · 548-465 · 548-526 · 548-797 · 548-798 · 548-886 · 548-996
Essex, ON
548-400 · 548-406 · 548-407 · 548-562 · 548-766 · 548-772 · 548-906 · 548-987
Owen Sound, ON
548-208 · 548-295 · 548-434 · 548-505 · 548-506 · 548-646 · 548-877
Simcoe, ON
548-214 · 548-294 · 548-331 · 548-502 · 548-559 · 548-630 · 548-755
St. Thomas, ON
548-205 · 548-394 · 548-538 · 548-586 · 548-589 · 548-920 · 548-986
Goderich, ON
548-248 · 548-281 · 548-409 · 548-410 · 548-433 · 548-980
Orangeville, ON
548-213 · 548-256 · 548-503 · 548-584 · 548-587 · 548-978
Woodstock, ON
548-207 · 548-387 · 548-397 · 548-453 · 548-497 · 548-887
Clinton, ON
548-202 · 548-280 · 548-457 · 548-640 · 548-972
Kingsville, ON
548-500 · 548-513 · 548-563 · 548-778 · 548-857
Pelee Island, ON
548-230 · 548-266 · 548-701 · 548-785 · 548-799
Stratford, ON
548-215 · 548-560 · 548-585 · 548-844 · 548-992
Tavistock, ON
548-223 · 548-549 · 548-655 · 548-686 · 548-848
Tecumseh, ON
548-516 · 548-565 · 548-666 · 548-776 · 548-876
Amherstburg, ON
548-444 · 548-512 · 548-561 · 548-775
Comber, ON
548-257 · 548-299 · 548-583 · 548-783
Elmira, ON
548-227 · 548-402 · 548-580 · 548-872
Emeryville, ON
548-252 · 548-260 · 548-399 · 548-780
Galt, ON
548-218 · 548-477 · 548-558 · 548-956
La Salle, ON
548-253 · 548-263 · 548-514 · 548-777
New Hamburg, ON
548-228 · 548-312 · 548-520 · 548-849
Pleasant Park, ON
548-261 · 548-699 · 548-782 · 548-832
Acton, ON
548-380 · 548-461 · 548-825
Ayr, ON
548-510 · 548-822 · 548-867
Belle River, ON
548-200 · 548-249 · 548-779
Belmont, ON
548-239 · 548-639 · 548-717
Bothwell, ON
548-224 · 548-289 · 548-371
Breslau, ON
548-401 · 548-833 · 548-868
Brigden, ON
548-297 · 548-413 · 548-834
Burford, ON
548-225 · 548-286 · 548-981
Durham, ON
548-254 · 548-290 · 548-291
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.