Phone prefixes in St-Jean-de-Matha, QC
St-Jean-de-Matha, QC is a rate centre in the Canadian numbering plan. CNAC records 7 in-service prefixes there, held by 7 carriers and spread across 2 area codes (579, 450). With 7 prefixes, St-Jean-de-Matha is a small rate centre within Quebec: 160th of 593, holding 0.1% of the province’s prefixes, and 728th of 2,920 rate centres across Canada.
Background reading: Canadian area codes, overlays, and what a 416 number actually tells you · Caller ID spoofing, STIR/SHAKEN, and how to actually block calls in Canada
Where St-Jean-de-Matha is
- Province or territory
- Quebec
- Census division
- Matawinie
- Matched place
- Saint-Jean-de-Matha
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- Nearest rate centres
- St-Gabriel-de-Brandon (12 km), St-Felix-de-Valois (13 km), Saint-Gabriel (14 km), Saint-Come (21 km), Rawdon (28 km)
Divisions and places: Statistics Canada and NRCan. Straight-line distances.
In numbers
- In-service prefixes
- 7
- Telephone numbers covered
- 70,000
- Carriers
- 7
- Area codes
- 2
- Provinces and territories
- 1
- First assignment
- September 28, 2011
- Most recent assignment
- May 15, 2025
St-Jean-de-Matha’s share of its area codes
Within area code 579, St-Jean-de-Matha accounts for only 5 of 644 prefixes (0.8%): the code is dominated by Granby and spread over 126 rate centres. Within area code 450, St-Jean-de-Matha accounts for only 2 of 775 prefixes (0.3%): the code is dominated by Granby and spread over 129 rate centres.
| Area codes | Prefixes here | Prefixes in code | Share | Range | Largest rate centre |
|---|---|---|---|---|---|
| 579 | 5 | 644 | 0.8 % | 579-342 – 579-553 | Granby |
| 450 | 2 | 775 | 0.3 % | 450-832 – 450-886 | Granby |
Who holds these numbers
Bell Canada holds the largest share at 1 prefixes, 14.3% of the total, ahead of 6 other carriers. Code by code: in 579, Cooptel leads with 1 of 5 prefixes ahead of 4 others; in 450, Bell Canada leads with 1 of 2 prefixes ahead of 1 others. No carrier holds prefixes in every one of St-Jean-de-Matha’s 2 area codes, while 7 appear in just one.
| Carrier | 579 | 450 | Total |
|---|---|---|---|
| Bell Canada | — | 1 | 1 |
| Cooptel | 1 | — | 1 |
| Distributel | 1 | — | 1 |
| Fibernetics Corporation | 1 | — | 1 |
| ISP Telecom Inc. | — | 1 | 1 |
| TELUS Quebec | 1 | — | 1 |
| Videotron Ltd. | 1 | — | 1 |
Wireless and wireline
None of St-Jean-de-Matha’s holders carries a mobility brand in its registered name: all 7 prefixes belong to wireline or wholesale carriers, among them Bell Canada, Cooptel, Distributel and Fibernetics Corporation. A call showing a St-Jean-de-Matha number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.
How the allocation was built up
St-Jean-de-Matha’s dated assignments run from 2011 to 2025. The busiest period was 2015–2019, when 3 prefixes went to 3 carriers. 1 prefixes (14%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 2 prefixes have been added, so the rate centre is still growing.
St-Jean-de-Matha’s oldest prefixes, the ones the register leaves undated, belong to Bell Canada: this carrier made up the landscape before competition arrived. The first dated assignment went to ISP Telecom Inc. in 2011. The most recent arrivals are TELUS Quebec (2025), Fibernetics Corporation (2021) and Cooptel (2019), a sign that new carriers are still asking for numbers in St-Jean-de-Matha.
St-Jean-de-Matha has just 7 prefixes (70,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.
No single carrier dominates St-Jean-de-Matha: the leader, Bell Canada, holds only 14.3% of the prefixes against 6 competitors, a sign of a highly fragmented market where cable companies, mobility brands and VoIP providers weigh as much as the incumbent.
Demand remains steady: 33.3% of the dated prefixes go back to the last ten years, the most active period being 2015–2019. The rate centre is growing at a regular rather than explosive pace.
| Period | Prefixes | Carriers |
|---|---|---|
| 2010–2014 | 1 | 1 |
| 2015–2019 | 3 | 3 |
| 2020–2024 | 1 | 1 |
| 2025–2029 | 1 | 1 |
1 undated in the register.
Dialling a St-Jean-de-Matha number
St-Jean-de-Matha is served by 2 overlaid area codes (579 and 450). A 450 number is no more “out of town” than a 579 one; from abroad, dial +1 and the full ten digits.
The numbering neighbourhood
St-Jean-de-Matha shares area codes 579 and 450 with at least 20 other rate centres, including Granby, Joliette, St-Jerome, St-Hyacinthe, Longueuil, Ste-Therese, Pont-Viau and Sorel. The largest of them, Granby, holds 51 prefixes in 450 and 579; the smallest on the list, Lachute, has just 17.
| Rate centre | Province | Shared codes | Prefixes | Carriers |
|---|---|---|---|---|
| Granby | QC | 450, 579 | 51 | 15 |
| Joliette | QC | 450, 579 | 46 | 15 |
| St-Jerome | QC | 450, 579 | 45 | 12 |
| St-Hyacinthe | QC | 450, 579 | 41 | 16 |
| Longueuil | QC | 450, 579 | 39 | 11 |
| Ste-Therese | QC | 450, 579 | 37 | 12 |
| Pont-Viau | QC | 450, 579 | 35 | 13 |
| Sorel | QC | 450, 579 | 35 | 13 |
| St-Lambert | QC | 450, 579 | 35 | 11 |
| St-Jean | QC | 450, 579 | 34 | 12 |
| Chomedey | QC | 450, 579 | 33 | 13 |
| Valleyfield | QC | 450, 579 | 31 | 12 |
| Laval-Ouest | QC | 450, 579 | 24 | 11 |
| St-Eustache | QC | 450, 579 | 22 | 8 |
| Ste-Rose | QC | 450, 579 | 21 | 11 |
| Boucherville | QC | 450, 579 | 20 | 10 |
| Laval-Est | QC | 450, 579 | 20 | 11 |
| Beloeil | QC | 450, 579 | 17 | 9 |
| Chateauguay | QC | 450, 579 | 17 | 8 |
| Lachute | QC | 450, 579 | 17 | 7 |
What a St-Jean-de-Matha number tells you
A number attached to St-Jean-de-Matha tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Bell Canada. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 7 carriers present here or to a VoIP service usable anywhere. Nor does it tell you who is calling: caller ID can be spoofed, and a Quebec area code is easy to borrow to look local.
Reading a register entry for St-Jean-de-Matha: code 450-886 is recorded for Bell Canada, so every 450-886-XXXX number (10,000 possible) descends from that assignment. “St-Jean-de-Matha, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.
Every St-Jean-de-Matha prefix
Each row is an in-service central-office code recorded for St-Jean-de-Matha, with its original holder and year of assignment.
| Prefix | Carrier | Assigned |
|---|---|---|
| 450-832 | ISP Telecom Inc. | 2011 |
| 450-886 | Bell Canada | undated |
| 579-342 | Distributel | 2018 |
| 579-364 | Videotron Ltd. | 2015 |
| 579-448 | Cooptel | 2019 |
| 579-461 | Fibernetics Corporation | 2021 |
| 579-553 | TELUS Quebec | 2025 |
Had a call from a St-Jean-de-Matha 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.
Frequently asked
What is the area code for St-Jean-de-Matha?
St-Jean-de-Matha does not have one area code but 2: 579 and 450. The best-stocked is 579. All are dialled with ten digits and none is “more local” than another.
Is a call from St-Jean-de-Matha a cellphone or a landline?
More likely a landline or a VoIP service: mobility brands hold only 0.0% of St-Jean-de-Matha’s prefixes.
Which carrier is behind a St-Jean-de-Matha number?
In the register, Bell Canada holds the most prefixes in St-Jean-de-Matha (1 of 7), ahead of 6 other carriers. Code 450-886, for instance, belongs to Bell Canada.
Is this St-Jean-de-Matha number a scam?
The register cannot say: it records who a prefix was issued to, not who is calling. Search the full number above to see the reports filed against it.
What is the newest prefix in St-Jean-de-Matha?
The latest code brought into service is 579-553, assigned to TELUS Quebec on May 15, 2025. At the other end, the oldest dated prefix, 450-832, goes to ISP Telecom Inc. (September 28, 2011). A number in a recent prefix almost always belongs to a subscriber who signed up after that date.
What time zone is St-Jean-de-Matha in?
St-Jean-de-Matha 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.
Allocated prefixes
All 7 in-service prefixes, grouped by rate centre.
St-Jean-de-Matha, QC
450-832 · 450-886 · 579-342 · 579-364 · 579-448 · 579-461 · 579-553
Elsewhere in Quebec
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Montreal | QC | 1,273 | 23 |
| Quebec | QC | 282 | 16 |
| Ottawa-Hull | QC | 122 | 18 |
| Sherbrooke | QC | 104 | 17 |
| Trois-Rivieres | QC | 71 | 16 |
| Chicoutimi | QC | 64 | 16 |
| Alma | QC | 48 | 13 |
| Drummondville | QC | 45 | 17 |
| Pointe-Claire | QC | 40 | 14 |
| Lachine | QC | 38 | 14 |
| Rimouski | QC | 36 | 11 |
| Ste-Genevieve | QC | 33 | 13 |
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.