Phone prefixes in St-Jean-de-Dieu, QC
St-Jean-de-Dieu, QC is a rate centre in the Canadian numbering plan. CNAC records 3 in-service prefixes there, held by 3 carriers and spread across 2 area codes (581, 418). With 3 prefixes, St-Jean-de-Dieu is a small rate centre within Quebec: 397th of 593, holding 0.1% of the province’s prefixes, and 1558th of 2,921 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
In numbers
- In-service prefixes
- 3
- Telephone numbers covered
- 30,000
- Carriers
- 3
- Area codes
- 2
- Provinces and territories
- 1
- First assignment
- January 11, 2012
- Most recent assignment
- March 25, 2022
St-Jean-de-Dieu’s share of its area codes
Within area code 581, St-Jean-de-Dieu accounts for only 2 of 778 prefixes (0.3%): the code is dominated by Quebec and spread over 232 rate centres. Within area code 418, St-Jean-de-Dieu accounts for only 1 of 777 prefixes (0.1%): the code is dominated by Quebec and spread over 258 rate centres.
| Area codes | Prefixes here | Prefixes in code | Share | Range | Largest rate centre |
|---|---|---|---|---|---|
| 581 | 2 | 778 | 0.3 % | 581-646 – 581-697 | Quebec |
| 418 | 1 | 777 | 0.1 % | 418-963 – 418-963 | Quebec |
Who holds these numbers
Bell Canada holds the largest share at 1 prefixes, 33.3% of the total, ahead of 2 other carriers. Code by code: in 581, TELUS Quebec leads with 1 of 2 prefixes ahead of 1 others; Bell Canada is the only holder in 418. No carrier holds prefixes in every one of St-Jean-de-Dieu’s 2 area codes, while 3 appear in just one.
| Carrier | 581 | 418 | Total |
|---|---|---|---|
| Bell Canada | — | 1 | 1 |
| TELUS Quebec | 1 | — | 1 |
| Videotron Ltd. | 1 | — | 1 |
Wireless and wireline
None of St-Jean-de-Dieu’s holders carries a mobility brand in its registered name: all 3 prefixes belong to wireline or wholesale carriers, among them Bell Canada, TELUS Quebec and Videotron Ltd. A call showing a St-Jean-de-Dieu 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-Dieu’s dated assignments run from 2012 to 2022. The busiest period was 2010–2014, when 1 prefixes went to 1 carrier. 1 prefixes (33%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 1 prefixes have been added, so the rate centre is still growing.
St-Jean-de-Dieu’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 Videotron Ltd. in 2012. The most recent arrivals are TELUS Quebec (2022) and Videotron Ltd. (2012), a sign that new carriers are still asking for numbers in St-Jean-de-Dieu.
St-Jean-de-Dieu has just 3 prefixes (30,000 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-Dieu: the leader, Bell Canada, holds only 33.3% of the prefixes against 2 competitors, a sign of a highly fragmented market where cable companies, mobility brands and VoIP providers weigh as much as the incumbent.
Growth is recent: 50.0% of the dated prefixes were assigned in the last ten years, peaking in 2010–2014. St-Jean-de-Dieu is among the rate centres where demand for numbers is still rising quickly.
| Period | Prefixes | Carriers |
|---|---|---|
| 2010–2014 | 1 | 1 |
| 2020–2024 | 1 | 1 |
1 undated in the register.
Dialling a St-Jean-de-Dieu number
St-Jean-de-Dieu is served by 2 overlaid area codes (581 and 418). A 418 number is no more “out of town” than a 581 one; from abroad, dial +1 and the full ten digits.
The numbering neighbourhood
St-Jean-de-Dieu shares area codes 581 and 418 with at least 20 other rate centres, including Quebec, Chicoutimi, Rimouski, Alma, Riviere-du-Loup, Thetford Mines, Levis and Saint-Georges-de-Beauce. The largest of them, Quebec, holds 245 prefixes in 418 and 581; the smallest on the list, Chibougamau, has just 11.
| Rate centre | Province | Shared codes | Prefixes | Carriers |
|---|---|---|---|---|
| Quebec | QC | 418, 581 | 245 | 15 |
| Chicoutimi | QC | 418, 581 | 54 | 15 |
| Rimouski | QC | 418, 581 | 33 | 9 |
| Alma | QC | 418, 581 | 31 | 12 |
| Riviere-du-Loup | QC | 418, 581 | 28 | 10 |
| Thetford Mines | QC | 418, 581 | 26 | 12 |
| Levis | QC | 418, 581 | 22 | 9 |
| Saint-Georges-de-Beauce | QC | 418, 581 | 22 | 7 |
| Sainte-Marie-de-Beauce | QC | 418, 581 | 22 | 9 |
| Montmagny | QC | 418, 581 | 18 | 8 |
| St-Felicien | QC | 418, 581 | 18 | 11 |
| Donnacona | QC | 418, 581 | 17 | 8 |
| Baie-Comeau (Hauterive) | QC | 418, 581 | 16 | 8 |
| Jonquiere | QC | 418, 581 | 16 | 7 |
| Loretteville | QC | 418, 581 | 16 | 7 |
| Sept-Iles | QC | 418, 581 | 15 | 6 |
| La Malbaie | QC | 418, 581 | 14 | 8 |
| Saint-Henri-de-Levis | QC | 418, 581 | 13 | 6 |
| Matane | QC | 418, 581 | 12 | 6 |
| Chibougamau | QC | 418, 581 | 11 | 7 |
What a St-Jean-de-Dieu number tells you
A number attached to St-Jean-de-Dieu 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 3 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-Dieu: code 418-963 is recorded for Bell Canada, so every 418-963-XXXX number (10,000 possible) descends from that assignment. “St-Jean-de-Dieu, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.
Every St-Jean-de-Dieu prefix
Each row is an in-service central-office code recorded for St-Jean-de-Dieu, with its original holder and year of assignment.
| Prefix | Carrier | Assigned |
|---|---|---|
| 418-963 | Bell Canada | undated |
| 581-646 | Videotron Ltd. | 2012 |
| 581-697 | TELUS Quebec | 2022 |
Frequently asked
What is the area code for St-Jean-de-Dieu?
St-Jean-de-Dieu does not have one area code but 2: 581 and 418. The best-stocked is 581. All are dialled with ten digits and none is “more local” than another.
Is a call from St-Jean-de-Dieu a cellphone or a landline?
More likely a landline or a VoIP service: mobility brands hold only 0.0% of St-Jean-de-Dieu’s prefixes.
Which carrier is behind a St-Jean-de-Dieu number?
In the register, Bell Canada holds the most prefixes in St-Jean-de-Dieu (1 of 3), ahead of 2 other carriers. Code 418-963, for instance, belongs to Bell Canada.
Is this St-Jean-de-Dieu 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-Dieu?
The latest code brought into service is 581-697, assigned to TELUS Quebec on March 25, 2022. At the other end, the oldest dated prefix, 581-646, goes to Videotron Ltd. (January 11, 2012). A number in a recent prefix almost always belongs to a subscriber who signed up after that date.
Allocated prefixes
All 3 in-service prefixes, grouped by rate centre.
St-Jean-de-Dieu, QC
418-963 · 581-646 · 581-697
Elsewhere in Quebec
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Montreal | QC | 1,273 | 23 |
| Ottawa-Hull | QC | 122 | 18 |
| Sherbrooke | QC | 104 | 17 |
| Trois-Rivieres | QC | 71 | 16 |
| Granby | QC | 52 | 16 |
| Joliette | QC | 48 | 16 |
| St-Jerome | QC | 46 | 12 |
| Drummondville | QC | 45 | 17 |
| St-Hyacinthe | QC | 42 | 17 |
| Longueuil | QC | 41 | 13 |
| Pointe-Claire | QC | 40 | 14 |
| Lachine | QC | 38 | 14 |
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.