Phone prefixes in La Sarre, QC
La Sarre, QC is a rate centre in the Canadian numbering plan. CNAC records 8 in-service prefixes there, held by 5 carriers and spread across 2 area codes (819, 873). With 8 prefixes, La Sarre is a small rate centre within Quebec: 128th of 593, holding 0.1% of the province’s prefixes, and 608th 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 La Sarre is
- Province or territory
- Quebec
- Census division
- Abitibi-Ouest
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- Nearest rate centres
- Dupuy (13 km), Macamic (13 km), Palmarolle (17 km), Normetal (21 km), La Reine (21 km)
Divisions and places: Statistics Canada and NRCan. Straight-line distances.
In numbers
- In-service prefixes
- 8
- Telephone numbers covered
- 80,000
- Carriers
- 5
- Area codes
- 2
- Provinces and territories
- 1
- First assignment
- August 1, 2006
- Most recent assignment
- August 18, 2016
La Sarre’s share of its area codes
Within area code 819, La Sarre accounts for only 6 of 770 prefixes (0.8%): the code is dominated by Ottawa-Hull and spread over 211 rate centres. Within area code 873, La Sarre accounts for only 2 of 667 prefixes (0.3%): the code is dominated by Sherbrooke and spread over 162 rate centres.
| Area codes | Prefixes here | Prefixes in code | Share | Range | Largest rate centre |
|---|---|---|---|---|---|
| 819 | 6 | 770 | 0.8 % | 819-301 – 819-940 | Ottawa-Hull |
| 873 | 2 | 667 | 0.3 % | 873-380 – 873-474 | Sherbrooke |
Who holds these numbers
Bell Mobility holds the largest share at 2 prefixes, 25.0% of the total, ahead of 4 other carriers. Code by code: in 819, Bell Mobility leads with 2 of 6 prefixes ahead of 3 others; in 873, ISP Telecom Inc. leads with 1 of 2 prefixes ahead of 1 others. 1 carrier holds prefixes in every one of La Sarre’s 2 area codes, while 4 appear in just one.
| Carrier | 819 | 873 | Total |
|---|---|---|---|
| Bell Mobility | 2 | — | 2 |
| ISP Telecom Inc. | 1 | 1 | 2 |
| Telebec Ltee. | 2 | — | 2 |
| TELUS Mobility | 1 | — | 1 |
| TELUS Quebec | — | 1 | 1 |
Wireless and wireline
3 of La Sarre’s 8 prefixes (37.5%) are held by carriers whose registered name marks a wireless business: Bell Mobility and TELUS Mobility. Wireline prefixes still outnumber them, carried by ISP Telecom Inc, Telebec Ltee and TELUS Quebec. This is a sort by name, not a licence lookup, and a mobile prefix may have been ported to another network since.
How the allocation was built up
La Sarre’s dated assignments run from 2006 to 2016. The busiest period was 2005–2009, when 3 prefixes went to 2 carriers. 2 prefixes (25%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. No prefix has been added since 2020: demand for numbers in La Sarre is flat.
La Sarre’s oldest prefixes, the ones the register leaves undated, belong to Telebec Ltee: this carrier made up the landscape before competition arrived. The first dated assignment went to Bell Mobility in 2006. The most recent arrivals are TELUS Quebec (2014), ISP Telecom Inc. (2013) and TELUS Mobility (2007), a sign that new carriers are still asking for numbers in La Sarre.
La Sarre has just 8 prefixes (80,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.
No single carrier dominates La Sarre: the leader, Bell Mobility, holds only 25.0% of the prefixes against 4 competitors, a sign of a highly fragmented market where cable companies, mobility brands and VoIP providers weigh as much as the incumbent.
Allocation is mature: only 0.0% of the dated prefixes are less than ten years old, most having been handed out in 2005–2009, and 2 prefixes go back to the undated monopoly era. New La Sarre numbers mostly come out of blocks that were assigned long ago.
| Period | Prefixes | Carriers |
|---|---|---|
| 2005–2009 | 3 | 2 |
| 2010–2014 | 2 | 2 |
| 2015–2019 | 1 | 1 |
2 undated in the register.
Dialling a La Sarre number
La Sarre is served by 2 overlaid area codes (819 and 873). A 873 number is no more “out of town” than a 819 one; from abroad, dial +1 and the full ten digits.
The numbering neighbourhood
La Sarre shares area codes 819 and 873 with at least 20 other rate centres, including Ottawa-Hull, Sherbrooke, Trois-Rivieres, Drummondville, Gatineau, Victoriaville, Val-D'Or and Maniwaki. The largest of them, Ottawa-Hull, holds 119 prefixes in 819 and 873; the smallest on the list, Ville-Marie, has just 12.
| Rate centre | Province | Shared codes | Prefixes | Carriers |
|---|---|---|---|---|
| Ottawa-Hull | QC | 819, 873 | 119 | 17 |
| Sherbrooke | QC | 819, 873 | 101 | 16 |
| Trois-Rivieres | QC | 819, 873 | 70 | 15 |
| Drummondville | QC | 819, 873 | 44 | 16 |
| Gatineau | QC | 819, 873 | 28 | 9 |
| Victoriaville | QC | 819, 873 | 28 | 11 |
| Val-D'Or | QC | 819, 873 | 27 | 10 |
| Maniwaki | QC | 819, 873 | 25 | 13 |
| Rouyn-Noranda | QC | 819, 873 | 24 | 10 |
| Shawinigan | QC | 819, 873 | 23 | 11 |
| Amos | QC | 819, 873 | 22 | 10 |
| Ste-Agathe | QC | 819, 873 | 20 | 9 |
| Lac-Megantic | QC | 819, 873 | 19 | 12 |
| Mont-Laurier | QC | 819, 873 | 16 | 8 |
| Buckingham | QC | 819, 873 | 15 | 8 |
| St-Jovite | QC | 819, 873 | 15 | 7 |
| Aylmer | QC | 819, 873 | 14 | 8 |
| Magog | QC | 819, 873 | 14 | 5 |
| Arthabaska | QC | 819, 873 | 13 | 6 |
| Ville-Marie | QC | 819, 873 | 12 | 7 |
What a La Sarre number tells you
A number attached to La Sarre tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Bell Mobility. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 5 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 La Sarre: code 819-301 is recorded for Bell Mobility, so every 819-301-XXXX number (10,000 possible) descends from that assignment. “La Sarre, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.
Every La Sarre prefix
Each row is an in-service central-office code recorded for La Sarre, with its original holder and year of assignment.
| Prefix | Carrier | Assigned |
|---|---|---|
| 819-301 | Bell Mobility | 2006 |
| 819-333 | Telebec Ltee. | undated |
| 819-339 | Telebec Ltee. | undated |
| 819-482 | Bell Mobility | 2009 |
| 819-520 | TELUS Mobility | 2007 |
| 819-940 | ISP Telecom Inc. | 2013 |
| 873-380 | TELUS Quebec | 2014 |
| 873-474 | ISP Telecom Inc. | 2016 |
Had a call from a La Sarre 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 La Sarre?
La Sarre does not have one area code but 2: 819 and 873. The best-stocked is 819. All are dialled with ten digits and none is “more local” than another.
Is a call from La Sarre a cellphone or a landline?
More likely a landline or a VoIP service: mobility brands hold only 37.5% of La Sarre’s prefixes.
Which carrier is behind a La Sarre number?
In the register, Bell Mobility holds the most prefixes in La Sarre (2 of 8), ahead of 4 other carriers. Code 819-301, for instance, belongs to Bell Mobility.
Is this La Sarre 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 La Sarre?
The latest code brought into service is 873-474, assigned to ISP Telecom Inc. on August 18, 2016. At the other end, the oldest dated prefix, 819-301, goes to Bell Mobility (August 1, 2006). A number in a recent prefix almost always belongs to a subscriber who signed up after that date.
What time zone is La Sarre in?
La Sarre 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 8 in-service prefixes, grouped by rate centre.
La Sarre, QC
819-301 · 819-333 · 819-339 · 819-482 · 819-520 · 819-940 · 873-380 · 873-474
Elsewhere in Quebec
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Montreal | QC | 1,273 | 23 |
| Quebec | QC | 282 | 16 |
| Chicoutimi | QC | 64 | 16 |
| Granby | QC | 52 | 16 |
| Alma | QC | 48 | 13 |
| Joliette | QC | 48 | 16 |
| St-Jerome | QC | 46 | 12 |
| St-Hyacinthe | QC | 42 | 17 |
| Longueuil | QC | 41 | 13 |
| Pointe-Claire | QC | 40 | 14 |
| Lachine | QC | 38 | 14 |
| Ste-Therese | QC | 38 | 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.