Phone prefixes in St-Nazaire, QC

In numbers

In-service prefixes

2

Telephone numbers covered

20,000

Carriers

2

Area codes

1

Provinces and territories

1

First assignment

May 13, 2011

Most recent assignment

May 13, 2011

St-Nazaire’s share of its area code

Within area code 819, St-Nazaire accounts for only 2 of 770 prefixes (0.3%): the code is dominated by Ottawa-Hull and spread over 211 rate centres.

Who holds these numbers

Cooptel holds the largest share at 1 prefixes, 50.0% of the total, ahead of 1 other carrier. Code by code: in 819, Cooptel leads with 1 of 2 prefixes ahead of 1 others.

Wireless and wireline

None of St-Nazaire’s holders carries a mobility brand in its registered name: all 2 prefixes belong to wireline or wholesale carriers, among them Cooptel and Telebec Ltee. A call showing a St-Nazaire number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

St-Nazaire’s dated assignments run from 2011 to 2011. The busiest period was 2010–2014, when 1 prefixes went to 1 carrier. 1 prefixes (50%) 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 St-Nazaire is flat.

St-Nazaire’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 Cooptel in 2011. The most recent arrivals are Cooptel (2011), a sign that new carriers are still asking for numbers in St-Nazaire.

St-Nazaire has just 2 prefixes (20,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

Cooptel leads with 50.0% of the prefixes, but 1 competitors have set up in St-Nazaire: a market where the incumbent keeps the edge without exclusivity.

Allocation is mature: only 0.0% of the dated prefixes are less than ten years old, most having been handed out in 2010–2014, and 1 prefixes go back to the undated monopoly era. New St-Nazaire numbers mostly come out of blocks that were assigned long ago.

Dialling a St-Nazaire number

A single area code, 819, covers St-Nazaire, and it is not overlaid with any other code on this territory: one of the few parts of Canada where seven-digit local dialling may still work. From abroad, dial +1 819 and the seven-digit number.

The numbering neighbourhood

St-Nazaire shares area code 819 with at least 20 other rate centres, including Ottawa-Hull, Sherbrooke, Trois-Rivieres, Drummondville, Val-D'Or, Gatineau, Shawinigan and Rouyn-Noranda. The largest of them, Ottawa-Hull, holds 83 prefixes in 819; the smallest on the list, Plessisville, has just 6.

What a St-Nazaire number tells you

A number attached to St-Nazaire tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Cooptel. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 2 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-Nazaire: code 819-558 is recorded for Cooptel, so every 819-558-XXXX number (10,000 possible) descends from that assignment. “St-Nazaire, Quebec” there names a rate centre, not a municipality.

Every St-Nazaire prefix

Each row is an in-service central-office code recorded for St-Nazaire, with its original holder and year of assignment.

Had a call from a St-Nazaire number?

No clear pattern in reports on these numbers yet. If a call worried you:

1. 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.

2. 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.

   Report to the Canadian Anti-Fraud Centre ↗

3. 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.

   National Do Not Call List ↗Who can still call you ↗

4. 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.

   Get Cyber Safe: forwarding to 7726 ↗

Allocated prefixes

All 2 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec