Phone prefixes in Chateau-Richer, QC

In numbers

In-service prefixes

6

Telephone numbers covered

60,000

Carriers

3

Area codes

3

Provinces and territories

1

First assignment

March 18, 2005

Most recent assignment

October 21, 2024

Chateau-Richer’s share of its area codes

Within area code 418, Chateau-Richer accounts for only 3 of 777 prefixes (0.4%): the code is dominated by Quebec and spread over 258 rate centres. Within area code 581, Chateau-Richer accounts for only 2 of 778 prefixes (0.3%): the code is dominated by Quebec and spread over 232 rate centres. Within area code 367, Chateau-Richer accounts for only 1 of 233 prefixes (0.4%): the code is dominated by Quebec and spread over 111 rate centres.

Who holds these numbers

Videotron Ltd. holds the largest share at 3 prefixes, 50.0% of the total, ahead of 2 other carriers. Code by code: in 418, Videotron Ltd. leads with 2 of 3 prefixes ahead of 1 others; in 581, Videotron Ltd. leads with 1 of 2 prefixes ahead of 1 others; Bell Canada is the only holder in 367. No carrier holds prefixes in every one of Chateau-Richer’s 3 area codes, while 1 appears in just one.

Wireless and wireline

None of Chateau-Richer’s holders carries a mobility brand in its registered name: all 6 prefixes belong to wireline or wholesale carriers, among them Videotron Ltd, Telebec Ltee and Bell Canada. A call showing a Chateau-Richer number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Chateau-Richer’s dated assignments run from 2005 to 2024. The busiest period was 2005–2009, when 2 prefixes went to 1 carrier. 1 prefixes (17%) 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.

Chateau-Richer’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 Videotron Ltd. in 2005. The most recent arrivals are Bell Canada (2024), Telebec Ltee. (2018) and Videotron Ltd. (2005), a sign that new carriers are still asking for numbers in Chateau-Richer.

Chateau-Richer has just 6 prefixes (60,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

Videotron Ltd. leads with 50.0% of the prefixes, but 2 competitors have set up in Chateau-Richer: a market where the incumbent keeps the edge without exclusivity.

Demand remains steady: 20.0% of the dated prefixes go back to the last ten years, the most active period being 2005–2009. The rate centre is growing at a regular rather than explosive pace.

1 undated in the register.

Dialling a Chateau-Richer number

Chateau-Richer is served by 3 overlaid area codes (418, 581 and 367). A 367 number is no more “out of town” than a 418 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Chateau-Richer shares area codes 418, 581 and 367 with at least 20 other rate centres, including Quebec, Chicoutimi, Alma, Rimouski, Riviere-du-Loup, Thetford Mines, Sainte-Marie-de-Beauce and Levis. The largest of them, Quebec, holds 282 prefixes in 367, 418 and 581; the smallest on the list, Saint-Henri-de-Levis, has just 16.

What a Chateau-Richer number tells you

A number attached to Chateau-Richer tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Videotron Ltd.. 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 Chateau-Richer: code 418-972 is recorded for Videotron Ltd., so every 418-972-XXXX number (10,000 possible) descends from that assignment. “Chateau-Richer, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Chateau-Richer prefix

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

Had a call from a Chateau-Richer 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 6 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec