Phone prefixes in Laval-Ouest, QC

In numbers

In-service prefixes

24

Telephone numbers covered

240,000

Carriers

11

Area codes

2

Provinces and territories

1

First assignment

April 20, 2004

Most recent assignment

March 1, 2024

Laval-Ouest’s share of its area codes

Within area code 450, Laval-Ouest accounts for only 13 of 775 prefixes (1.7%): the code is dominated by Granby and spread over 129 rate centres. Within area code 579, Laval-Ouest accounts for only 11 of 644 prefixes (1.7%): the code is dominated by Granby and spread over 126 rate centres.

Who holds these numbers

Iristel Inc. holds the largest share at 7 prefixes, 29.2% of the total, ahead of 10 other carriers. Code by code: in 450, Bell Canada leads with 4 of 13 prefixes ahead of 6 others; in 579, Iristel Inc. leads with 4 of 11 prefixes ahead of 6 others. 3 carriers hold prefixes in every one of Laval-Ouest’s 2 area codes, while 8 appear in just one.

Wireless and wireline

1 of Laval-Ouest’s 24 prefixes (4.2%) are held by carriers whose registered name marks a wireless business: Fido Solutions Inc. Wireline prefixes still outnumber them, carried by Iristel Inc, Bell Canada, Fibernetics Corporation and IXICA Communications Inc. 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

Laval-Ouest’s dated assignments run from 2004 to 2024. The busiest period was 2015–2019, when 6 prefixes went to 3 carriers. 4 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 5 prefixes have been added, so the rate centre is still growing.

Laval-Ouest’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 2004. The most recent arrivals are IXICA Communications Inc. (2021), Distributel (2018) and InnSysVoice Corp (2015), a sign that new carriers are still asking for numbers in Laval-Ouest.

Laval-Ouest has only 24 prefixes, or 240,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates Laval-Ouest: the leader, Iristel Inc., holds only 29.2% of the prefixes against 10 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: 25.0% 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.

4 undated in the register.

Dialling a Laval-Ouest number

Laval-Ouest is served by 2 overlaid area codes (450 and 579). A 579 number is no more “out of town” than a 450 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Laval-Ouest shares area codes 450 and 579 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, Terrebonne, has just 17.

What a Laval-Ouest number tells you

A number attached to Laval-Ouest tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Iristel Inc.. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 11 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 Laval-Ouest: code 450-233 is recorded for Iristel Inc., so every 450-233-XXXX number (10,000 possible) descends from that assignment. “Laval-Ouest, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Laval-Ouest prefix

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

Had a call from a Laval-Ouest 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 24 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec