Phone prefixes in Mirabel-St-Augustin, QC

In numbers

In-service prefixes

7

Telephone numbers covered

70,000

Carriers

6

Area codes

2

Provinces and territories

1

First assignment

March 7, 2005

Most recent assignment

May 4, 2022

Mirabel-St-Augustin’s share of its area codes

Within area code 579, Mirabel-St-Augustin accounts for only 4 of 644 prefixes (0.6%): the code is dominated by Granby and spread over 126 rate centres. Within area code 450, Mirabel-St-Augustin accounts for only 3 of 775 prefixes (0.4%): the code is dominated by Granby and spread over 129 rate centres.

Who holds these numbers

Videotron Ltd. holds the largest share at 2 prefixes, 28.6% of the total, ahead of 5 other carriers. Code by code: in 579, Comwave Networks leads with 1 of 4 prefixes ahead of 3 others; in 450, Videotron Ltd. leads with 2 of 3 prefixes ahead of 1 others. No carrier holds prefixes in every one of Mirabel-St-Augustin’s 2 area codes, while 6 appear in just one.

Wireless and wireline

None of Mirabel-St-Augustin’s holders carries a mobility brand in its registered name: all 7 prefixes belong to wireline or wholesale carriers, among them Videotron Ltd, Bell Canada, Comwave Networks and Fibernetics Corporation. A call showing a Mirabel-St-Augustin number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Mirabel-St-Augustin’s dated assignments run from 2005 to 2022. The busiest period was 2020–2024, when 3 prefixes went to 3 carriers. 1 prefixes (14%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 3 prefixes have been added, so the rate centre is still growing.

Mirabel-St-Augustin’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 2005. The most recent arrivals are TELUS Quebec (2022), Fibernetics Corporation (2021) and ISP Telecom Inc. (2021), a sign that new carriers are still asking for numbers in Mirabel-St-Augustin.

Mirabel-St-Augustin has just 7 prefixes (70,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

No single carrier dominates Mirabel-St-Augustin: the leader, Videotron Ltd., holds only 28.6% of the prefixes against 5 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 2020–2024. Mirabel-St-Augustin is among the rate centres where demand for numbers is still rising quickly.

1 undated in the register.

Dialling a Mirabel-St-Augustin number

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

The numbering neighbourhood

Mirabel-St-Augustin shares area codes 579 and 450 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, Lachute, has just 17.

What a Mirabel-St-Augustin number tells you

A number attached to Mirabel-St-Augustin 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 6 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 Mirabel-St-Augustin: code 450-414 is recorded for Videotron Ltd., so every 450-414-XXXX number (10,000 possible) descends from that assignment. “Mirabel-St-Augustin, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Mirabel-St-Augustin prefix

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

Allocated prefixes

All 7 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec