Phone prefixes in Ste-Adele, QC

In numbers

In-service prefixes

4

Telephone numbers covered

40,000

Carriers

3

Area codes

2

Provinces and territories

1

First assignment

May 19, 2006

Most recent assignment

February 9, 2021

Ste-Adele’s share of its area codes

Within area code 450, Ste-Adele accounts for only 2 of 775 prefixes (0.3%): the code is dominated by Granby and spread over 129 rate centres. Within area code 579, Ste-Adele accounts for only 2 of 644 prefixes (0.3%): the code is dominated by Granby and spread over 126 rate centres.

Who holds these numbers

TELUS Quebec holds the largest share at 2 prefixes, 50.0% of the total, ahead of 2 other carriers. Code by code: in 450, TELUS Quebec leads with 1 of 2 prefixes ahead of 1 others; in 579, TELUS Quebec leads with 1 of 2 prefixes ahead of 1 others. 1 carrier holds prefixes in every one of Ste-Adele’s 2 area codes, while 2 appear in just one.

Wireless and wireline

None of Ste-Adele’s holders carries a mobility brand in its registered name: all 4 prefixes belong to wireline or wholesale carriers, among them TELUS Quebec, Bell Canada and Videotron Ltd. A call showing a Ste-Adele number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Ste-Adele’s dated assignments run from 2006 to 2021. The busiest period was 2005–2009, when 1 prefixes went to 1 carrier. 1 prefixes (25%) 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.

Ste-Adele’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 TELUS Quebec in 2006. The most recent arrivals are Videotron Ltd. (2021) and TELUS Quebec (2006), a sign that new carriers are still asking for numbers in Ste-Adele.

Ste-Adele has just 4 prefixes (40,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

TELUS Quebec leads with 50.0% of the prefixes, but 2 competitors have set up in Ste-Adele: a market where the incumbent keeps the edge without exclusivity.

Demand remains steady: 33.3% 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 Ste-Adele number

Ste-Adele 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

Ste-Adele 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, Lachute, has just 17.

What a Ste-Adele number tells you

A number attached to Ste-Adele tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often TELUS Quebec. 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 Ste-Adele: code 450-745 is recorded for TELUS Quebec, so every 450-745-XXXX number (10,000 possible) descends from that assignment. “Ste-Adele, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Ste-Adele prefix

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

Allocated prefixes

All 4 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec