Phone prefixes in Upton, QC

In numbers

In-service prefixes

2

Telephone numbers covered

20,000

Carriers

2

Area codes

2

Provinces and territories

1

First assignment

June 23, 2022

Most recent assignment

June 23, 2022

Upton’s share of its area codes

Within area code 450, Upton accounts for only 1 of 775 prefixes (0.1%): the code is dominated by Granby and spread over 129 rate centres. Within area code 579, Upton accounts for only 1 of 644 prefixes (0.2%): the code is dominated by Granby and spread over 126 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: La Compagne de Telephone Upton is the only holder in 450; Cooptel is the only holder in 579. No carrier holds prefixes in every one of Upton’s 2 area codes, while 2 appear in just one.

Wireless and wireline

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

How the allocation was built up

Upton’s dated assignments run from 2022 to 2022. The busiest period was 2020–2024, 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. Since 2020 another 1 prefixes have been added, so the rate centre is still growing.

Upton’s oldest prefixes, the ones the register leaves undated, belong to La Compagne de Telephone Upton: this carrier made up the landscape before competition arrived. The first dated assignment went to Cooptel in 2022. The most recent arrivals are Cooptel (2022), a sign that new carriers are still asking for numbers in Upton.

Upton 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 Upton: a market where the incumbent keeps the edge without exclusivity.

Growth is recent: 100.0% of the dated prefixes were assigned in the last ten years, peaking in 2020–2024. Upton is among the rate centres where demand for numbers is still rising quickly.

Dialling a Upton number

Upton 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

Upton 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 Upton number tells you

A number attached to Upton 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 Upton: code 579-556 is recorded for Cooptel, so every 579-556-XXXX number (10,000 possible) descends from that assignment. “Upton, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Upton prefix

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

Allocated prefixes

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

Elsewhere in Quebec