Phone prefixes in St-Celestin, QC

In numbers

In-service prefixes

4

Telephone numbers covered

40,000

Carriers

4

Area codes

2

Provinces and territories

1

First assignment

September 7, 2006

Most recent assignment

November 28, 2022

St-Celestin’s share of its area codes

Within area code 819, St-Celestin accounts for only 2 of 770 prefixes (0.3%): the code is dominated by Ottawa-Hull and spread over 211 rate centres. Within area code 873, St-Celestin accounts for only 2 of 667 prefixes (0.3%): the code is dominated by Sherbrooke and spread over 162 rate centres.

Who holds these numbers

9164-3122 Quebec inc holds the largest share at 1 prefixes, 25.0% of the total, ahead of 3 other carriers. Code by code: in 819, 9164-3122 Quebec inc leads with 1 of 2 prefixes ahead of 1 others; in 873, Bell Canada leads with 1 of 2 prefixes ahead of 1 others. No carrier holds prefixes in every one of St-Celestin’s 2 area codes, while 4 appear in just one.

Wireless and wireline

None of St-Celestin’s holders carries a mobility brand in its registered name: all 4 prefixes belong to wireline or wholesale carriers, among them 9164-3122 Quebec inc, Bell Canada, TELUS Quebec and Telebec Ltee. A call showing a St-Celestin number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

St-Celestin’s dated assignments run from 2006 to 2022. 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.

St-Celestin’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 9164-3122 Quebec inc in 2006. The most recent arrivals are Bell Canada (2022), TELUS Quebec (2014) and 9164-3122 Quebec inc (2006), a sign that new carriers are still asking for numbers in St-Celestin.

St-Celestin 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.

No single carrier dominates St-Celestin: the leader, 9164-3122 Quebec inc, holds only 25.0% of the prefixes against 3 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: 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 St-Celestin number

St-Celestin is served by 2 overlaid area codes (819 and 873). A 873 number is no more “out of town” than a 819 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

St-Celestin shares area codes 819 and 873 with at least 20 other rate centres, including Ottawa-Hull, Sherbrooke, Trois-Rivieres, Drummondville, Gatineau, Victoriaville, Val-D'Or and Maniwaki. The largest of them, Ottawa-Hull, holds 119 prefixes in 819 and 873; the smallest on the list, Ville-Marie, has just 12.

What a St-Celestin number tells you

A number attached to St-Celestin tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often 9164-3122 Quebec inc. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 4 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 St-Celestin: code 819-963 is recorded for 9164-3122 Quebec inc, so every 819-963-XXXX number (10,000 possible) descends from that assignment. “St-Celestin, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every St-Celestin prefix

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

Allocated prefixes

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

Elsewhere in Quebec