Phone prefixes in Chisasibi, QC

In numbers

In-service prefixes

3

Telephone numbers covered

30,000

Carriers

3

Area codes

2

Provinces and territories

1

First assignment

April 11, 2017

Most recent assignment

July 19, 2021

Chisasibi’s share of its area codes

Within area code 873, Chisasibi accounts for only 2 of 667 prefixes (0.3%): the code is dominated by Sherbrooke and spread over 162 rate centres. Within area code 819, Chisasibi accounts for only 1 of 770 prefixes (0.1%): the code is dominated by Ottawa-Hull and spread over 211 rate centres.

Who holds these numbers

Bell Mobility holds the largest share at 1 prefixes, 33.3% of the total, ahead of 2 other carriers. Code by code: in 873, Bell Mobility leads with 1 of 2 prefixes ahead of 1 others; Telebec Ltee. is the only holder in 819. No carrier holds prefixes in every one of Chisasibi’s 2 area codes, while 3 appear in just one.

Wireless and wireline

1 of Chisasibi’s 3 prefixes (33.3%) are held by carriers whose registered name marks a wireless business: Bell Mobility. Wireline prefixes still outnumber them, carried by SSi Micro Ltd and Telebec Ltee. 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

Chisasibi’s dated assignments run from 2017 to 2021. The busiest period was 2015–2019, when 1 prefixes went to 1 carrier. 1 prefixes (33%) 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.

Chisasibi’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 Bell Mobility in 2017. The most recent arrivals are SSi Micro Ltd. (2021) and Bell Mobility (2017), a sign that new carriers are still asking for numbers in Chisasibi.

Chisasibi has just 3 prefixes (30,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

No single carrier dominates Chisasibi: the leader, Bell Mobility, holds only 33.3% of the prefixes against 2 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 2015–2019. Chisasibi is among the rate centres where demand for numbers is still rising quickly.

1 undated in the register.

Dialling a Chisasibi number

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

The numbering neighbourhood

Chisasibi shares area codes 873 and 819 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 Chisasibi number tells you

A number attached to Chisasibi tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Bell Mobility. 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 Chisasibi: code 873-365 is recorded for Bell Mobility, so every 873-365-XXXX number (10,000 possible) descends from that assignment. “Chisasibi, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Chisasibi prefix

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

Allocated prefixes

All 3 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec