Phone prefixes in Gatineau, QC

In numbers

In-service prefixes

28

Telephone numbers covered

280,000

Carriers

9

Area codes

2

Provinces and territories

1

First assignment

May 17, 2002

Most recent assignment

October 22, 2025

Gatineau’s share of its area codes

Within area code 819, Gatineau accounts for only 15 of 770 prefixes (1.9%): the code is dominated by Ottawa-Hull and spread over 211 rate centres. Within area code 873, Gatineau accounts for only 13 of 667 prefixes (1.9%): the code is dominated by Sherbrooke and spread over 162 rate centres.

Who holds these numbers

Bell Canada holds the largest share at 6 prefixes, 21.4% of the total, ahead of 8 other carriers. Code by code: in 819, Videotron Ltd. leads with 4 of 15 prefixes ahead of 5 others; in 873, Bell Canada leads with 3 of 13 prefixes ahead of 6 others. 4 carriers hold prefixes in every one of Gatineau’s 2 area codes, while 5 appear in just one.

Wireless and wireline

None of Gatineau’s holders carries a mobility brand in its registered name: all 28 prefixes belong to wireline or wholesale carriers, among them Bell Canada, Videotron Ltd, Iristel Inc and TELUS Quebec. A call showing a Gatineau number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Gatineau’s dated assignments run from 2002 to 2025. The busiest period was 2015–2019, when 7 prefixes went to 6 carriers. 3 prefixes (11%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 6 prefixes have been added, so the rate centre is still growing.

Gatineau’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 2002. The most recent arrivals are Distributel (2018), InnSysVoice Corp (2018) and Bell Canada (2017), a sign that new carriers are still asking for numbers in Gatineau.

Gatineau has only 28 prefixes, or 280,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates Gatineau: the leader, Bell Canada, holds only 21.4% of the prefixes against 8 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: 24.0% of the dated prefixes go back to the last ten years, the most active period being 2015–2019. The rate centre is growing at a regular rather than explosive pace.

3 undated in the register.

Dialling a Gatineau number

Gatineau 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

Gatineau shares area codes 819 and 873 with at least 20 other rate centres, including Ottawa-Hull, Sherbrooke, Trois-Rivieres, Drummondville, Victoriaville, Val-D'Or, Maniwaki and Rouyn-Noranda. The largest of them, Ottawa-Hull, holds 119 prefixes in 819 and 873; the smallest on the list, Plessisville, has just 11.

What a Gatineau number tells you

A number attached to Gatineau tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Bell Canada. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 9 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 Gatineau: code 819-643 is recorded for Bell Canada, so every 819-643-XXXX number (10,000 possible) descends from that assignment. “Gatineau, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Gatineau prefix

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

What people check and report about Gatineau numbers

Searches typed into this site's lookup form since July 28, 2026, plus the verdicts and moderated reports visitors left. A search usually follows a missed call.

Had a call from a Gatineau number?

No clear pattern in reports on these numbers yet. If a call worried you:

1. Call back on a number you trust

   If a caller says they are your bank, the Canada Revenue Agency, a courier or your phone company, hang up and call the organization on the number from its website or your statement, never the number that called you. Caller ID can be faked.

2. Report the fraud

   Report the call or text to the Canadian Anti-Fraud Centre online or at 1-888-495-8501. If you lost money or gave out personal details, tell your bank first, then your local police.

   Report to the Canadian Anti-Fraud Centre ↗

3. Register on the National Do Not Call List

   Registering a landline or mobile on the National DNCL is free. Registered charities, political parties, newspapers and companies you already do business with may still call.

   National Do Not Call List ↗Who can still call you ↗

4. Forward suspicious texts to 7726

   Forward a scam or spam text to 7726 (SPAM on the keypad). It's free, and your carrier uses it to block the sender. Don't tap links or reply.

   Get Cyber Safe: forwarding to 7726 ↗

Allocated prefixes

All 28 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec