Phone prefixes in Nantes, QC

In numbers

In-service prefixes

4

Telephone numbers covered

40,000

Carriers

3

Area codes

2

Provinces and territories

1

First assignment

June 26, 2017

Most recent assignment

October 22, 2025

Nantes’s share of its area codes

Within area code 873, Nantes accounts for only 3 of 667 prefixes (0.4%): the code is dominated by Sherbrooke and spread over 162 rate centres. Within area code 819, Nantes 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

Videotron Ltd. holds the largest share at 2 prefixes, 50.0% of the total, ahead of 2 other carriers. Code by code: in 873, Videotron Ltd. leads with 2 of 3 prefixes ahead of 1 others; Telephone Milot Inc. is the only holder in 819. No carrier holds prefixes in every one of Nantes’s 2 area codes, while 3 appear in just one.

Wireless and wireline

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

How the allocation was built up

Nantes’s dated assignments run from 2017 to 2025. The busiest period was 2015–2019, 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 2 prefixes have been added, so the rate centre is still growing.

Nantes’s oldest prefixes, the ones the register leaves undated, belong to Telephone Milot Inc: this carrier made up the landscape before competition arrived. The first dated assignment went to Videotron Ltd. in 2017. The most recent arrivals are TELUS Quebec (2025) and Videotron Ltd. (2017), a sign that new carriers are still asking for numbers in Nantes.

Nantes 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.

Videotron Ltd. leads with 50.0% of the prefixes, but 2 competitors have set up in Nantes: a market where the incumbent keeps the edge without exclusivity.

Growth is recent: 66.7% of the dated prefixes were assigned in the last ten years, peaking in 2015–2019. Nantes is among the rate centres where demand for numbers is still rising quickly.

1 undated in the register.

Dialling a Nantes number

Nantes 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

Nantes 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 Nantes number tells you

A number attached to Nantes tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Videotron Ltd.. 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 Nantes: code 873-464 is recorded for Videotron Ltd., so every 873-464-XXXX number (10,000 possible) descends from that assignment. “Nantes, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Nantes prefix

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

Had a call from a Nantes 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 4 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec