Phone prefixes in Tadoussac, QC

In numbers

In-service prefixes

7

Telephone numbers covered

70,000

Carriers

6

Area codes

2

Provinces and territories

1

First assignment

July 21, 2006

Most recent assignment

October 19, 2016

Tadoussac’s share of its area codes

Within area code 418, Tadoussac accounts for only 4 of 777 prefixes (0.5%): the code is dominated by Quebec and spread over 258 rate centres. Within area code 581, Tadoussac accounts for only 3 of 778 prefixes (0.4%): the code is dominated by Quebec and spread over 232 rate centres.

Who holds these numbers

Videotron Ltd. holds the largest share at 2 prefixes, 28.6% of the total, ahead of 5 other carriers. Code by code: in 418, Videotron Ltd. leads with 1 of 4 prefixes ahead of 3 others; in 581, Videotron Ltd. leads with 1 of 3 prefixes ahead of 2 others. 1 carrier holds prefixes in every one of Tadoussac’s 2 area codes, while 5 appear in just one.

Wireless and wireline

3 of Tadoussac’s 7 prefixes (42.9%) are held by carriers whose registered name marks a wireless business: Bell Mobility, Rogers Communications Canada Inc. (Wireless) and TELUS Mobility. Wireline prefixes still outnumber them, carried by Videotron Ltd, Bell Canada and Telecommunications Xittel Inc. 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

Tadoussac’s dated assignments run from 2006 to 2016. The busiest period was 2005–2009, when 3 prefixes went to 3 carriers. 1 prefixes (14%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. No prefix has been added since 2020: demand for numbers in Tadoussac is flat.

Tadoussac’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 Rogers Communications Canada Inc. (Wireless) in 2006. The most recent arrivals are TELUS Mobility (2016), Telecommunications Xittel Inc (2011) and Bell Mobility (2007), a sign that new carriers are still asking for numbers in Tadoussac.

Tadoussac has just 7 prefixes (70,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

No single carrier dominates Tadoussac: the leader, Videotron Ltd., holds only 28.6% of the prefixes against 5 competitors, a sign of a highly fragmented market where cable companies, mobility brands and VoIP providers weigh as much as the incumbent.

Allocation is mature: only 0.0% of the dated prefixes are less than ten years old, most having been handed out in 2005–2009, and 1 prefixes go back to the undated monopoly era. New Tadoussac numbers mostly come out of blocks that were assigned long ago.

1 undated in the register.

Dialling a Tadoussac number

Tadoussac is served by 2 overlaid area codes (418 and 581). A 581 number is no more “out of town” than a 418 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Tadoussac shares area codes 418 and 581 with at least 20 other rate centres, including Quebec, Chicoutimi, Rimouski, Alma, Riviere-du-Loup, Thetford Mines, Levis and Saint-Georges-de-Beauce. The largest of them, Quebec, holds 245 prefixes in 418 and 581; the smallest on the list, Chibougamau, has just 11.

What a Tadoussac number tells you

A number attached to Tadoussac 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 6 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 Tadoussac: code 418-980 is recorded for Videotron Ltd., so every 418-980-XXXX number (10,000 possible) descends from that assignment. “Tadoussac, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Tadoussac prefix

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

Allocated prefixes

All 7 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec