Phone prefixes in Lac-Frontiere, QC

In numbers

In-service prefixes

1

Telephone numbers covered

10,000

Carriers

1

Area codes

1

Provinces and territories

1

Lac-Frontiere’s share of its area code

Within area code 418, Lac-Frontiere accounts for only 1 of 777 prefixes (0.1%): the code is dominated by Quebec and spread over 258 rate centres.

Who holds these numbers

Sogetel Inc. holds every prefix here. Code by code: Sogetel Inc. is the only holder in 418.

Wireless and wireline

None of Lac-Frontiere’s holders carries a mobility brand in its registered name: all 1 prefixes belong to wireline or wholesale carriers, among them Sogetel Inc. A call showing a Lac-Frontiere number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

The register dates none of Lac-Frontiere’s assignments: all 1 prefixes predate CNAC’s record-keeping, the signature of an old, settled network where nothing has been added in decades.

Sogetel Inc. is the only carrier ever recorded for Lac-Frontiere: no competitor has obtained a prefix here. A single-carrier rate centre is typical of small communities where only the incumbent ever built a network.

Lac-Frontiere has just 1 prefix (10,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

The local market is an allocation monopoly: Sogetel Inc. holds every prefix, and no competitor has ever requested a code for Lac-Frontiere.

Dialling a Lac-Frontiere number

A single area code, 418, covers Lac-Frontiere, and it is not overlaid with any other code on this territory: one of the few parts of Canada where seven-digit local dialling may still work. From abroad, dial +1 418 and the seven-digit number.

The numbering neighbourhood

Lac-Frontiere shares area code 418 with at least 20 other rate centres, including Quebec, Chicoutimi, Rimouski, Alma, Riviere-du-Loup, Saint-Georges-de-Beauce, Sainte-Marie-de-Beauce and Thetford Mines. The largest of them, Quebec, holds 142 prefixes in 418; the smallest on the list, Saint-Tite, has just 6.

What a Lac-Frontiere number tells you

A number attached to Lac-Frontiere tells you that its prefix was issued to a carrier for this rate centre in Quebec, most often Sogetel Inc.. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 1 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 Lac-Frontiere: code 418-245 is recorded for Sogetel Inc., so every 418-245-XXXX number (10,000 possible) descends from that assignment. “Lac-Frontiere, Quebec” there names a rate centre, not a municipality.

Every Lac-Frontiere prefix

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

Allocated prefixes

All 1 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec