Phone prefixes in Oak Lake, MB

In numbers

In-service prefixes

3

Telephone numbers covered

30,000

Carriers

3

Area codes

2

Provinces and territories

1

First assignment

June 23, 2017

Most recent assignment

June 21, 2022

Oak Lake’s share of its area codes

Within area code 431, Oak Lake accounts for only 2 of 572 prefixes (0.3%): the code is dominated by Winnipeg and spread over 146 rate centres. Within area code 204, Oak Lake accounts for only 1 of 781 prefixes (0.1%): the code is dominated by Winnipeg and spread over 245 rate centres.

Who holds these numbers

MTS Inc. holds the largest share at 1 prefixes, 33.3% of the total, ahead of 2 other carriers. Code by code: in 431, RFNow Inc. leads with 1 of 2 prefixes ahead of 1 others; MTS Inc. is the only holder in 204. No carrier holds prefixes in every one of Oak Lake’s 2 area codes, while 3 appear in just one.

Wireless and wireline

None of Oak Lake’s holders carries a mobility brand in its registered name: all 3 prefixes belong to wireline or wholesale carriers, among them MTS Inc, RFNow Inc and TELUS Integrated Communications. A call showing a Oak Lake number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Oak Lake’s dated assignments run from 2017 to 2022. 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.

Oak Lake’s oldest prefixes, the ones the register leaves undated, belong to MTS Inc: this carrier made up the landscape before competition arrived. The first dated assignment went to RFNow Inc. in 2017. The most recent arrivals are TELUS Integrated Communications (2022) and RFNow Inc. (2017), a sign that new carriers are still asking for numbers in Oak Lake.

Oak Lake 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 Oak Lake: the leader, MTS Inc., 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. Oak Lake is among the rate centres where demand for numbers is still rising quickly.

1 undated in the register.

Dialling a Oak Lake number

Oak Lake is served by 2 overlaid area codes (431 and 204). A 204 number is no more “out of town” than a 431 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Oak Lake shares area codes 431 and 204 with at least 20 other rate centres, including Winnipeg, Brandon, Portage La Prairie, Steinbach, Oakbank, Stonewall, Dauphin and Selkirk. The largest of them, Winnipeg, holds 387 prefixes in 204 and 431; the smallest on the list, The Pas, has just 10.

What a Oak Lake number tells you

A number attached to Oak Lake tells you that its prefix was issued to a carrier for this rate centre in Manitoba, most often MTS Inc.. 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 Manitoba area code is easy to borrow to look local.

Reading a register entry for Oak Lake: code 204-855 is recorded for MTS Inc., so every 204-855-XXXX number (10,000 possible) descends from that assignment. “Oak Lake, Manitoba” there names a rate centre, not a municipality, and several area codes overlay it.

Every Oak Lake prefix

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

Allocated prefixes

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

Elsewhere in Manitoba