Phone prefixes in Langham, SK

In numbers

In-service prefixes

10

Telephone numbers covered

100,000

Carriers

6

Area codes

3

Provinces and territories

1

First assignment

February 8, 2016

Most recent assignment

October 20, 2025

Langham’s share of its area codes

Within area code 639, Langham accounts for only 8 of 776 prefixes (1.0%): the code is dominated by Regina and spread over 202 rate centres. Within area code 306, Langham accounts for only 1 of 777 prefixes (0.1%): the code is dominated by Saskatoon and spread over 228 rate centres. Within area code 474, Langham accounts for only 1 of 88 prefixes (1.1%): the code is dominated by Saskatoon and spread over 70 rate centres.

Who holds these numbers

Iristel Inc. holds the largest share at 4 prefixes, 40.0% of the total, ahead of 5 other carriers. Code by code: in 639, Iristel Inc. leads with 4 of 8 prefixes ahead of 3 others; SaskTel is the only holder in 306; ISP Telecom Inc. is the only holder in 474. No carrier holds prefixes in every one of Langham’s 3 area codes, while 6 appear in just one.

Wireless and wireline

None of Langham’s holders carries a mobility brand in its registered name: all 10 prefixes belong to wireline or wholesale carriers, among them Iristel Inc, Distributel, Access Communications Co-operative Limited and Fibernetics Corporation. A call showing a Langham number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Langham’s dated assignments run from 2016 to 2025. The busiest period was 2015–2019, when 5 prefixes went to 3 carriers. 1 prefixes (10%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 4 prefixes have been added, so the rate centre is still growing.

Langham’s oldest prefixes, the ones the register leaves undated, belong to SaskTel: this carrier made up the landscape before competition arrived. The first dated assignment went to Iristel Inc. in 2016. The most recent arrivals are ISP Telecom Inc. (2022), Fibernetics Corporation (2021) and Access Communications Co-operative Limited (2018), a sign that new carriers are still asking for numbers in Langham.

Langham has only 10 prefixes, or 100,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

Iristel Inc. leads with 40.0% of the prefixes, but 5 competitors have set up in Langham: a market where the incumbent keeps the edge without exclusivity.

Demand remains steady: 44.4% 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.

1 undated in the register.

Dialling a Langham number

Langham is served by 3 overlaid area codes (639, 306 and 474). A 474 number is no more “out of town” than a 639 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Langham shares area codes 639, 306 and 474 with at least 20 other rate centres, including Regina, Saskatoon, Moose Jaw, Prince Albert, North Battleford, Yorkton, Swift Current and Moosomin. The largest of them, Regina, holds 161 prefixes in 306, 474 and 639; the smallest on the list, Watrous, has just 14.

What a Langham number tells you

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

Reading a register entry for Langham: code 639-387 is recorded for Iristel Inc., so every 639-387-XXXX number (10,000 possible) descends from that assignment. “Langham, Saskatchewan” there names a rate centre, not a municipality, and several area codes overlay it.

Every Langham prefix

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

Allocated prefixes

All 10 in-service prefixes, grouped by rate centre.

Elsewhere in Saskatchewan