Phone prefixes in Williams Lake, BC

Williams Lake, BC is a rate centre in the Canadian numbering plan. CNAC records 21 in-service prefixes there, held by 11 carriers and spread across 4 area codes (250, 778, 236, 672). With 21 prefixes, Williams Lake is a small rate centre within British Columbia: 30th of 309, holding 0.6% of the province’s prefixes, and 188th of 2,920 rate centres across Canada.

Background reading: Canadian area codes, overlays, and what a 416 number actually tells you · Caller ID spoofing, STIR/SHAKEN, and how to actually block calls in Canada

Where Williams Lake is

Province or territory
British Columbia
Census division
Cariboo
Local time
— Pacific Time (PT), UTC−8; UTC−7 in daylight saving time
Nearest rate centres
150 Mile House (15 km), Riske Creek (31 km), McLeese Lake (34 km), Alkali Lake (38 km), Horsefly (54 km)

Divisions and places: Statistics Canada and NRCan. Straight-line distances.

In numbers

In-service prefixes
21
Telephone numbers covered
210,000
Carriers
11
Area codes
4
Provinces and territories
1
First assignment
October 30, 2001
Most recent assignment
June 9, 2026

Williams Lake’s share of its area codes

Within area code 250, Williams Lake accounts for only 7 of 781 prefixes (0.9%): the code is dominated by Victoria and spread over 268 rate centres. Within area code 778, Williams Lake accounts for only 7 of 779 prefixes (0.9%): the code is dominated by Vancouver and spread over 159 rate centres. Within area code 236, Williams Lake accounts for only 5 of 745 prefixes (0.7%): the code is dominated by Vancouver and spread over 269 rate centres. Within area code 672, Williams Lake accounts for only 2 of 321 prefixes (0.6%): the code is dominated by Vancouver and spread over 109 rate centres.

Area codesPrefixes herePrefixes in codeShareRangeLargest rate centre
25077810.9 %250-267 – 250-855Victoria
77877790.9 %778-267 – 778-961Vancouver
23657450.7 %236-300 – 236-802Vancouver
67223210.6 %672-802 – 672-803Vancouver

Who holds these numbers

TELUS holds the largest share at 6 prefixes, 28.6% of the total, ahead of 10 other carriers. Code by code: in 250, TELUS leads with 4 of 7 prefixes ahead of 3 others; in 778, Shaw Telecom Inc. leads with 2 of 7 prefixes ahead of 5 others; in 236, TELUS leads with 2 of 5 prefixes ahead of 2 others; Iristel Inc. is the only holder in 672. No carrier holds prefixes in every one of Williams Lake’s 4 area codes, while 8 appear in just one.

Carrier250778236672Total
TELUS4—2—6
Iristel Inc.——224
Shaw Telecom Inc.—2——2
TELUS Mobility11——2
Bell Mobility1———1
Bell West Inc.—1——1
Comwave Networks—1——1
Fibernetics Corporation——1—1
Fido Solutions Inc.—1——1
Navigata Communications Limited—1——1
Rogers Communications Canada Inc. (Wireless)1———1

Wireless and wireline

5 of Williams Lake’s 21 prefixes (23.8%) are held by carriers whose registered name marks a wireless business: TELUS Mobility, Bell Mobility, Fido Solutions Inc and Rogers Communications Canada Inc. (Wireless). Wireline prefixes still outnumber them, carried by TELUS, Iristel Inc, Shaw Telecom Inc and Bell West 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

Williams Lake’s dated assignments run from 2001 to 2026. The busiest period was 2010–2014, when 5 prefixes went to 5 carriers. 4 prefixes (19%) 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.

Williams Lake’s oldest prefixes, the ones the register leaves undated, belong to TELUS and Rogers Communications Canada Inc. (Wireless): these carriers made up the landscape before competition arrived. The first dated assignment went to TELUS Mobility in 2001. The most recent arrivals are Fibernetics Corporation (2026), Iristel Inc. (2016) and Comwave Networks (2015), a sign that new carriers are still asking for numbers in Williams Lake.

Williams Lake has only 21 prefixes, or 210,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates Williams Lake: the leader, TELUS, holds only 28.6% of the prefixes against 10 competitors, a sign of a highly fragmented market where cable companies, mobility brands and VoIP providers weigh as much as the incumbent.

Demand remains steady: 23.5% of the dated prefixes go back to the last ten years, the most active period being 2010–2014. The rate centre is growing at a regular rather than explosive pace.

PeriodPrefixesCarriers
2000–200422
2005–200933
2010–201455
2015–201932
2020–202432
2025–202911

4 undated in the register.

Dialling a Williams Lake number

Williams Lake is served by 4 overlaid area codes (250, 778, 236 and 672). A 672 number is no more “out of town” than a 250 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Williams Lake shares area codes 250, 778, 236 and 672 with at least 20 other rate centres, including Vancouver, Victoria, Kelowna, New Westminster, Abbotsford, Nanaimo, South Kamloops and Prince George. The largest of them, Vancouver, holds 397 prefixes in 236, 672 and 778; the smallest on the list, Campbell River, has just 22.

Rate centreProvinceShared codesPrefixesCarriers
VancouverBC236, 672, 77839719
VictoriaBC236, 250, 672, 77816916
KelownaBC236, 250, 672, 7787714
New WestminsterBC236, 672, 7786015
AbbotsfordBC236, 672, 7785714
NanaimoBC236, 250, 672, 7784814
South KamloopsBC236, 250, 672, 7784712
Prince GeorgeBC236, 250, 672, 7784411
CranbrookBC236, 250, 672, 7783712
VernonBC236, 250, 672, 7783611
AldergroveBC236, 672, 7783513
North VancouverBC236, 672, 7783111
PentictonBC236, 250, 7783112
RichmondBC236, 672, 7783015
Fort St. JohnBC236, 250, 672, 7782710
DuncanBC236, 250, 7782610
CourtenayBC236, 250, 672, 778248
NewtonBC236, 672, 7782413
ParksvilleBC236, 250, 672, 7782311
Campbell RiverBC236, 250, 7782211

What a Williams Lake number tells you

A number attached to Williams Lake tells you that its prefix was issued to a carrier for this rate centre in British Columbia, most often TELUS. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 11 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 British Columbia area code is easy to borrow to look local.

Reading a register entry for Williams Lake: code 250-302 is recorded for TELUS, so every 250-302-XXXX number (10,000 possible) descends from that assignment. “Williams Lake, British Columbia” there names a rate centre, not a municipality, and several area codes overlay it.

Every Williams Lake prefix

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

Had a call from a Williams Lake 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.

  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.

  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.

Frequently asked

What is the area code for Williams Lake?

Williams Lake does not have one area code but 4: 250, 778, 236 and 672. The best-stocked is 250. All are dialled with ten digits and none is “more local” than another.

Is a call from Williams Lake a cellphone or a landline?

More likely a landline or a VoIP service: mobility brands hold only 23.8% of Williams Lake’s prefixes.

Which carrier is behind a Williams Lake number?

In the register, TELUS holds the most prefixes in Williams Lake (6 of 21), ahead of 10 other carriers. Code 250-302, for instance, belongs to TELUS.

Is this Williams Lake number a scam?

The register cannot say: it records who a prefix was issued to, not who is calling. Search the full number above to see the reports filed against it.

What is the newest prefix in Williams Lake?

The latest code brought into service is 236-645, assigned to Fibernetics Corporation on June 9, 2026. At the other end, the oldest dated prefix, 250-267, goes to TELUS Mobility (October 30, 2001). A number in a recent prefix almost always belongs to a subscriber who signed up after that date.

What time zone is Williams Lake in?

Williams Lake is on Pacific Time (PT, UTC−8), with daylight saving time (UTC−7) from the second Sunday in March to the first Sunday in November.

Allocated prefixes

All 21 in-service prefixes, grouped by rate centre.

Williams Lake, BC

236-300 · 236-307 · 236-433 · 236-645 · 236-802 · 250-267 · 250-302 · 250-303 · 250-305 · 250-392 · 250-398 · 250-855 · 672-802 · 672-803 · 778-267 · 778-333 · 778-412 · 778-417 · 778-567 · 778-799 · 778-961

Elsewhere in British Columbia

Rate centreProvincePrefixesCarriers
ChilliwackBC4114
WhalleyBC3612
West VancouverBC319
WhistlerBC2812
Port CoquitlamBC2610
SquamishBC2412

Allocation source: Canadian Numbering Administrator (CNAC), the registry that records which carrier a central-office code was originally issued to. An allocation says who was issued the prefix, not who serves the number today: numbers can be ported between carriers, and caller ID can be spoofed outright.