Phone prefixes in Rosedale, BC

In numbers

In-service prefixes

5

Telephone numbers covered

50,000

Carriers

5

Area codes

2

Provinces and territories

1

First assignment

November 22, 2007

Most recent assignment

July 7, 2022

Rosedale’s share of its area codes

Within area code 236, Rosedale accounts for only 3 of 730 prefixes (0.4%): the code is dominated by Vancouver and spread over 269 rate centres. Within area code 604, Rosedale accounts for only 2 of 781 prefixes (0.3%): the code is dominated by Vancouver and spread over 44 rate centres.

Who holds these numbers

Distributel holds the largest share at 1 prefixes, 20.0% of the total, ahead of 4 other carriers. Code by code: in 236, Distributel leads with 1 of 3 prefixes ahead of 2 others; in 604, Shaw Telecom Inc. leads with 1 of 2 prefixes ahead of 1 others. No carrier holds prefixes in every one of Rosedale’s 2 area codes, while 5 appear in just one.

Wireless and wireline

None of Rosedale’s holders carries a mobility brand in its registered name: all 5 prefixes belong to wireline or wholesale carriers, among them Distributel, Fibernetics Corporation, ISP Telecom Inc and Shaw Telecom Inc. A call showing a Rosedale number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Rosedale’s dated assignments run from 2007 to 2022. The busiest period was 2020–2024, when 2 prefixes went to 2 carriers. 1 prefixes (20%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 2 prefixes have been added, so the rate centre is still growing.

Rosedale’s oldest prefixes, the ones the register leaves undated, belong to TELUS: this carrier made up the landscape before competition arrived. The first dated assignment went to Shaw Telecom Inc. in 2007. The most recent arrivals are Fibernetics Corporation (2022), ISP Telecom Inc. (2022) and Distributel (2016), a sign that new carriers are still asking for numbers in Rosedale.

Rosedale has just 5 prefixes (50,000 numbers): a very small rate centre, typical of a village or rural area served by a single switching office.

No single carrier dominates Rosedale: the leader, Distributel, holds only 20.0% of the prefixes against 4 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 2020–2024. Rosedale is among the rate centres where demand for numbers is still rising quickly.

1 undated in the register.

Dialling a Rosedale number

Rosedale is served by 2 overlaid area codes (236 and 604). A 604 number is no more “out of town” than a 236 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Rosedale shares area codes 236 and 604 with at least 20 other rate centres, including Vancouver, New Westminster, Richmond, Abbotsford, North Vancouver, Chilliwack, Aldergrove and Newton. The largest of them, Vancouver, holds 485 prefixes in 236 and 604; the smallest on the list, White Rock, has just 13.

What a Rosedale number tells you

A number attached to Rosedale tells you that its prefix was issued to a carrier for this rate centre in British Columbia, most often Distributel. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 5 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 Rosedale: code 236-438 is recorded for Distributel, so every 236-438-XXXX number (10,000 possible) descends from that assignment. “Rosedale, British Columbia” there names a rate centre, not a municipality, and several area codes overlay it.

Every Rosedale prefix

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

Allocated prefixes

All 5 in-service prefixes, grouped by rate centre.

Elsewhere in British Columbia