Phone prefixes in Chesterville

In numbers

In-service prefixes

12

Telephone numbers covered

120,000

Carriers

12

Area codes

4

Provinces and territories

2

First assignment

June 26, 2007

Most recent assignment

August 25, 2025

Provinces and territories

This name is used for separate rate centres in 2 provinces. The prefixes below share a name in the CNAC register but belong to different communities.

• Ontario — 9 prefixes
• Quebec — 3 prefixes

Chesterville’s share of its area codes

Within area code 343, Chesterville accounts for only 5 of 641 prefixes (0.8%): the code is dominated by Ottawa-Hull and spread over 116 rate centres. Within area code 819, Chesterville accounts for only 3 of 770 prefixes (0.4%): the code is dominated by Ottawa-Hull and spread over 211 rate centres. Within area code 613, Chesterville accounts for only 2 of 772 prefixes (0.3%): the code is dominated by Ottawa-Hull and spread over 132 rate centres. Within area code 753, Chesterville accounts for only 2 of 103 prefixes (1.9%): the code is dominated by Ottawa-Hull and spread over 62 rate centres.

Who holds these numbers

Bell Canada holds the largest share at 1 prefixes, 8.3% of the total, ahead of 11 other carriers. Code by code: in 343, Cogeco Connexion Inc. leads with 1 of 5 prefixes ahead of 4 others; in 819, IVIC Telecom s.e.n.c leads with 1 of 3 prefixes ahead of 2 others; in 613, Bell Canada leads with 1 of 2 prefixes ahead of 1 others; in 753, ISP Telecom Inc. leads with 1 of 2 prefixes ahead of 1 others. No carrier holds prefixes in every one of Chesterville’s 4 area codes, while 12 appear in just one.

Wireless and wireline

None of Chesterville’s holders carries a mobility brand in its registered name: all 12 prefixes belong to wireline or wholesale carriers, among them Bell Canada, Bragg Communications Inc, Cogeco Connexion Inc and Distributel. A call showing a Chesterville number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Chesterville’s dated assignments run from 2007 to 2025. The busiest period was 2015–2019, when 3 prefixes went to 3 carriers. 2 prefixes (17%) 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.

Chesterville’s oldest prefixes, the ones the register leaves undated, belong to Bell Canada and Telebec Ltee: these carriers made up the landscape before competition arrived. The first dated assignment went to Videotron Ltd. in 2007. The most recent arrivals are Cogeco Connexion Inc. (2025), ISP Telecom Inc. (2023) and IXICA Communications Inc. (2022), a sign that new carriers are still asking for numbers in Chesterville.

Chesterville has only 12 prefixes, or 120,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates Chesterville: the leader, Bell Canada, holds only 8.3% of the prefixes against 11 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: 40.0% 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.

2 undated in the register.

Dialling a Chesterville number

Chesterville is served by 4 overlaid area codes (343, 819, 613 and 753). A 753 number is no more “out of town” than a 343 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Chesterville shares area codes 343, 819, 613 and 753 with at least 20 other rate centres, including Ottawa-Hull, Kingston, Sherbrooke, Belleville, Trois-Rivieres, Cornwall, Kanata-Stittsville and Brockville. The largest of them, Ottawa-Hull, holds 524 prefixes in 343, 613, 753 and 819; the smallest on the list, Shawinigan, has just 15.

What a Chesterville number tells you

A number attached to Chesterville tells you that its prefix was issued to a carrier for this rate centre in Ontario, most often Bell Canada. It does not tell you where the handset is today: a subscriber may have ported the number to any of the 12 carriers present here or to a VoIP service usable anywhere. Nor does it tell you who is calling: caller ID can be spoofed, and an Ontario area code is easy to borrow to look local.

Reading a register entry for Chesterville: code 613-448 is recorded for Bell Canada, so every 613-448-XXXX number (10,000 possible) descends from that assignment. “Chesterville, Ontario” there names a rate centre, not a municipality, and several area codes overlay it.

Every Chesterville prefix

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

Allocated prefixes

All 12 in-service prefixes, grouped by rate centre.

Elsewhere in Ontario