Phone prefixes in Hawkesbury, ON

In numbers

In-service prefixes

12

Telephone numbers covered

120,000

Carriers

6

Area codes

2

Provinces and territories

1

First assignment

February 18, 2002

Most recent assignment

October 14, 2025

Hawkesbury’s share of its area codes

Within area code 343, Hawkesbury accounts for only 8 of 641 prefixes (1.2%): the code is dominated by Ottawa-Hull and spread over 116 rate centres. Within area code 613, Hawkesbury accounts for only 4 of 772 prefixes (0.5%): the code is dominated by Ottawa-Hull and spread over 132 rate centres.

Who holds these numbers

Iristel Inc. holds the largest share at 4 prefixes, 33.3% of the total, ahead of 5 other carriers. Code by code: in 343, Iristel Inc. leads with 4 of 8 prefixes ahead of 4 others; in 613, Bell Canada leads with 2 of 4 prefixes ahead of 1 others. 1 carrier holds prefixes in every one of Hawkesbury’s 2 area codes, while 5 appear in just one.

Wireless and wireline

2 of Hawkesbury’s 12 prefixes (16.7%) are held by carriers whose registered name marks a wireless business: TELUS Mobility. Wireline prefixes still outnumber them, carried by Iristel Inc, Bell Canada, Cogeco Connexion Inc and ISP Telecom 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

Hawkesbury’s dated assignments run from 2002 to 2025. The busiest period was 2025–2029, when 3 prefixes went to 2 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 5 prefixes have been added, so the rate centre is still growing.

Hawkesbury’s oldest prefixes, the ones the register leaves undated, belong to Bell Canada: this carrier made up the landscape before competition arrived. The first dated assignment went to TELUS Mobility in 2002. The most recent arrivals are Cogeco Connexion Inc. (2025), ISP Telecom Inc. (2022) and TELUS Integrated Communications (2017), a sign that new carriers are still asking for numbers in Hawkesbury.

Hawkesbury 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 Hawkesbury: the leader, Iristel Inc., holds only 33.3% of the prefixes against 5 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 2025–2029. Hawkesbury is among the rate centres where demand for numbers is still rising quickly.

2 undated in the register.

Dialling a Hawkesbury number

Hawkesbury is served by 2 overlaid area codes (343 and 613). A 613 number is no more “out of town” than a 343 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Hawkesbury shares area codes 343 and 613 with at least 20 other rate centres, including Ottawa-Hull, Kingston, Belleville, Cornwall, Kanata-Stittsville, Brockville, Smiths Falls and Bancroft. The largest of them, Ottawa-Hull, holds 425 prefixes in 343 and 613; the smallest on the list, Cumberland, has just 10.

What a Hawkesbury number tells you

A number attached to Hawkesbury tells you that its prefix was issued to a carrier for this rate centre in Ontario, 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 an Ontario area code is easy to borrow to look local.

Reading a register entry for Hawkesbury: code 343-500 is recorded for Iristel Inc., so every 343-500-XXXX number (10,000 possible) descends from that assignment. “Hawkesbury, Ontario” there names a rate centre, not a municipality, and several area codes overlay it.

Every Hawkesbury prefix

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

Had a call from a Hawkesbury 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.

   Report to the Canadian Anti-Fraud Centre ↗

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.

   National Do Not Call List ↗Who can still call you ↗

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.

   Get Cyber Safe: forwarding to 7726 ↗

Allocated prefixes

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

Elsewhere in Ontario