Phone prefixes in Hudson

In numbers

In-service prefixes

11

Telephone numbers covered

110,000

Carriers

6

Area codes

4

Provinces and territories

2

First assignment

February 15, 2005

Most recent assignment

September 24, 2024

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.

• Quebec — 6 prefixes
• Ontario — 5 prefixes

Hudson’s share of its area codes

Within area code 807, Hudson accounts for only 5 of 293 prefixes (1.7%): the code is dominated by Thunder Bay and spread over 85 rate centres. Within area code 450, Hudson accounts for only 4 of 775 prefixes (0.5%): the code is dominated by Granby and spread over 129 rate centres. Within area code 354, Hudson accounts for only 1 of 56 prefixes (1.8%): the code is dominated by Valleyfield and spread over 49 rate centres. Within area code 579, Hudson accounts for only 1 of 644 prefixes (0.2%): the code is dominated by Granby and spread over 126 rate centres.

Who holds these numbers

Bell Canada holds the largest share at 3 prefixes, 27.3% of the total, ahead of 5 other carriers. Code by code: in 807, Iristel Inc. leads with 3 of 5 prefixes ahead of 1 others; in 450, Videotron Ltd. leads with 2 of 4 prefixes ahead of 2 others; IXICA Communications Inc. is the only holder in 354; Distributel is the only holder in 579. No carrier holds prefixes in every one of Hudson’s 4 area codes, while 5 appear in just one.

Wireless and wireline

None of Hudson’s holders carries a mobility brand in its registered name: all 11 prefixes belong to wireline or wholesale carriers, among them Bell Canada, Iristel Inc, Videotron Ltd and Distributel. A call showing a Hudson number therefore nominally comes from a landline, cable or VoIP platform rather than a locally assigned cellphone.

How the allocation was built up

Hudson’s dated assignments run from 2005 to 2024. The busiest period was 2005–2009, when 3 prefixes went to 2 carriers. 2 prefixes (18%) carry no date in the register: these are the historic pre-1999 assignments, the wireline bedrock of the rate centre. Since 2020 another 3 prefixes have been added, so the rate centre is still growing.

Hudson’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 Videotron Ltd. in 2005. The most recent arrivals are IXICA Communications Inc. (2022), Distributel (2018) and Bell Canada (2016), a sign that new carriers are still asking for numbers in Hudson.

Hudson has only 11 prefixes, or 110,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates Hudson: the leader, Bell Canada, holds only 27.3% 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.

Demand remains steady: 33.3% of the dated prefixes go back to the last ten years, the most active period being 2005–2009. The rate centre is growing at a regular rather than explosive pace.

2 undated in the register.

Dialling a Hudson number

Hudson is served by 4 overlaid area codes (807, 450, 354 and 579). A 579 number is no more “out of town” than a 807 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

Hudson shares area codes 807, 450, 354 and 579 with at least 20 other rate centres, including Thunder Bay, Granby, Joliette, St-Jerome, St-Hyacinthe, Longueuil, Ste-Therese and St-Lambert. The largest of them, Thunder Bay, holds 67 prefixes in 807; the smallest on the list, Chateauguay, has just 18.

What a Hudson number tells you

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

Reading a register entry for Hudson: code 807-582 is recorded for Bell Canada, so every 807-582-XXXX number (10,000 possible) descends from that assignment. “Hudson, Quebec” there names a rate centre, not a municipality, and several area codes overlay it.

Every Hudson prefix

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

Allocated prefixes

All 11 in-service prefixes, grouped by rate centre.

Elsewhere in Quebec