Phone prefixes in St. George

In numbers

In-service prefixes

16

Telephone numbers covered

160,000

Carriers

12

Area codes

5

Provinces and territories

2

First assignment

November 14, 2005

Most recent assignment

October 15, 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.

• New Brunswick — 10 prefixes
• Ontario — 6 prefixes

St. George’s share of its area codes

Within area code 506, St. George accounts for only 8 of 677 prefixes (1.2%): the code is dominated by Moncton and spread over 88 rate centres. Within area code 548, St. George accounts for only 3 of 499 prefixes (0.6%): the code is dominated by London and spread over 170 rate centres. Within area code 428, St. George accounts for only 2 of 21 prefixes (9.5%): the code is dominated by Bathurst and spread over 15 rate centres. Within area code 519, St. George accounts for only 2 of 779 prefixes (0.3%): the code is dominated by London and spread over 210 rate centres. Within area code 226, St. George accounts for only 1 of 778 prefixes (0.1%): the code is dominated by London and spread over 166 rate centres.

Who holds these numbers

Iristel Inc. holds the largest share at 3 prefixes, 18.8% of the total, ahead of 11 other carriers. Code by code: in 506, Aliant Telecom(NB) leads with 2 of 8 prefixes ahead of 6 others; in 548, Fibernetics Corporation leads with 1 of 3 prefixes ahead of 2 others; Iristel Inc. is the only holder in 428; in 519, Rogers Communications Canada Inc. (Cable) leads with 1 of 2 prefixes ahead of 1 others; Comwave Networks is the only holder in 226. No carrier holds prefixes in every one of St. George’s 5 area codes, while 10 appear in just one.

Wireless and wireline

3 of St. George’s 16 prefixes (18.8%) are held by carriers whose registered name marks a wireless business: Bell Mobility Aliant, Fido Solutions Inc and Rogers Communications Canada Inc. (Wireless). Wireline prefixes still outnumber them, carried by Iristel Inc, Aliant Telecom(NB), Rogers Communications Canada Inc. (Cable) and Bell Canada. 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

St. George’s dated assignments run from 2005 to 2025. The busiest period was 2020–2024, when 4 prefixes went to 4 carriers. 3 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 5 prefixes have been added, so the rate centre is still growing.

St. George’s oldest prefixes, the ones the register leaves undated, belong to Aliant Telecom(NB) and Bell Canada: these carriers made up the landscape before competition arrived. The first dated assignment went to Rogers Communications Canada Inc. (Cable) in 2005. The most recent arrivals are ISP Telecom Inc. (2023), Distributel (2022) and Fibernetics Corporation (2022), a sign that new carriers are still asking for numbers in St. George.

St. George has only 16 prefixes, or 160,000 numbers: a small rate centre, where the arrival of a single new carrier visibly changes the landscape.

No single carrier dominates St. George: the leader, Iristel Inc., holds only 18.8% 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: 38.5% of the dated prefixes go back to the last ten years, the most active period being 2020–2024. The rate centre is growing at a regular rather than explosive pace.

3 undated in the register.

Dialling a St. George number

St. George is served by 5 overlaid area codes (506, 548, 428, 519 and 226). A 226 number is no more “out of town” than a 506 one; from abroad, dial +1 and the full ten digits.

The numbering neighbourhood

St. George shares area codes 506, 548, 428, 519 and 226 with at least 20 other rate centres, including London, Kitchener-Waterloo, Windsor, Moncton, Saint John, Guelph, Brantford and Fredericton. The largest of them, London, holds 214 prefixes in 226, 519 and 548; the smallest on the list, Listowel, has just 23.

What a St. George number tells you

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

Reading a register entry for St. George: code 506-713 is recorded for Iristel Inc., so every 506-713-XXXX number (10,000 possible) descends from that assignment. “St. George, New Brunswick” there names a rate centre, not a municipality, and several area codes overlay it.

Every St. George prefix

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

Allocated prefixes

All 16 in-service prefixes, grouped by rate centre.

Elsewhere in New Brunswick