NPA-NXX - 450-543

This is the 450-543 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 450
3. 450-543

The 450-543 subcode mainly covers Sainte-therese in Thérèse-de Blainville county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Quebec state. Many of the numbers in this subcode are Cellular (Dedicated) registered to Telus Mobility. We hear they employ a large number of people in the Quebec office.
Recently there have been an increase in reported calls, we've had over 154144 comments across our systems for the 450-543 subcode.