NPA-NXX - 581-840

This is the 581-840 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. 581
3. 581-840

The 581-840 subcode mainly covers Black Lake in Les Appalaches 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 Regular Landline registered to Telus. 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 43120 comments across our systems for the 581-840 subcode.