Area code 579
Get a 579 phone number
To get a 579 phone number, pick an available 579 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Valleyfield, QC, Quebec
- Time zone
- Eastern (GMT -5)
- Related area codes
- Related:450
The 579 area code covers Valleyfield, QC and nearby Quebec communities.
About the 579 area code
Valleyfield, Quebec is the seat of area code 579, a Canadian code that also serves Longueuil, Laval, Terrebonne, and Brossard. Eastern time (GMT -5) holds across the territory.
The code launched in 2010 as an overlay on Quebec's 450 region and now forms a complex with area codes 450 and 354. Three codes over one footprint mean local dialing there always uses ten digits.
Dialing note: 579 is part of an overlay complex with 354, 450, so local calls in this area are dialed with all ten digits.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
579 phone number FAQ
- How do I get a 579 phone number?
- Pick an available 579 number and sign up for AvoCall. Your new Valleyfield, QC number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 579 area code?
- It serves Valleyfield, QC and nearby cities in Quebec, including Overlay for 450 area; includes Longueuil, Laval, Saint-Jean-sur-Richelieu.
- Can I receive verification codes on a 579 number?
- AvoCall 579 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.