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area code

Biggest city:





Eastern (GMT -5)

Nearby area codes: 

Zip codes

J6S 1C6

J6S 1C8

Major Cities:

Overlay for 450 area; includes Longueuil, Laval, Saint-Jean-sur-Richelieu, Terrebonne, Brossard.


Average Income:





Unemployment Rate:

The 579 area code is a crucial component of the telecommunications infrastructure in Quebec, Canada, serving a significant part of the province and enhancing connectivity across its diverse communities. An Overlay Area Code for Southern Quebec: Introduced in 2010 as an overlay to the existing 450 area code, the 579 area code covers the same geographical region in southern Quebec. This includes suburban areas around Montreal and extends to more rural regions. The introduction of 579 was necessary to address the increasing demand for new phone numbers in this densely populated and economically vibrant area. Supporting a Diverse Population and Economy: The area served by the 450/579 area code combination is known for its mix of urban and rural settings, encompassing a variety of economic activities, from agriculture in the rural areas to business and industry in the suburbs. The region is also culturally diverse, reflecting Quebec's unique French-Canadian heritage combined with a growing multicultural population. Adapting to Technological Advancements and Population Growth: The implementation of the 579 area code as an overlay to 450 reflects Quebec's adaptation to rapid population growth, urban expansion, and the proliferation of digital devices and services. This strategy ensures a continuous supply of phone numbers for new residents and businesses while maintaining existing numbers, signifying the region's ongoing development and capacity to adapt to changing telecommunications needs. The 579 area code, along with 450, symbolizes southern Quebec's adaptability, diversity, and economic vitality, playing a critical role in connecting the area's unique blend of suburban and rural communities and supporting its complex and dynamic economy.
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