Area Code Lookup
What Area Code Is Longueuil?
2 area codes serve Longueuil · Quebec
Longueuil is served by area codes 450, 579. It is located in Quebec.
Area Codes Serving Longueuil
Frequently Asked Questions
What area code is Longueuil?
Longueuil is served by area codes 450, 579. It is located in Quebec.
Why does Longueuil have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Longueuil now has 2 area codes — 450 and 579 — covering the same or overlapping areas.
How do I call Longueuil from outside the US?
To call Longueuil from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-450-XXX-XXXX). The +1 is the country code for all NANPA countries.