Area code 579 was first put in service August 21, 2010. Currently, the largest city it serves is Granby, QC, and it overlaps coverage areas with area code 450.
Bedford, Beloeil, Berthierville, Boucherville, Chambly, Chateauguay, Chomedey, Crabtree, Dunham, Eastman, Granby, Joliette, Knowlton, L'Epiphanie-l'Assomption, Lacolle, Lanoraie, Laprairie, Laval-Est, Laval-Ouest, Lavaltrie, Le Gardeur, Longueuil, Mansonville, Marieville, Mascouche, Mirabel-Aeroport, Mirabel-St-Augustin, Mirabel-Ste-Scholastique, Napierville, Oka, Pont-Viau, Rawdon, Rigaud, Roxton Falls, Saint-Liboire, Sorel, St-Blaise, St-Bruno, St-Cesaire, St-Eustache, St-Hyacinthe, St-Jean, St-Jerome, St-Lambert, St-Vincent-de-Paul, Ste-Anne-des-Plaines, Ste-Rosalie, Ste-Rose, Ste-Sabine, Ste-Therese, Sutton, Terrebonne, Valcourt, Valleyfield, Vaudreuil, Waterloo.
| PREFIX | COUNTY | CITY | CARRIER | TYPE |
|---|---|---|---|---|
| 579-435 | Saint Constant | |||
| 579-436 | Brome-Missisquoi | Sutton | ||
| 579-437 | Eastman | |||
| 579-438 | Brome-Missisquoi | Knowlton | ||
| 579-439 | Waterloo | |||
| 579-440 | Frelighsburg | |||
| 579-452 | Saint Rosalie | |||
| 579-477 | Th�r�se-De Blainville | Sainte-Therese | ||
| 579-478 | Mirabel Aeroport | |||
| 579-479 | Th�r�se-De Blainville | Sainte-Anne-des-Plaines | ||
| 579-488 | Granby | |||
| 579-489 | Les Maskoutains | Saint-Hyacinthe | ||
| 579-490 | Vaudreuil | |||
| 579-491 | Beauharnois-Salaberry | Salaberry-de-Valleyfield | ||
| 579-500 | Joliette | |||
| 579-509 | Saint Hyacinthe | |||
| 579-530 | Franklin Centre | |||
| 579-578 | Laval | Saint-Vincent-de-Paul | ||
| 579-589 | Granby | |||
| 579-595 | Granby | |||
| 579-600 | La Vall�e-du-Richelieu | Beloeil | ||
| 579-630 | Saint Therese | |||
| 579-679 | Laval | Chomedey | ||
| 579-700 | Saint Jean | |||
| 579-720 | Longueuil | Saint-Lambert | ||
| 579-721 | Longueuil | |||
| 579-722 | Henryville | |||
| 579-737 | Rouville | Saint-Cesaire | ||
| 579-738 | Dunham | |||
| 579-739 | Memphr�magog | Eastman | ||
| 579-740 | Joliette | |||
| 579-764 | Saint Therese | |||
| 579-765 | La Rivi�re-du-Nord | Saint-Jerome | ||
| 579-779 | Pont Viau | |||
| 579-786 | Brome-Missisquoi | Knowlton | ||
| 579-787 | Granby | |||
| 579-788 | Memphr�magog | Mansonville | ||
| 579-789 | Sutton | |||
| 579-790 | Valleyfield | |||
| 579-795 | Lepiplassm | |||
| 579-797 | La Haute-Yamaska | Waterloo | ||
| 579-799 | Longueuil | |||
| 579-800 | Roussillon | La Prairie | ||
| 579-808 | Terrebonne | |||
| 579-809 | Saint Bruno | |||
| 579-818 | Deux-Montagnes | Saint-Eustache | ||
| 579-828 | Oka | |||
| 579-838 | Mirabel | Mirabel:Sainte-Scholastique | ||
| 579-858 | Mirabel St Augustin | |||
| 579-859 | Rouville | Marieville | ||
| 579-860 | Chateauguay | |||
| 579-862 | Saint Eustache | |||
| 579-863 | Terrebonne | |||
| 579-864 | Rawdon | |||
| 579-865 | Lanoraie | |||
| 579-869 | Laprairie | |||
| 579-880 | Longueuil | Saint-Lambert | ||
| 579-881 | Longueuil | |||
| 579-882 | Longueuil | Boucherville | ||
| 579-883 | Beloeil | |||
| 579-884 | Longueuil | Saint-Bruno-de-Montarville | ||
| 579-885 | Chambly | |||
| 579-886 | Roussillon | La Prairie | ||
| 579-888 | Saint Jerome | |||
| 579-900 | Longueuil | Boucherville | ||
| 579-914 | Terrebonne | |||
| 579-919 | Laval | Pont-Viau | ||
| 579-929 | Chomedey | |||
| 579-934 | Chomedey | |||
| 579-939 | Laval | Laval-Est |
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