About 581:
Area code 581 was first put in service September 19, 2008. To avoid exhausting all possible phone numbers in this area code, relief planning has begun, but it has been . Currently, the largest city it serves is Quebec, QC, and it overlaps coverage areas with area codes 367 and 418.
Related Cities:
Area codes 418 and 581 cover much of eastern Quebec including the larger communities of Quebec City, Côte-Nord, Chibougamau, Gaspé Peninsula, and Saguenay.