Area codes 315 and 680

The service area extends from the western side of Wayne County to Little Falls, north to the Canada–United States border, east to Massena and south to near Cortland.

New York State regulators announced that 315 was threatened by numbering exhaustion for the third quarter of 2010.

On March 11, 2017, area code 680 was introduced, creating the first overlay in the upstate region.

Attempts to make a seven-digit call with these services activates an intercept message reminding them of the new rule.

[3][4] On March 15, 2022, a proclamation by Syracuse Mayor Ben Walsh and Onondaga County Executive Ryan McMahon declared recognition of '315 day'.