Area code 585

The border between 716 and 585 roughly matches county lines. Therefore, some ZIP codes have telephone numbers in two area codes. A significant part of Ontario County uses area codes 315 and 680. Part of the town of Farmington is north of the NY Thruway (Interstate 90), and is "joined" with Wayne County in the 315/680 area code.

As of October 2023, the area code is not expected to require relief until around 2029.

Service area

Counties

• Genesee
• Livingston
• Monroe
• Ontario
• Orleans
• Wyoming
• Allegany
• Wayne (Limited to very small areas of Macedon, Walworth, Ontario).
• Steuben (extreme northwest part of the county, Cohocton and Wayland as well as the respective towns surrounding these villages)

Major communities

• Albion
• Batavia
• Canandaigua
• Geneseo
• Medina
• Rochester
• Victor