CornerStone Telephone Company
2 Third Street
Suite 303
Troy, New York 12180
Phone: 518-272-1018
Fax: 518-272-1847
Toll-free: 1-866-240-1912
2 Third Street
Troy, New York
Serving the Capital District, Saratoga and the Adirondacks
444 Main St
Oneonta, NY 13820
Serving Central Leatherstocking Region
120 Genessee Ln
Amsterdam, NY 12010
Serving the Mohawk Valley
4709 Crossroads Park Dr
Liverpool, NY 13088
Serving Finger Lakes and Central New York
41 Page Park Drive
Poughkeepsie New York
Serving the Catskills and Hudson Valley
501 5th Avenue
New York, New York
Serving New York Metro area
