locationsKey Communications is located on the border of Vermont and New Hampshire in White River Junction, VT. We service the greater Upper Valley region along the Connecticut River and all of Vermont and New Hampshire. Businesses and homes in Hanover, Lebanon, Enfield, Canaan, Sunapee, Mascoma, White River, Hartford, Hartland, Sharon, Claremont, Brattleboro and all surrounding towns count on Key Communications for all their communications needs.