Ledyard National Bank Banks & Credit Unions Ledyard National Bank Visit Website 320 Main St. Norwich, VT 05055 (802) 649-2050 1-888-594-5835 (802) 649-2060 (fax) About About The Upper Valley/Lake Sunapee region's leading financial services organization with 7 full service community offices;premier investment,tax and wealth management division,Ledyard Financial Advisors.