One Commerce Square

One Commerce Square
Former namesNational Bank of Commerce Building, Sun Trust Bank Building
Alternative namesiBank Building
General information
Architectural styleModern
Address40 South Main Street
Town or cityMemphis, Tennessee
Coordinates35°08′38″N 90°03′10″W / 35.143823°N 90.052885°W / 35.143823; -90.052885
Completed1972
OwnerMemphis Commerce Square Partners
Height396.0 feet (120.7 m)
Technical details
Floor count30
Floor area503,999 sq ft (46,823.0 m2)
Design and construction
Architecture firmRoy P. Harrover & Associates
Other information
Public transit access MATA
 Main Street Line 
Website
http://www.onecommercesquare.com

One Commerce Square is a 30-story skyscraper in Downtown Memphis which is locally referred to as the "iBank Tower". The building was formerly known as the NBC Building and the SunTrust Building, and is the fourth tallest building in Memphis, Tennessee. The building is located at the corner of Monroe Avenue and South Main Street.