PROSPERITY BANK - 3512 PRESTON ROAD* Share: Banks & Credit Unions Visit Website Request Info 3512 Preston Rd. Plano, TX 75093 (972) 461-1504 LegacyTexasBank.com Hours: Lobby Hours: Mon-Thur 9:00 am-4:00 pm, Fri 9:00 am-6:00 pm, Sat 9:00 am-1:00 pm Media Rep Info Map Media Whom to Contact Steve Young Executive Phone: (972) 461-4806 What's Nearby? Distance: 5 10 15 20 25 50 mi.