The changeover will hit North Carolina branches in October.
The changes affect 868 branches, nearly 1,500 ATMs, and more than 47,000 employees.
Wells Fargo is second in deposits in North Carolina, with 21 percent of the market.
Wells Fargo agreed to buy Wachovia at the peak of the financial crisis in the fall of 2008.
Branches in the West, Northeast and parts of the Southeast have already changed; Florida switches in June and July.