What Airlines fly out of Concourse B in Atlanta?

What Airlines fly out of Concourse B in Atlanta
Hartsfield-Jackson Atlanta International Airport (ATL) is one of the busiest airports in the world, serving millions of passengers each year. Its expansive layout includes multiple concourses, each dedicated to a variety of airlines and destinations. Concourse B, located in the domestic terminal, is a key part of the airport’s infrastructure, handling a significant volume of domestic flights.

What Airlines fly out of Concourse B in Atlanta?