It's all about connections for Atlantic Southeast Airlines (ASA). Operating as a Delta Connection regional carrier, ASA flies to smaller markets on behalf of Delta Air Lines, primarily from Delta's hubs in Atlanta and Cincinnati. The carrier serves about 110 destinations, mainly east of the Mississippi in the US, but also in western states and in Canada, Mexico, and the Caribbean. ASA maintains a fleet of about 160 aircraft, all of which are Canadair regional jets (CRJs), made by Bombardier. Founded in 1979, ASA is a subsidiary of SkyWest, which bought the company from Delta in 2005. In late 2010 SkyWest boosted its capacity by acquiring rival ExpressJet via ASA, establishing ExpressJet as a subsidiary of ASA.