yes dba means doing business as, but why would ours be the only one that says that? wouldn't everyone else say DBA also?

like in the wikipedia page you sited..i changed the names to make it easier to understand.

DBA statements are often necessary with a franchise, where the franchisee may be something like The Doctors Associates, but business is done under the brand name the public would recognize, such as Subway. The legal name of the franchise may then be something like "The Doctors Associates, dba Subway Restaurants".

See what i am saying. The doctors associates is the main company, but they run and own the subway chain. So we are operating under the name delta because that is what people would recognize, but are we part of the company??? also noted is that on the side of our 900's there is no "Connection" or any other phrase like that.