was tracking a plane last nite called a swearingen, can’t remember the numbers after it but could not find it on airliner.net. Any help?

Swearingen has produced a number of aircraft, including the Merlin, Metroliner (a popular airliner in its day), and the SJ30 (mid-size bizjet).

edit: You were watching N9900, a Merlin. Airliners.net has quite a few Merlin pictures.

Try looking under Fairchild/Swearingen or just Fairchild. For a period Merlins and Metros were produced under the Fairchild name, although it was still the same factory in San Antonio.

The SJ30 is purely a ‘Swearingen’ though.