Star Trek Enterprise Pizza Cutter

According to The Star Trek Encyclopedia, the registry number "NCC-1701" was devised by Matt Jefferies, art director of the first Star Trek series, inspired by an old science fiction cover that Gene Roddenberry liked, with a starship flying through space. Jefferies, who was a pilot, based NCC on 20th century aircraft registration codes. In such 20th century usage, an "N" first letter refers to an aircraft registered in the USA. A "C" for a second letter refers to a civil aircraft. Jefferies added a second "C", just because he thought it looked better.
The Franz Joseph Blueprints, the book The Making of Star Trek and a handful of Star Trek novels state that NCC is an initialism for "Naval Construction Contract".
In Gene Roddenberry's original Star Trek pitch, the starship is described as a "United Space Ship," and in two episodes of the original series (TOS), Kirk refers to the "United Space Ship Enterprise".