Operating number

"Who is this? What's your operating number?"

- Imperial officer

An operating number was the alphanumeric code by which personnel of the Galactic Empire, including stormtroopers and officers, were identified. The operating numbers of officers consisted of three letters followed by two numerals, such as LRC-01, while those of stormtroopers consisted of two letters followed by three or four numerals, as exemplified by LS-005, TK-626, MB-223, TK-421, and TK-5331.

Appearances

 * Star Wars: Episode IV A New Hope
 * Ezra's Gamble
 * Rise of the Rebels
 * Star Wars Rebels: Spark of Rebellion
 * The Rebellion Begins