Service number

A Service Number is a numerical designation given to each member of the UNSC military as a means of identification. Service numbers usually follow a ten-digit format followed by two letters that are sometimes the first and last initials of a person. There appear to be different schemes for different people, so it is possible that there is a different service number format for UNSC Officers, enlisted men, and warrant officers.

Note that the service numbers of members of ONI and the Spartans are classified for security purposes.

Known Service Numbers

 * Admiral Roland Freemont: 00745-16778-HS
 * Admiral Micheal Stanforth: 00834-19223-HS
 * Captain Jacob Keyes: 01928-19912-JK
 * Sergeant Major AJ Johnson: 48789-2094-AJ
 * Tech Officer Third Class Sam Marcus: 18827-318209-M