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  2. Service number (United States Armed Forces) - Wikipedia

    en.wikipedia.org/wiki/Service_number_(United...

    Service number prefix and suffix codes were one and two letter designators written before or after a service number; a service member could only have one code at any given time. The purpose of these codes was to provide additional information regarding a military service member with the very first prefix codes created by the Army in 1920 and ...

  3. Service number (United States Army) - Wikipedia

    en.wikipedia.org/wiki/Service_number_(United...

    A military service number of the Regular Army. Service numbers were used by the United States Army from 1918 until 1969. Prior to this time, the Army relied on muster rolls as a means of indexing enlisted service members while officers were usually listed on yearly rolls maintained by the United States War Department.

  4. Service number - Wikipedia

    en.wikipedia.org/wiki/Service_number

    A service number or roll number is an identification code used to identify a person within a large group. Service numbers are most often associated with the military; however, they also may be used in civilian organizations. National identification numbers may be seen as types of service numbers. The term "serial number" is often seen as a ...

  5. Service number (United States Navy) - Wikipedia

    en.wikipedia.org/wiki/Service_number_(United...

    The B service number series was issued from 1965 to 1971. In 1969, the Navy further activated a "D series" which reset service numbers to 10,001 to 99,999 (there was never a "C series" created). In 1972, Navy service numbers were discontinued upon the Navy formally abolishing the use of military service numbers in favor of Social Security numbers.

  6. Service number (United States Marine Corps) - Wikipedia

    en.wikipedia.org/wiki/Service_number_(United...

    Marine enlisted service number 1,000,000 was issued in 1944 and the cap of 1,700,000 was reached nine years later. Service numbers 1,700,000 to 1,799,999 were set aside for female enlisted personnel of the 1960s and 1970s while 1,800,000 to 2,000,000 was used by male enlistees. In 1965, with male service numbers running out due to a rise of ...

  7. Service number (United States Coast Guard) - Wikipedia

    en.wikipedia.org/wiki/Service_number_(United...

    Coast Guard enlisted service numbers were completely discontinued in 1974 with the Coast Guard being the last of the military service branches to convert to Social Security numbers as the primary identification means for military personnel. The Coast Guard was also the only branch of the military to never use any form of a service number prefix ...

  8. Joint Electronics Type Designation System - Wikipedia

    en.wikipedia.org/wiki/Joint_Electronics_Type...

    The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army-Navy Nomenclature System (AN System. JAN) and the Joint Communications-Electronics Nomenclature System, is a method developed by the U.S. War Department during World War II for assigning an unclassified designator to electronic equipment.

  9. Army Nomenclature System - Wikipedia

    en.wikipedia.org/wiki/Army_Nomenclature_System

    Army Nomenclature System. The Army Nomenclature System is a nomenclature system used by the US Army for giving type designations to its materiel. It is based on MIL-STD-1464A which was released in 1981 [1] and most recently revised on February 22, 2021. [2]