Air Force · AFSC history

1D751D Cyber Defense Operation Journeyman, Security Operations

The instructions directed all 1D751D Security Operations journeymen to convert indirectly to 1D751Q, Enterprise Operations. Personnel who should instead be designated 1D751M, Mission Defense Activities, or 1D751W, Expeditionary Communications, required manual updates.

Search legacy codes Browse Air Force specialties

Codes named in this history

Historical steps

The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.

1D751QCyber Systems Operations, Helper, Enterprise Operations · historical code
Recorded successor: 1D7X1 Information Technology Systems, also listed in today's directory (source-stated codes: 1D711, 1D731, 1D751, 1D771)
Recorded successor: 1D7X3 Cable and Antenna, also listed in today's directory (source-stated codes: 1D713, 1D733, 1D753, 1D773)
Recorded successor: 1D7X5 Cybersecurity, also listed in today's directory (source-stated codes: 1D715, 1D735, 1D755, 1D775)
Further history: 1D711A Cyber Systems Operations, Network Operations Specialist. Archive availability does not establish retirement or current use.
Further history: 1D711B Cyber Systems Operations, System Administration Specialist. Archive availability does not establish retirement or current use.
Further history: 1D712F Cyber and Electromagnetic Activities (CEMA), Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D731A Cyber Systems Operations, Network Operations Specialist. Archive availability does not establish retirement or current use.
Further history: 1D731B Cyber Systems Operations, System Administration Specialist. Archive availability does not establish retirement or current use.
Further history: 1D732F Cyber and Electromagnetic Activities (CEMA), Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D751A Cyber Defense Operation Journeyman, Network Operations. Archive availability does not establish retirement or current use.
Further history: 1D751B Cyber Defense Operation Journeyman, Systems Operations. Archive availability does not establish retirement or current use.
Further history: 1D752F Spectrum Defense Operations Journeyman, Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D771A Cyber Defense Operation Craftsman, Network Operations. Archive availability does not establish retirement or current use.
Further history: 1D771B Cyber Defense Operation Craftsman, Systems Operations. Archive availability does not establish retirement or current use.
Further history: 1D772F Spectrum Defense Operations Craftsman, Spectrum Operations. Archive availability does not establish retirement or current use.
Listed as becoming 1D712R. No directory or archive record matches.
Listed as becoming 1D732R. No directory or archive record matches.
Listed as becoming 1D752R. No directory or archive record matches.
Listed as becoming 1D772R. No directory or archive record matches.
1D751MCyber Systems Operations, Helper, Cyber security · historical code
Recorded successor: 1D7X5 Cybersecurity, also listed in today's directory (source-stated codes: 1D715, 1D735, 1D755, 1D775)
1D751WInformation Technology Systems Helper, Expeditionary Communications · historical code
Recorded successor: 1D7X1 Information Technology Systems, also listed in today's directory (source-stated codes: 1D711, 1D731, 1D751, 1D771)
Recorded successor: 1D7X3 Cable and Antenna, also listed in today's directory (source-stated codes: 1D713, 1D733, 1D753, 1D773)
Recorded successor: 1D7X5 Cybersecurity, also listed in today's directory (source-stated codes: 1D715, 1D735, 1D755, 1D775)
Further history: 1D711A Cyber Systems Operations, Network Operations Specialist. Archive availability does not establish retirement or current use.
Further history: 1D711B Cyber Systems Operations, System Administration Specialist. Archive availability does not establish retirement or current use.
Further history: 1D712F Cyber and Electromagnetic Activities (CEMA), Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D731A Cyber Systems Operations, Network Operations Specialist. Archive availability does not establish retirement or current use.
Further history: 1D731B Cyber Systems Operations, System Administration Specialist. Archive availability does not establish retirement or current use.
Further history: 1D732F Cyber and Electromagnetic Activities (CEMA), Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D751A Cyber Defense Operation Journeyman, Network Operations. Archive availability does not establish retirement or current use.
Further history: 1D751B Cyber Defense Operation Journeyman, Systems Operations. Archive availability does not establish retirement or current use.
Further history: 1D752F Spectrum Defense Operations Journeyman, Spectrum Operations. Archive availability does not establish retirement or current use.
Further history: 1D771A Cyber Defense Operation Craftsman, Network Operations. Archive availability does not establish retirement or current use.
Further history: 1D771B Cyber Defense Operation Craftsman, Systems Operations. Archive availability does not establish retirement or current use.
Further history: 1D772F Spectrum Defense Operations Craftsman, Spectrum Operations. Archive availability does not establish retirement or current use.
Listed as becoming 1D712R. No directory or archive record matches.
Listed as becoming 1D732R. No directory or archive record matches.
Listed as becoming 1D752R. No directory or archive record matches.
Listed as becoming 1D772R. No directory or archive record matches.

Documented history

Cyber Defense Operation Journeyman, Security Operations

The guide sets 30 April 2023 as the scheduled implementation date; no separate completion deadline is stated for this conversion.

The instructions do not explain how personnel were selected for 1D751M or 1D751W.

Source extraction notes

CS&CIG source assertion (Indirect): 1. All 1D751D personnel will indirectly convert to 1D751Q. Personnel that should be designated to 1D751M and 1D751W will be manually updated. Conversion instructions: MPS: 8. AFPC: 8. Manpower: 8. Ordered successor options preserve the source table order.

Source documents (2)

Reviewed September 23, 2026 against references 2 and 3.

Air Force Enlisted Classification Directory (AFECD), 30 April 2023
1. embedded Attachment 1 CS&CIG page 9 · source dated April 30, 2023
Attachment 1, PDF page 9 (opens in a new tab) Original publication (opens in a new tab)
4.Air Force Enlisted Classification Directory (AFECD), 30 April 2023 · event transcription · docs/legacy-data/usaf-afecd-modernization.jsonl:54; embedded Attachment 1 CS&CIG page 9
Attachment 1, PDF page 9 (opens in a new tab) Original publication (opens in a new tab)
Air Force Enlisted Classification Directory (AFECD), 30 April 2023, embedded Attachment 1 Change Summary and Conversion Instructions Guide
2. embedded Attachment 1 CS&CIG page 9 (table row with Current AFSC 1D751D) · cited by the explanation
Attachment 1, PDF page 9 (opens in a new tab) Original publication (opens in a new tab)
3.AFECD 30 April 2023, main guide Summary of Revisions and CS&CIG title banner · main PDF page 2 (SUMMARY OF REVISIONS); embedded Attachment 1 CS&CIG page 1 title banner · cited by the explanation
Attachment 1, PDF page 1 (opens in a new tab)PDF page 2 (opens in a new tab) Original publication (opens in a new tab)

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.