CRYPTOLOGIC TECHNICIAN (NETWORKS) (CTN)
The U.S. Navy cryptologic and information warfare cryptologic technician (networks) rating — CTN.

OVERVIEW
Cryptologic Technician (Networks) — CTN — is the U.S. Navy's cyber-warfare operator rating. CTNs conduct defensive and offensive cyberspace operations from U.S. Cyber Command's Cyber Mission Force teams and Navy Cyber Defense Operations Command. CTN is the Navy's primary enlisted contribution to USCYBERCOM.
The cryptologic / information warfare community conducts signals intelligence, cyberspace operations, and electronic warfare for U.S. Cyber Command, the National Security Agency, and Fleet Cyber Command / Tenth Fleet. All cryptologic ratings require a TS/SCI clearance, polygraph eligibility, and intensive language, technical, or analytic training at the Center for Information Warfare Training (CIWT).
A-school for the rating runs ~26 weeks at Center for Information Warfare Training, Corry Station, Pensacola FL, where Sailors complete the technical foundation needed to report to their first fleet command. Entry requires the ASVAB line score AR+MK+EI+GS=222 (TS/SCI required) and an enlistment obligation of 6–6 years. CTNs advance through the standard enlisted paygrade structure (E-1 through E-9), competing in the Navy-Wide Advancement Examination (NWAE) at E-4 through E-6 and via the Selection Board at E-7 through E-9. Senior CTNs typically serve as Leading Petty Officer (LPO), Work Center Supervisor, Leading Chief Petty Officer (LCPO), or Command Master Chief (CMC), and may pursue Limited Duty Officer (LDO), Chief Warrant Officer (CWO), or commissioning programs such as STA-21, MECP, or OCS.
Across the active force, CTN Sailors are essential to the Navy's mission readiness, and the rating remains an in-demand career field with strong reenlistment bonuses (SRB), advancement opportunities, and pathways into Navy Reserve, civilian DoD, and industry careers after service.
WHAT CTNs DO
CTNs conduct computer network operations — defensive cyberspace operations (DCO), offensive cyberspace operations (OCO), and DoD Information Network operations (DODIN) — and support intelligence-driven cyber missions in joint Cyber Mission Force teams.
RESPONSIBILITIES
- CTNs conduct computer network operations — defensive cyberspace operations (DCO), offensive cyberspace operations (OCO), and DoD Information Network operations (DODIN) — and support intelligence-driven cyber missions in joint Cyber Mission Force teams.
- Stand watches and qualify on the rating's Personnel Qualification Standards (PQS), maintain training jackets, and mentor junior CTNs as required by the chain of command.
- Lead the CTN work center as Leading Petty Officer or Work Center Supervisor — managing maintenance documentation in 3M/MFOM, parts ordering, and personnel qualifications.
- Support general military training (GMT), damage control, force protection, and watch-bill assignments common to every Sailor regardless of rating.
HISTORY
CTN was established in 2004 as the U.S. Navy formalized cyberspace as an operational domain. The rating sources Navy enlisted personnel into U.S. Cyber Command's Cyber Mission Force.
The cryptologic community traces to OP-20-G — the Navy's World War II signals-intelligence organization that broke the Japanese JN-25 code and contributed to the victory at Midway. Post-war the community evolved through the Communications Technician (CT) ratings, was reorganized in 1976, and again restructured in 2008 into the modern CTI/CTM/CTN/CTR/CTT specialties under the Information Warfare community.
Today the Cryptologic Technician (Networks) (CTN) rating is overseen by the Enlisted Community Management (ECM) office at My Navy HR and the Center for Personal and Professional Development. Modern CTNs benefit from the Sailor 2025 personnel-system reforms, the Ready Relevant Learning (RRL) training continuum, and credentialing through the Navy COOL program — turning rating qualifications into industry-recognized certifications and licenses.
The rating's structure, training pipeline, and operational employment continue to evolve alongside the Navy's transition to Distributed Maritime Operations (DMO), Project Overmatch, and the Force Design 2045 fleet architecture, ensuring CTNs remain central to the warfighting mission.
TRAINING PIPELINE
- 1. Recruit Training (Boot Camp)~10 weeksNaval Station Great Lakes, ILInitial entry training for all U.S. Navy enlisted Sailors at the Navy's only boot camp.
- 2. Cryptologic Technician (Networks) A-School~26 weeksCenter for Information Warfare Training, Corry Station, Pensacola FLInitial cryptologic rating training for accessions (TS/SCI required)
- 3. Fleet / Operational TourFirst sea or operational tourU.S. Cyber Command Cyber Mission Force teamsOn-the-job training and qualifications in the CTN rating with a fleet unit.
TYPICAL CAREER PATH
- E-1/E-3Apprentice CTNA-school in the cryptologic pipeline; first tour with a fleet unit.
- E-4/E-6Petty Officer CTNLead a Cryptologic Technician (Networks) work-center, qualify in core watchstations and platform-specific tasks.
- E-7+Chief Cryptologic Technician (Networks)Senior enlisted leader of the rating in the command; instructor, detailer, or department leading chief assignments.
TYPICAL PLATFORMS & UNITS
- U.S. Cyber Command Cyber Mission Force teams
- Navy Cyber Defense Operations Command, Suffolk VA
- Fleet Cyber Command / Tenth Fleet
EXAMPLE NECs
- CTN-9305 Cyberspace Operations Technician
- U.S. citizenship and minimum ASVAB AR+MK+EI+GS=222 (TS/SCI required)
- High school diploma or equivalent
- Pass the Navy physical and medical screening
- Eligible for TS/SCI with CI poly security clearance
- U.S. Cyber Command Cyber Mission Force teams
- Navy Cyber Defense Operations Command, Suffolk VA
- Fleet Cyber Command / Tenth Fleet
RELATED RATINGS
RELATED BASES
FREQUENTLY ASKED QUESTIONS
SOURCES
- Navy Cryptologic Technician (Networks) (navy.com)
- My Navy HR — Enlisted Community Management
- Navy COOL — Rating Detail