| Abbreviation | Definition |
|---|---|
| CTTCM | Communications Technician (technical Branch) Master Chief Petty Officer |
| CTTCM | Cryptologic (technical Branch) Master Chief Petty Officer |
| CTTCM | mmunications Technician (technical Branch) Master Chief Petty Officer |
| CTTCM | yptologic (technical Branch) Master Chief Petty Officer |
| CTTCS | Communications Technician (technical Branch) Senior Chief Petty Officer |
| CTTCS | Cryptologic (technical Branch) Senior Chief Petty Officer |
| CTTCS | mmunications Technician (technical Branch) Senior Chief Petty Officer |
| CTTCS | yptologic (technical Branch) Senior Chief Petty Officer |
| CTTSA | Communications Technician (technical Branch) Seaman Apprentice |
| CTTSA | Cryptologic (technical Branch) Seaman Apprentice |
| CTTSA | mmunications Technician (technical Branch) Seaman Apprentice |
| CTTSA | yptologic (technical Branch) Seaman Apprentice |
| CTTSN | Communications Technician (technical Branch) Seaman |
| CTTSN | Cryptologic (technical Branch) Seaman |
| CTTSN | mmunications Technician (technical Branch) Seaman |
| CTTSN | yptologic (technical Branch) Seaman |
| CTTSR | Communications Technician (technical Branch) Seaman Recruit |
| CTTSR | Cryptologic (technical Branch) Seaman Recruit |
| CTTSR | mmunications Technician (technical Branch) Seaman Recruit |
| CTTSR | yptologic (technical Branch) Seaman Recruit |