| Abbreviation | Definition |
|---|---|
| AEH | Automated Ethical Hack |
| AEIT | Aggregate Event Information Table |
| AEQ | Auto Enter Queue |
| AES | Advanced Encryption Standard |
| AFD | Automatic File Distribution |
| AFDP | Application File Distribution Protocol |
| AFN | Amazon Fulfilled Network |
| AFP | Apple File Protocol |
| AFP | Apple Filing Protocol |
| AFPS | Advanced File and Print Server |
| AFTN | Aeronautical Fixed Telecommunications Network |
| AGI | Address Generation Interlock |
| AGI | Asterisk Gateway Interface |
| AGMARK | Agricultural Marketing Information System Network |
| AGS | Application Gateway Service |
| AGTP | Access Grid Training Project |
| AGU | Address Generation Unit |
| AH | Authentication Header |
| AI | Active Interface |
| AIAD | App In A Day |