| AAN | Air Ambulance Network |
|---|---|
| AAN | Application-Aware Network |
| ABN | African Broadcasting Network |
| ABN | Alarm Broadband Network |
| ADN | Advanced Digital Network |
| ADN | Application Delivery Network |
| AFKN | American Forces Korea Network (skr.) |
| AKN | Advanced Knowledge Networks (skr.) |
| ASR | Apple Software Restore |
| AT | Aphex Twin |