| Abbreviation | Definition |
|---|---|
| 8B1 | The error message you get when a MMI code doesn't work on your cell, with Koodo anyways. |
| A | Accepted |
| A | All lines |
| AA | Agile Access |
| AA | Auto Answer |
| AABS | Assignment and Analysis of Broadband Spectra |
| AAC | Alternate Area Code |
| AAC-ELD | Advanced Audio Coding Enhanced Low Delay |
| AAC-ELD | Advanced Audio Coding – Enhanced Low Delay |
| AAC-ELD | Advanced Audio Coding ??? Enhanced Low Delay |
| AADC | Automated Area Distribution Center |
| AADS | Ameritech Advanced Data Services |
| AAL | ATM (Asynchronous Transmission Mode) Adaptive Layer |
| AAL2 | ATM (Asynchronous Transmission Mode) Adaptation Layer 2 |
| AAL5 | ATM (Asynchronous Transmission Mode) Adaptation Layer 5 |
| AAP | Alternate Access Provider |
| AAPR | Annual Average Performance Ratio |
| AAR | Automatic Alternate Routing |
| AAS | Adaptive Antenna System |
| AASR | Abbreviated Access Service Request |