| Abbreviation | Definition |
|---|---|
| 1X | 1XRTT (Single Carrier Radio Transmission Technology) |
| 1XRTT | Single Carrier Radio Transmission Technology |
| A2P | Application to Person |
| AAD | Associate Android Developer |
| AFMA | AdSense For Mobile Applications |
| AFU | After First Unlock |
| AGPS | Augmented Global Positioning System |
| A-GPS | Assisted Global Positioning System |
| A-GPS | Augmented Global Positioning System |
| AIMER | American Indian Mobile Educational Resources |
| AMDA | Automated Mobile Decontamination Appliance |
| AMFS | Advanced Mobile Filtration Services |
| AMM | Advanced Mobile Measurement |
| AMMR | Autonomous Mobile Manipulation Robot |
| AMN | Africa Mobile Networks |
| AMPS | Advanced Mobile Phone System |
| AMPS | American Mobile Phone System |
| AMPS | Analog Mobile Phone System |
| AMPT | Advanced Mobile Propulsion Test |
| AMR | Autonomous Mobile Robots |