A2591
- Earliest Firmware
- iPadOS 15.4
- March 14, 2022
- Latest Firmware
- iPadOS 27.0.1
- September 28, 2026
- Total Firmware
- 67 releases
- Support Span
- 4 years 6 months
The model number A2591 belongs to the iPad Air 5 (Cellular) (device identifier iPad13,17). Apple assigns multiple model numbers to each device for regional and connectivity variants, so one device usually carries several of them.
How do I find the model number on my device?
Open Settings > General > About and read the Model Number field. The number is also printed in the fine print on the back of the device and, on some models, on the SIM tray. Our model identification guide walks through every method.
What is the difference between A2589 and A2591?
Nothing software-related. These model numbers all refer to the same iPad Air 5 (Cellular); Apple uses them for regional and connectivity variants, and firmware support is identical across all of them.