A3517
Quick Info
- Earliest Firmware
- iOS 26.0
- September 15, 2025
- Latest Firmware
- iOS 27.0.1
- September 28, 2026
- Total Firmware
- 18 releases
- Support Span
- 1 years
About model A3517
The model number A3517 belongs to the iPhone Air (device identifier iPhone18,4). 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.