A3523

iPhone 17 Pro (iPhone18,1) - Front view

iPhone 17 Pro

iPhone18,1

A3256
A3522
A3523
A3524
View Firmware Signing Status Downgrade Status
Quick Info
Earliest Firmware
iOS 26.0
September 18, 2025
Latest Firmware
iOS 27.0.1
September 28, 2026
Total Firmware
19 releases
Support Span
1 years
About model A3523

The model number A3523 belongs to the iPhone 17 Pro (device identifier iPhone18,1). 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 A3256, A3522, A3524 and A3523?

Nothing software-related. These model numbers all refer to the same iPhone 17 Pro; Apple uses them for regional and connectivity variants, and firmware support is identical across all of them.

A3256
A3522
A3524