iPhone Model Number Lookup – Identify iPhone by Axxxx Number

Enter an Apple hardware model number such as A3634 or A3575 to identify the matching iPhone. This database includes every A-number in Apple’s current iPhone identification list, from the original 2007 iPhone through iPhone 17e.

How to find the A-number

• Open Settings, tap General, then About.
• The first value beside Model Number is usually an Apple part number. Tap it once to reveal the shorter hardware model number beginning with A.
• On an iPhone 7 or earlier, the A-number may be printed on the back.
• On an iPhone 8 or later with a SIM tray, Apple says the number is inside the SIM-tray slot. Trayless models show it inside the USB-C or Lightning connector.

How to read the results

The iPhone column uses Apple’s product name. Generation groups closely related models into a practical family such as 17 series or SE (3rd generation). Year and Capacity preserve the options in Apple’s identification list. Capacity shows the storage sizes offered for that iPhone family; it does not determine the capacity of the phone in your hand.

Region describes where Apple associates that A-number when the identification page provides a market. Some older entries list several A-numbers without assigning a country to each one; those rows say Not specified by Apple instead of guessing. A region label also does not guarantee local carrier compatibility, because supported bands, carrier activation and regulatory features can differ.

Understanding the SIM configuration

SIM hardware changed across iPhone generations and markets. Early models used mini-SIM or micro-SIM, later models moved to nano-SIM, and iPhone XS, XS Max and XR introduced eSIM support in supported markets. Apple says iPhone 13 models and later can also use two eSIMs. United States variants of iPhone 14 and later are trayless, while the iPhone 17 family extends trayless hardware to additional markets. iPhone Air is eSIM-only in every listed region.

China mainland, Hong Kong and Macao need special handling. Apple lists dual nano-SIM hardware for selected models, while eSIM availability follows separate regional rules. The table applies Apple’s current guidance to the stated A-number region. For older A-numbers with no region assignment, it reports that eSIM or dual-SIM support varies rather than inventing a market. Carrier support is still required for eSIM activation.

Common iPhone model-number questions

Apple can revise model and SIM guidance when new devices or regional services launch. If a row no longer matches Apple’s current documentation, use Report incorrect data and include the relevant Apple Support link.