How to Look Up Your iPhone Serial Number
Knowing how to find your iPhone’s serial number can help with warranty checks, repairs, insurance claims, and troubleshooting. The good news: there are several quick ways to look it up—no special tools required.
1) Find the Serial Number in Your iPhone Settings
This is the most common method.
- Open Settings
- Tap General
- Tap About
- Look for Serial Number
✅ Tip: On some iOS versions, you may need to scroll slightly to see it.
2) Look It Up Using the iPhone’s Physical SIM/Device Markings
Depending on your iPhone model, the serial number (or the regulatory markings that include it) may be printed on the device.
- Back of the device (some models)
- On the original box label (often easiest to confirm)
- Under the SIM tray (sometimes shown on the tray for certain regions/models)
If you have the original packaging, this method is often fastest.
3) Check the Serial Number on Your Mac (Finder or iTunes)
If your iPhone is connected to a Mac, you can retrieve the serial number from the device info.
Using macOS Finder (macOS Catalina and later)
- Connect your iPhone to your Mac via USB
- Open Finder
- Select your iPhone under Locations
- Click General
- Look for Serial Number
Using older macOS / iTunes
- Connect your iPhone to your computer
- Open iTunes
- Select the device icon
- Go to the Summary tab
- Find Serial Number
4) Check the Serial Number on a Windows PC (iTunes)
- Connect your iPhone to your Windows PC via USB
- Open iTunes
- Select your iPhone
- Go to Summary
- Find Serial Number
5) Use the Original Proof / Purchase Documentation
Often overlooked: the serial number may appear on:
- Your Apple invoice
- Receipt
- Warranty paperwork
- Carrier documentation (in some cases)
If you’re dealing with warranty claims and your phone won’t boot, these records can be crucial.
6) Important Security Tip
Your iPhone serial number is sensitive. Avoid sharing it publicly or with untrusted parties. If you need it for support, share it only with legitimate Apple support channels or reputable service providers.
Quick Recap
- Best on-device method: Settings → General → About → Serial Number
- Best if the phone won’t work: Original box/receipt or external markings
- Best if using a computer: Finder/iTunes Summary/General
If you tell me which iPhone model and iOS version you’re using (or whether the phone still turns on), I can recommend the fastest method for your situation.
