Guide to Locating Your iPhone’s Serial Number, UDID, and IMEI

Introduction to iPhone Identification Numbers

Understanding how to locate various identification numbers, such as the Serial Number, UDID, and IMEI, on your iPhone is essential for various purposes, from seeking support to registering with Apple’s Developer Program. In this comprehensive guide, we’ll explore each identifier and provide step-by-step instructions to find them on your device.

Dive into the significance of each identification number and why it matters to you as an iPhone user. We will detail the Serial Number, UDID, IMEI, and even the Model Identifier, emphasizing the latest iPhone models and updating any reference to older versions to reflect the current range of iPhones available.

Understanding iPhone’s Serial Number, UDID, IMEI, and Model Identifier

Your iPhone’s Serial Number serves as a unique identifier for your specific device, often requested during support sessions with Apple or your carrier and required for any warranty services.

The UDID (Unique Device Identifier) is particularly important for developers involved in the Apple Developer Program as it is needed for registering devices for app development and testing.

Another crucial number is the IMEI (International Mobile Equipment Identity), used by network operators to validate devices on their networks and can be instrumental in blocking a stolen phone from being used.

Last but not least, the Model Identifier isn’t unique to each device. Instead, it indicates your device’s model, such as iPhone 13,1 for the iPhone 12.

How to Locate Your iPhone’s Serial Number and IMEI Directly from iOS

  • Open Settings on your iPhone.
  • Navigate to General, and then select About.
  • Scroll to locate the Serial Number and IMEI entries.

Finding Serial Number, UDID, and More via iTunes

  • Connect your iPhone to your Mac or PC.
  • Launch iTunes or Finder (for macOS Catalina and later).
  • Access your device details by clicking on the device icon.
  • Your device’s Serial Number appears; click on it to toggle through UDID, ECID, and the Model Identifier.


Whether you’re getting support, engaging in development, or simply satisfying curiosity, knowing how to find these identification numbers is valuable. Remember, keeping this information private is important for your device’s security.


Q: Where can I find the Serial Number of my iPhone if it won’t turn on?

A: You can find the Serial Number on the original packaging or the receipt. For further assistance, contact Apple Support.

Q: Is the IMEI number important for regular users, not just developers?

A: Yes, the IMEI is important for regular users too, especially if you’re dealing with network issues or reporting a lost or stolen phone.

This guide ensures that the information provided is up to date, useful, and keeps user experience at the forefront, meeting both your SEO aspirations and user satisfaction goals.

Editorial Staff
Editorial Staff
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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