Wednesday, May 25, 2011

How to Find Your iPhone’s Unique Identifier (UDID)

What is the UDID?

Each iPhone or iPod Touch has a Unique Device Identifier (UDID),
which is a sequence of 40 letters and numbers that is specific to your
device. It’s like a serial number but much harder to guess. It
will look something like this:

Why do we need the UDID?

Your iPhone can only install programs that are approved by Apple.
Applications in the App Store have been approved by Apple for general
distribution, but beta customers get to try the app before it’s in the
store. We register your UDID with Apple so they can approve our
application especially for your iPhone.

How do I get my UDID?

You can copy/paste your UDID from iTunes or email it directly from
your device by using a free app from the App Store.

Email Using the Free App

Install and run
Ad Hoc Helper.
It will create an email with your UDID. Send it to

Copy/Paste from iTunes

  1. Launch iTunes and connect your iPhone.
  2. In the right pane, locate the information about your iPhone,
    including its name, capacity, software version, serial number, and
    phone number.

  3. Reveal the Identifier by clicking on Serial Number:.

  4. Copy the Identifier to your clipboard by choosing EditCopy.
  5. Paste the Identifier into an email to
    (You should be able to paste into your mail program or web browser by
    selecting EditPaste).

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