In today’s digital world, eSIM technology is changing how people connect their devices to mobile networks. One important part of this technology is the EID Number. This unique number plays a key role in managing and activating eSIM profiles on devices without needing a physical SIM card. Understanding what an EID Number is and how to use it helps make your mobile experience simple and easy.

What is an EID Number?

The EID, or Embedded Identity Document, is a unique number built into devices that support eSIM technology. It acts as the device’s digital identity, allowing mobile operators to securely provide and manage eSIM profiles remotely. This number ensures that each device can be recognized and authenticated on mobile networks without the need for a physical SIM card. The EID is essential for the security and proper functioning of eSIM services [1].

Why is your EID Number important?

Your EID Number is important because it helps mobile operators verify your device and connect it to their networks securely. It acts as a digital identifier that ties your eSIM profile to your device. Without the EID, your device cannot receive or activate eSIM profiles, which means you would not be able to use mobile data or calls through an eSIM. Additionally, the EID helps protect your privacy by preventing unauthorized access to your mobile service.

What is the EID Number for eSIM?

The EID Number in the context of eSIM is the unique code that identifies your device to mobile operators when activating or managing eSIM profiles. When you add an eSIM plan to your device, the operator uses your EID to ensure the profile is sent to the correct device securely. This process eliminates the need for a physical SIM card and allows flexible management of mobile plans.

Services like Roamless eSIM leverage the EID Number to enable secure and flexible global mobile connectivity, allowing users to access data plans across multiple countries without the need for physical SIM cards.

Disclaimer: It is important to keep your EID Number private and not share it with untrusted parties, as it links directly to your mobile service and personal data.

How do I find my EID number

The method to find your EID Number depends largely on the type of device and operating system you use. While most modern devices display the EID in the settings menu, the exact location and naming conventions can vary between manufacturers and models. For example, iOS devices such as iPhones and iPads list the EID in the About section, while Android devices may show it under different menus depending on the brand, such as Samsung or Google Pixel. To ensure you find the correct information, detailed instructions for popular iOS and Android devices are provided below.

How to find an EID Number on iOS

Finding the EID number on iOS devices is straightforward through the settings app. Below are step-by-step instructions for iPhone, Apple Watch, and cellular iPad models:

On iPhone

1. Open the Settings app.

2. Tap on General.

3. Select About.

4. Scroll down until you see the EID listed along with other device identifiers [2].

On Apple Watch

1. Open the Watch app on your paired iPhone.

2. Tap General.

3. Tap About.

4. Locate the EID number in the list.

On iPad (only cellular models)

1. Open the Settings app.

2. Tap General.

3. Select About.

4. Scroll down to find the EID listed among device identifiers.

How to find an EID Number on Android

Locating the EID number on Android devices can vary by manufacturer and model. Detailed instructions for popular brands such as Samsung, Google Pixel, and OnePlus are provided below:

On Samsung Phones

1. Open Settings.

2. Scroll down and select About Phone.

3. Tap Status or SIM Status.

4. Look for the EID number listed there [3].

On Samsung Watch

1. Open the Galaxy Wearable app on your connected phone.

2. Go to About Watch.

3. Find the EID number in the device information.

On Google Pixel Phone

1. Open Settings.

2. Tap About Phone.

3. Tap SIM status or Network.

4. Locate the EID number.

On OnePlus Phone

1. Open Settings.

2. Tap About Phone.

3. Select Status.

4. Find the EID listed in the device details.

What if I can’t find my EID number?

Sometimes, the EID number may not be immediately visible due to software glitches, outdated device settings, or device-specific restrictions. The following steps can help you troubleshoot and locate your EID number safely:

• Check that your device software is up to date.

• Restart your device and try again.

• Consult the device user manual for specific instructions.

• Contact your device manufacturer or mobile operator for support.

Disclaimer: When facing issues locating your EID, reaching out to official support channels is the safest option.

What to do if my EID Number is not working for eSIM activation?

Problems during eSIM activation related to the EID Number can occur due to simple entry errors, device incompatibility, or carrier network restrictions. The following checklist outlines common causes and solutions to help ensure a successful eSIM activation:

• Verify that you have entered the correct EID without mistakes.

• Ensure your device supports eSIM and is compatible with the carrier’s network.

• Check for any network restrictions or locks on your device.

• Contact your mobile operator to confirm that the EID is registered and not blocked.

For more information, to successfully activate your eSIM on your mobile devices, you can check out our detailed guides on How to activate eSIM on iPhone and How to activate eSIM on Android.

Disclaimer: Activation problems can be caused by device or network issues, so official support should be consulted if problems persist.

How to Keep Your EID Number Secure and Private

Protecting your EID Number is essential because it is linked directly to your mobile identity and service. Keeping it secure helps prevent unauthorized access and potential misuse of your mobile account. Below are important steps to safeguard your EID Number:

• Do not share your EID publicly or with unknown parties.

• Avoid posting screenshots or photos that display your EID online.

• Only provide your EID to trusted mobile operators or authorized service providers.

• Regularly update your device software to protect against security vulnerabilities.

Disclaimer: Protecting your EID helps safeguard your mobile identity and personal information.

Understanding the Differences Between EID, IMEI, and ICCID Numbers

Many people confuse EID, IMEI, and ICCID numbers because they all serve as unique identifiers related to mobile devices and SIM services. The table below summarizes their key differences in purpose, format, and usage to help clarify these terms:

Table: Comparison of EID, IMEI, and ICCID Numbers

Understanding these helps in managing your device and mobile subscriptions effectively.

Common Myths About the EID Number

There are several misconceptions about the EID Number that can cause confusion. Clarifying these myths helps users understand the true nature and functionality of the EID in eSIM technology:

• Myth 1: The EID Number is the same as the IMEI.
  Fact: The EID identifies the embedded SIM, whereas the IMEI identifies the physical device.

• Myth 2: Everyone’s EID Number is the same.
  Fact: Each device has a unique EID number, which is different from all others.

• Myth 3: The EID Number can be changed by the user.
  Fact: The EID is embedded in the device hardware and cannot be altered.

• Myth 4: EID Numbers are publicly accessible and pose no security risk.
  Fact: EID Numbers should be kept private as they link directly to mobile service profiles.

Understanding and dispelling these common myths ensures better awareness and safer use of your device’s EID Number.

FAQ

What is an EID on a phone?
- The EID is a unique embedded number that identifies your device for eSIM management.

Where to find an EID number?
- It is typically found in the device’s settings under About or Status sections.

How do I get my EID number for eSIM?
- Your device automatically contains the EID; it cannot be changed and is visible in settings.

How to get a 32 digit EID number?
- Most devices display the full 32-digit EID in the About section of the settings.

Is the EID number the same as the SIM card number?
- No, the SIM card number is called ICCID; EID is for the embedded eSIM chip.

How long is the EID number?
- It is a 32-digit hexadecimal number.

Which phones have an EID number and support eSIM?
- Devices that support eSIM, such as recent iPhones, cellular iPads, Google Pixels, Samsung phones, and smartwatches, have an EID number. For more information, you can read our posts on eSIM Compatible Phones, eSIM Compatible iPhones and Samsung Phones with eSIM.

What if my EID number is blocked?
- Contact your carrier or device manufacturer for assistance.

Is an EID number the same as an IMEI number?
- No, IMEI identifies the physical device, while EID identifies the embedded SIM.

What is the difference between an EID number and an ICCID number?
- EID identifies the device’s eSIM chip, ICCID identifies the SIM profile or card.

Is the EID number secure?
- Yes, but it should be kept private to protect your mobile identity.

Can I transfer my EID number to a new device?
- No, the EID is permanently embedded in each device.

Why is the EID number not showing on the iPhone?
- It may be hidden due to software versions or device restrictions; updating iOS or contacting support can help.

Sources

[1] GSM Association. ‘’EID Definition and Assignment Process’’, 2024. - https://www.gsma.com/solutions-and-impact/technologies/esim/wp-content/uploads/2024/03/SGP.29-v1.1.pdf

[2] Apple Support. ‘’Find the serial number, EID, or IMEI on your iPhone, iPad, or iPod touch’’. Accessed July 2025. https://support.apple.com/en-us/108037?device-type=iphone

[3] Samsung Community. ‘’How To Check This Device EID Number’’, 2024. - https://r2.community.samsung.com/t5/Others/How-To-Check-This-Device-EID-Number/td-p/16116230