what is an ESN on a phone

If you are curious about what is an ESN on a phone then you are at the perfect place. Today you will find out your answers related to the ESN number present on your mobile phone. I will tell you what ESN means, where it can be found, and many more. You will understand how you can check ESN details and how it is helpful for safety purposes, etc. So let us start where I will explain to you the important things about what is an ESN on a phone in further.

What Is An Esn On A Phone?

An ESN is the electronic serial number allotted to every electronic device like a phone or mobile. It is commonly present in the mobile devices that work on CDMA networks such as Verizon, Sprint, etc. The electronic serial number is specific and unique for every mobile device. It helps in the identification of the individual CDMA phones in which sim card facility is not available. The ESN number is a unique feature of the mobile and is useful in different ways that we will see further.

Uses Of ESN

Below you will come to know the uses of what is an ESN number on a phone. Let’s see.

  • For the identification of your phone ESN is very useful due to its specific and unique numbering system.
  • Verification of the phone network and type of the carrier is made easy with the ESN.
  • Blocking the different calls and fake calls can be done with ESN use.
  • When a phone is lost then for safety purposes ESN is useful to block ESN connectivity.
  • ESN is used at the time of claiming the damage and retrieving the insurance after its registration.

How To Check The ESN On Phone?

There are different ways for checking what is an ESN number on a cell phone that we will see below.

  1. Physical Method

This method is useful and can be performed for how to find ESN number check with a removable battery only.

  1. Switch Off the phone.
  2. Remove the Back Cover
  3. Now take out the battery carefully
  4. Check for a sticker pasted on the back panel/back of the battery
  5. You will find out the ESN, IMEI, and MDEI numbers easily.

However, some of the phones have a sticker pasted on their back cover of ESN number android devices where you do not need to remove the battery. The packaging box of the mobile device is also equipped with another sticker pasted on it with ESN, IMEI, and MDEI numbers.

  1. Settings

The second method for what is ESN on iPhone is to check the settings.

  1. Open your Phone
  2. Go to Settings
  3. Now select the General Option
  4. Tap on About 
  5. Now look for the ESN number

On some phones, you will find a direct About phone option after selecting the Settings application.

  1. Use Of Tool

Another method used to find what is an ESN on a cell phone by using a software tool. You will find out different software available for finding the ESN number of your phones. It results in showing the clean ESN meaning, IMEI, etc information about the phone after completion of the scan. This software requires some permission to detect the details from your phone related to the electronic SN.

What Is Bad ESN Phone Meaning?

A bad ESN phone means the mobile phone is been deactivated and blocked for safety purposes. In this process, a cell phone which is not been used for a long time, a mobile that is been lost, which is been stolen, etc is deactivated by the carrier network company. There must be dues not paid by the user which can also be a reason for the bad ESN. 

How To Know About Bad ESN?

You can find the details about the bad ESN by checking it on the internet or from the carrier support team. The process what is ESN straight talk can be done by contacting the customer care services of the carrier network.

Change Bad ESN Status

The bad ESN status can be changed easily in two ways as follows.

  1. Contacting Seller

Try contacting the mobile phone seller to cooperate with the bad ESN and clear the settlement related to the ESN.

  1. Carrier Port

Another way for changing the bad ESN number Samsung status is to port the carrier network. Many companies are interested to shift the ESN into their carrier without hesitation. This method helps to reregister the ESN into a new carrier with nominal charges.

On Whatisss you can get to know more facts like these.


Is ESN The Same As IMEI?

The IMEI and ESN (Electronic Serial Number) are similar in that they are both used to uniquely identify a mobile device, but they are not the same. The ESN was used by CDMA carriers such as Sprint and Verizon, and the IMEI is used by GSM carriers such as T-Mobile and AT&T.

How Do I Check My ESN Number?

How to check if a T-Mobile iPhone has a clean ESN:

  1. Go to the Verify IMEI T-Mobile page on T-Mobile’s website.
  2. Type your IMEI number into where it says “IMEI status check”
  3. Wait for the next page to load – it will tell you if your device is compatible.

What Does It Mean When A Phone Has A Bad ESN?

What does it mean if I have a bad ESN? A bad ESN means you can’t activate an iPhone on your current carrier. For example, if you purchase an iPhone with a bad ESN from someone who used it on Verizon, then you won’t be able to activate that phone on Verizon.

What Does An ESN Do?

GMS (AT&T and T-Mobile), which uses SIM cards to identify individual phones; and CDMA (Verizon and Sprint), which uses ESNs. ESN stands for Electronic Serial Number, and it functions just like any other serial number. Carriers use phone ESNs to identify specific phones and blacklist those that have been stolen.

Can I Use An iPhone With Bad ESN?

A bad ESN means you can’t activate an iPhone on your current carrier. For example, if you purchase an iPhone with a bad ESN from someone who used it on Verizon, then you won’t be able to activate that phone on Verizon.

What Does Bad ESN Mean For The IPhone?

An ESN will be considered ‘bad’ if: The phone is still active on the account (receiving calls and text messages, etc…) The wireless account has an outstanding balance. The phone has been reported lost or stolen.


Today we studied what is an ESN on a phone in detail. We discovered the ESN number its meaning and many important points as well as facts. I told you how to find and search ESN numbers. You understood the use of electronic serial numbers. I shared with you about the bad ESN and how to change the status of what is an ESN on a phone.


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