What is “ESN”?
ESN stands for Electronic Serial Number. Every phone has got a different ESN, like the fingerprint. Phone carriers use ESN to monitor whether the account owner has any past due bills or phone has been reported as lost or stolen.
It is a number of combination both decimal and hexadecimal which uniquely identify a CDMA phone. An ESN can also be referred to as a “MEID or “ESN.
Basically, the ESN is used to figure out the subscriber’s account on the CDMA network. when switching from one phone to another, subscribers will have to provide the ESN of the new phone to the network carrier before it can be activated.
A CDMA cell phone generally does not use a SIM card to identify and authenticate subscribers to the network (like a GSM carrier does). You can check if your phone has a good or bad ESN by calling the carrier, or checking with checkesnfree.com .
How/ where can I get ESN?
There are several ways to find out your ESN we have described the easiest and quickest way to find your one # ESN is sealed underneath a phone’s battery # If your phone is open then find in Settings > General > About # If you have your product’s original packaging, you can check the barcode to find the ESN. # you are also found your ESN in Devices tab in iTunes preferences. # You can also found your ESN on the original product receipt or invoice.
What is a Bad ESN?
If you check online or call to customer care may tell you your phone has a “bad” ESN.
This means that it can not be activated with them. that means the phone likely has an overdue balance on owner account or had previously reported it lost/stolen.
In speaking with your carrier you should be able to resolve this if you have enough data to provide them with proof you are the owner and also able to pay.
If you received a phone with a bad ESN, you will need to contact the previous owner and have them try to resolve it.
Official ESN check T-mobile
T-mobile: http://www.t-mobile.com/verifyIMEI.aspx
Or T-Mobile 1-800-866-2453
Official ESN check AT&T
AT&T 1-800-331-0500
Or AT&T : https://m.att.com/shopmobile/wireless/byop/checkIMEI.html
Official ESN check Verizon
Verizon:https://login.verizonwireless.com/amserver/UI/Login Verizon 1-800-922-0204
Official ESN check Sprint
Sprint 1-888-211-4727 or checkesnfree.com US Cellular 1-888-944-9400
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