Convert Globalstar ESN between Hex and Decimal
Decimal ESN vs Hex ESN:
You can distinguish between a hex and a decimal ESN value by the length of the ESN or by its alphanumeric content.

 The decimal ESN is 11 digits
 The hex ESN is 8 alphanumeric characters.
 Both forms of the ESN represent the same exact ESN.
 Both versions are displayed on the label so that even if some of the characters on the label are worn off over time, it will usually still be possible to easily determine the ESN of the phone from the label.
 If it is not possible to determine the ESN from the printed label, you can use one of the electronic retrieval methods (mentioned below) to obtain the ESN.
 Digits 13 of the Decimal ESN ==> Manufacturer Code
 179 for the original Qualcomm phones
 116 for all other Qualcomm phones
 Digits 411 of the Decimal ESN ==> Unique Code for the phone or modem
 Install the Analysis Toolpak for Excel
 The Analysis Toolpak is provided by Microsoft along with the Excel installation disk, but it is not part of the default installation.
 Use the following formulas to convert between Hex and Decimal:
[…] Convert Globalstar ESN between Hex and Decimal […]
How to Find the ESN of a Globalstar Phone  Globalstar Product Management  Technical Support
March 25, 2021 at 11:50 am