ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev. 11 Page 71 of 1039 2021-09-23
3.2.2.19. AT+CGSN - Request Product Serial Number Identification
This command allows to retrieve the product serial number in form of IMEI of the
mobile.
AT+CGSN
Execution command returns the product serial number in form of IMEI of
the mobile followed by an OK at newline.
Additional info:
The IMEI is composed of the following elements (each element
shall consist of decimal digits only):
1. Type Allocation Code (TAC). Its length is 8 digits
2. Serial Number (SNR) is an individual serial number
uniquely identifying each equipment within each TAC. Its
length is 6 digits
3. Luhn Check Digit. Its length is 1 digit
AT+CGSN=?
Test command returns OK result code.