An explanation on how mac addresses are derived on the ESP32: https://docs.espressif.com/projects/esp … dress.html An explanation for how many universal (unique) mac addresses are allocated to each ESP32 https://docs.espressif.com/projects/esp … ystem.html Read MAC Address 8 bytes are stroed in total. 6 bytes for MAC-48, 8 bytes for EUI-64 Display device MAC address to console