What this means
The IEEE assigned the MA-L block 38EFE3 to INGENICO TERMINALS SAS. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 38:EF:E3, it is INGENICO TERMINALS SAS hardware.
Frequently Asked Questions
Who owns MAC prefix 38EFE3?
38EFE3 is registered to INGENICO TERMINALS SAS in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. INGENICO TERMINALS SAS's block covers 16,777,216 addresses.
What devices use 38EFE3?
Any network device with a MAC address starting 38:EF:E3 was manufactured by or for INGENICO TERMINALS SAS.