What this means
The IEEE assigned the MA-L block D8F1D8 to OI ELECTRIC CO.,LTD. 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 D8:F1:D8, it is OI ELECTRIC CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix D8F1D8?
D8F1D8 is registered to OI ELECTRIC CO.,LTD 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. OI ELECTRIC CO.,LTD's block covers 16,777,216 addresses.
What devices use D8F1D8?
Any network device with a MAC address starting D8:F1:D8 was manufactured by or for OI ELECTRIC CO.,LTD.