What this means
The IEEE assigned the MA-L block D05A0F to I-BT DIGITAL 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 D0:5A:0F, it is I-BT DIGITAL CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix D05A0F?
D05A0F is registered to I-BT DIGITAL 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. I-BT DIGITAL CO.,LTD's block covers 16,777,216 addresses.
What devices use D05A0F?
Any network device with a MAC address starting D0:5A:0F was manufactured by or for I-BT DIGITAL CO.,LTD.