What this means
The IEEE assigned the MA-L block 001D66 to HYUNDAI HT 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 00:1D:66, it is HYUNDAI HT Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001D66?
001D66 is registered to HYUNDAI HT 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. HYUNDAI HT Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 001D66?
Any network device with a MAC address starting 00:1D:66 was manufactured by or for HYUNDAI HT Co., Ltd..