What this means
The IEEE assigned the MA-L block DC330D to QING DAO HAIER TELECOM 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 DC:33:0D, it is QING DAO HAIER TELECOM CO.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix DC330D?
DC330D is registered to QING DAO HAIER TELECOM 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. QING DAO HAIER TELECOM CO.,LTD.'s block covers 16,777,216 addresses.
What devices use DC330D?
Any network device with a MAC address starting DC:33:0D was manufactured by or for QING DAO HAIER TELECOM CO.,LTD..