What this means
The IEEE assigned the MA-L block D40ADC to Qingdao Intelligent&Precise Electronics 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 D4:0A:DC, it is Qingdao Intelligent&Precise Electronics Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix D40ADC?
D40ADC is registered to Qingdao Intelligent&Precise Electronics 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. Qingdao Intelligent&Precise Electronics Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use D40ADC?
Any network device with a MAC address starting D4:0A:DC was manufactured by or for Qingdao Intelligent&Precise Electronics Co.,Ltd..