What this means
The IEEE assigned the MA-L block 001DA4 to Hangzhou System Technology 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:A4, it is Hangzhou System Technology CO., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 001DA4?
001DA4 is registered to Hangzhou System Technology 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. Hangzhou System Technology CO., LTD's block covers 16,777,216 addresses.
What devices use 001DA4?
Any network device with a MAC address starting 00:1D:A4 was manufactured by or for Hangzhou System Technology CO., LTD.