What this means
The IEEE assigned the MA-L block 0018AC to Shanghai Jiao Da HISYS 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 00:18:AC, it is Shanghai Jiao Da HISYS Technology Co. Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 0018AC?
0018AC is registered to Shanghai Jiao Da HISYS 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. Shanghai Jiao Da HISYS Technology Co. Ltd.'s block covers 16,777,216 addresses.
What devices use 0018AC?
Any network device with a MAC address starting 00:18:AC was manufactured by or for Shanghai Jiao Da HISYS Technology Co. Ltd..