Who owns MAC prefix AC915D?

AC915D is registered to Digital Control Technology Limited in the IEEE MA-L registry.

What devices use AC915D?

Any network device with a MAC address starting AC:91:5D was manufactured by or for Digital Control Technology Limited.

MA-L · OUI prefix

Digital Control Technology Limited

Any MAC address starting AC:91:5D is registered to Digital Control Technology Limited in HK.

OUI prefix	AC915D
Vendor	Digital Control Technology Limited
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	AC:91:5D:00:00:00

What this means

The IEEE assigned the MA-L block AC915D to Digital Control Technology Limited. 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 AC:91:5D, it is Digital Control Technology Limited hardware.

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