Who owns MAC prefix 305DA6?

305DA6 is registered to ADVALY SYSTEM Inc. in the IEEE MA-L registry.

What devices use 305DA6?

Any network device with a MAC address starting 30:5D:A6 was manufactured by or for ADVALY SYSTEM Inc..

MA-L · OUI prefix

ADVALY SYSTEM Inc.

Any MAC address starting 30:5D:A6 is registered to ADVALY SYSTEM Inc. in JP.

OUI prefix	305DA6
Vendor	ADVALY SYSTEM Inc.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	30:5D:A6:00:00:00

What this means

The IEEE assigned the MA-L block 305DA6 to ADVALY SYSTEM Inc.. 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 30:5D:A6, it is ADVALY SYSTEM Inc. hardware.

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