Who owns MAC prefix 000366?

000366 is registered to ASM Pacific Technology in the IEEE MA-L registry.

What devices use 000366?

Any network device with a MAC address starting 00:03:66 was manufactured by or for ASM Pacific Technology.

MA-L · OUI prefix

ASM Pacific Technology

Any MAC address starting 00:03:66 is registered to ASM Pacific Technology in HK.

OUI prefix	000366
Vendor	ASM Pacific Technology
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	00:03:66:00:00:00

What this means

The IEEE assigned the MA-L block 000366 to ASM Pacific Technology. 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 00:03:66, it is ASM Pacific Technology hardware.

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