Who owns MAC prefix 581F67?

581F67 is registered to Open-m technology limited in the IEEE MA-L registry.

What devices use 581F67?

Any network device with a MAC address starting 58:1F:67 was manufactured by or for Open-m technology limited.

MA-L · OUI prefix

Open-m technology limited

Any MAC address starting 58:1F:67 is registered to Open-m technology limited in CN.

OUI prefix	581F67
Vendor	Open-m technology limited
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	58:1F:67:00:00:00

What this means

The IEEE assigned the MA-L block 581F67 to Open-m 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 58:1F:67, it is Open-m technology limited hardware.

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