Who owns MAC prefix 4C98EF?

4C98EF is registered to Zeo in the IEEE MA-L registry.

What devices use 4C98EF?

Any network device with a MAC address starting 4C:98:EF was manufactured by or for Zeo.

MA-L · OUI prefix

Zeo

Any MAC address starting 4C:98:EF is registered to Zeo in US.

OUI prefix	4C98EF
Vendor	Zeo
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	4C:98:EF:00:00:00

What this means

The IEEE assigned the MA-L block 4C98EF to Zeo. 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 4C:98:EF, it is Zeo hardware.

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