Who owns MAC prefix D858D7?

D858D7 is registered to CZ.NIC, z.s.p.o. in the IEEE MA-L registry.

What devices use D858D7?

Any network device with a MAC address starting D8:58:D7 was manufactured by or for CZ.NIC, z.s.p.o..

MA-L · OUI prefix

CZ.NIC, z.s.p.o.

Any MAC address starting D8:58:D7 is registered to CZ.NIC, z.s.p.o. in CZ.

OUI prefix	D858D7
Vendor	CZ.NIC, z.s.p.o.
Registry	MA-L (24-bit, large block)
Country	CZ
Example MAC	D8:58:D7:00:00:00

What this means

The IEEE assigned the MA-L block D858D7 to CZ.NIC, z.s.p.o.. 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 D8:58:D7, it is CZ.NIC, z.s.p.o. hardware.

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