Who owns MAC prefix 9C55B4?

9C55B4 is registered to I.S.E. S.r.l. in the IEEE MA-L registry.

What devices use 9C55B4?

Any network device with a MAC address starting 9C:55:B4 was manufactured by or for I.S.E. S.r.l..

MA-L · OUI prefix

I.S.E. S.r.l.

Any MAC address starting 9C:55:B4 is registered to I.S.E. S.r.l. in IT.

OUI prefix	9C55B4
Vendor	I.S.E. S.r.l.
Registry	MA-L (24-bit, large block)
Country	IT
Example MAC	9C:55:B4:00:00:00

What this means

The IEEE assigned the MA-L block 9C55B4 to I.S.E. S.r.l.. 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 9C:55:B4, it is I.S.E. S.r.l. hardware.

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