Who owns MAC prefix A45FB9?

A45FB9 is registered to DreamBig Semiconductor, Inc. in the IEEE MA-L registry.

What devices use A45FB9?

Any network device with a MAC address starting A4:5F:B9 was manufactured by or for DreamBig Semiconductor, Inc..

MA-L · OUI prefix

DreamBig Semiconductor, Inc.

Any MAC address starting A4:5F:B9 is registered to DreamBig Semiconductor, Inc. in US.

OUI prefix	A45FB9
Vendor	DreamBig Semiconductor, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	A4:5F:B9:00:00:00

What this means

The IEEE assigned the MA-L block A45FB9 to DreamBig Semiconductor, Inc.. 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 A4:5F:B9, it is DreamBig Semiconductor, Inc. hardware.

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