Who owns MAC prefix 0040C5?

0040C5 is registered to MICOM COMMUNICATIONS INC. in the IEEE MA-L registry.

What devices use 0040C5?

Any network device with a MAC address starting 00:40:C5 was manufactured by or for MICOM COMMUNICATIONS INC..

MA-L · OUI prefix

MICOM COMMUNICATIONS INC.

Any MAC address starting 00:40:C5 is registered to MICOM COMMUNICATIONS INC. in US.

OUI prefix	0040C5
Vendor	MICOM COMMUNICATIONS INC.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:C5:00:00:00

What this means

The IEEE assigned the MA-L block 0040C5 to MICOM COMMUNICATIONS 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 00:40:C5, it is MICOM COMMUNICATIONS INC. hardware.

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