Who owns MAC prefix 00037B?

00037B is registered to IDEC IZUMI Corporation in the IEEE MA-L registry.

What devices use 00037B?

Any network device with a MAC address starting 00:03:7B was manufactured by or for IDEC IZUMI Corporation.

MA-L · OUI prefix

IDEC IZUMI Corporation

Any MAC address starting 00:03:7B is registered to IDEC IZUMI Corporation in JP.

OUI prefix	00037B
Vendor	IDEC IZUMI Corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:03:7B:00:00:00

What this means

The IEEE assigned the MA-L block 00037B to IDEC IZUMI Corporation. 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 00:03:7B, it is IDEC IZUMI Corporation hardware.

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