Who owns MAC prefix 00E0C0?

00E0C0 is registered to SEIWA ELECTRIC MFG. CO., LTD. in the IEEE MA-L registry.

What devices use 00E0C0?

Any network device with a MAC address starting 00:E0:C0 was manufactured by or for SEIWA ELECTRIC MFG. CO., LTD..

MA-L · OUI prefix

SEIWA ELECTRIC MFG. CO., LTD.

Any MAC address starting 00:E0:C0 is registered to SEIWA ELECTRIC MFG. CO., LTD. in JP.

OUI prefix	00E0C0
Vendor	SEIWA ELECTRIC MFG. CO., LTD.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:E0:C0:00:00:00

What this means

The IEEE assigned the MA-L block 00E0C0 to SEIWA ELECTRIC MFG. CO., LTD.. 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:E0:C0, it is SEIWA ELECTRIC MFG. CO., LTD. hardware.

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