Who owns MAC prefix 640E9B?

640E9B is registered to ISHIDA MEDICAL CO., LTD. in the IEEE MA-L registry.

What devices use 640E9B?

Any network device with a MAC address starting 64:0E:9B was manufactured by or for ISHIDA MEDICAL CO., LTD..

MA-L · OUI prefix

ISHIDA MEDICAL CO., LTD.

Any MAC address starting 64:0E:9B is registered to ISHIDA MEDICAL CO., LTD. in JP.

OUI prefix	640E9B
Vendor	ISHIDA MEDICAL CO., LTD.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	64:0E:9B:00:00:00

What this means

The IEEE assigned the MA-L block 640E9B to ISHIDA MEDICAL 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 64:0E:9B, it is ISHIDA MEDICAL CO., LTD. hardware.

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