Who owns MAC prefix AC3FA4?

AC3FA4 is registered to TAIYO YUDEN CO.,LTD in the IEEE MA-L registry.

What devices use AC3FA4?

Any network device with a MAC address starting AC:3F:A4 was manufactured by or for TAIYO YUDEN CO.,LTD.

MA-L · OUI prefix

TAIYO YUDEN CO.,LTD

Any MAC address starting AC:3F:A4 is registered to TAIYO YUDEN CO.,LTD in JP.

OUI prefix	AC3FA4
Vendor	TAIYO YUDEN CO.,LTD
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	AC:3F:A4:00:00:00

What this means

The IEEE assigned the MA-L block AC3FA4 to TAIYO YUDEN 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 AC:3F:A4, it is TAIYO YUDEN CO.,LTD hardware.

Other TAIYO YUDEN CO.,LTD prefixes

TAIYO YUDEN CO.,LTD holds 6 registered blocks in total.

00037A 002258 48A493 8CD54A D44B5E

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