Who owns MAC prefix E03C1C1?

E03C1C1 is registered to Shikino High-Tech Co., Ltd. in the IEEE MA-M registry.

What devices use E03C1C1?

Any network device with a MAC address starting E0:3C:1C:1 was manufactured by or for Shikino High-Tech Co., Ltd..

MA-M · OUI prefix

Shikino High-Tech Co., Ltd.

Any MAC address starting E0:3C:1C:1 is registered to Shikino High-Tech Co., Ltd. in JP.

OUI prefix	E03C1C1
Vendor	Shikino High-Tech Co., Ltd.
Registry	MA-M (28-bit, medium block)
Country	JP
Example MAC	E0:3C:1C:1:00:00:00

What this means

The IEEE assigned the MA-M block E03C1C1 to Shikino High-Tech 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 E0:3C:1C:1, it is Shikino High-Tech Co., Ltd. hardware.

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