Who owns MAC prefix 0025AC?

0025AC is registered to I-Tech corporation in the IEEE MA-L registry.

What devices use 0025AC?

Any network device with a MAC address starting 00:25:AC was manufactured by or for I-Tech corporation.

MA-L · OUI prefix

I-Tech corporation

Any MAC address starting 00:25:AC is registered to I-Tech corporation in JP.

OUI prefix	0025AC
Vendor	I-Tech corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:25:AC:00:00:00

What this means

The IEEE assigned the MA-L block 0025AC to I-Tech 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 00:25:AC, it is I-Tech corporation hardware.

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