Who owns MAC prefix 001B5C?

001B5C is registered to Azuretec Co., Ltd. in the IEEE MA-L registry.

What devices use 001B5C?

Any network device with a MAC address starting 00:1B:5C was manufactured by or for Azuretec Co., Ltd..

MA-L · OUI prefix

Azuretec Co., Ltd.

Any MAC address starting 00:1B:5C is registered to Azuretec Co., Ltd. in TW.

OUI prefix	001B5C
Vendor	Azuretec Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	00:1B:5C:00:00:00

What this means

The IEEE assigned the MA-L block 001B5C to Azuretec 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 00:1B:5C, it is Azuretec Co., Ltd. hardware.

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