Who owns MAC prefix 8489EC5?

8489EC5 is registered to Zephyr Engineering, Inc. in the IEEE MA-M registry.

What devices use 8489EC5?

Any network device with a MAC address starting 84:89:EC:5 was manufactured by or for Zephyr Engineering, Inc..

MA-M · OUI prefix

Zephyr Engineering, Inc.

Any MAC address starting 84:89:EC:5 is registered to Zephyr Engineering, Inc. in US.

OUI prefix	8489EC5
Vendor	Zephyr Engineering, Inc.
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	84:89:EC:5:00:00:00

What this means

The IEEE assigned the MA-M block 8489EC5 to Zephyr Engineering, Inc.. 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 84:89:EC:5, it is Zephyr Engineering, Inc. hardware.

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