Who owns MAC prefix 00E074?

00E074 is registered to TIERNAN COMMUNICATIONS, INC. in the IEEE MA-L registry.

What devices use 00E074?

Any network device with a MAC address starting 00:E0:74 was manufactured by or for TIERNAN COMMUNICATIONS, INC..

MA-L · OUI prefix

TIERNAN COMMUNICATIONS, INC.

Any MAC address starting 00:E0:74 is registered to TIERNAN COMMUNICATIONS, INC. in US.

OUI prefix	00E074
Vendor	TIERNAN COMMUNICATIONS, INC.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:E0:74:00:00:00

What this means

The IEEE assigned the MA-L block 00E074 to TIERNAN COMMUNICATIONS, 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 00:E0:74, it is TIERNAN COMMUNICATIONS, INC. hardware.

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