What devices use 00129B?

Any network device with a MAC address starting 00:12:9B was manufactured by or for E2S Electronic Engineering Solutions, S.L..

MA-L · OUI prefix

E2S Electronic Engineering Solutions, S.L.

Q: Who owns MAC prefix 00129B?

00129B is registered to E2S Electronic Engineering Solutions, S.L. in the IEEE MA-L registry.

Any MAC address starting 00:12:9B is registered to E2S Electronic Engineering Solutions, S.L. in ES.

OUI prefix	00129B
Vendor	E2S Electronic Engineering Solutions, S.L.
Registry	MA-L (24-bit, large block)
Country	ES
Example MAC	00:12:9B:00:00:00

What this means

The IEEE assigned the MA-L block 00129B to E2S Electronic Engineering Solutions, S.L.. 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 00:12:9B, it is E2S Electronic Engineering Solutions, S.L. hardware.

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