Who owns MAC prefix 000A03?

000A03 is registered to ENDESA SERVICIOS, S.L. in the IEEE MA-L registry.

What devices use 000A03?

Any network device with a MAC address starting 00:0A:03 was manufactured by or for ENDESA SERVICIOS, S.L..

MA-L · OUI prefix

ENDESA SERVICIOS, S.L.

Any MAC address starting 00:0A:03 is registered to ENDESA SERVICIOS, S.L. in ES.

OUI prefix	000A03
Vendor	ENDESA SERVICIOS, S.L.
Registry	MA-L (24-bit, large block)
Country	ES
Example MAC	00:0A:03:00:00:00

What this means

The IEEE assigned the MA-L block 000A03 to ENDESA SERVICIOS, 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 00:0A:03, it is ENDESA SERVICIOS, S.L. hardware.

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