Who owns MAC prefix 0CEFAFD?

0CEFAFD is registered to CJSC «Svyaz Engineering» in the IEEE MA-M registry.

What devices use 0CEFAFD?

Any network device with a MAC address starting 0C:EF:AF:D was manufactured by or for CJSC «Svyaz Engineering».

MA-M · OUI prefix

CJSC «Svyaz Engineering»

Any MAC address starting 0C:EF:AF:D is registered to CJSC «Svyaz Engineering».

OUI prefix	0CEFAFD
Vendor	CJSC «Svyaz Engineering»
Registry	MA-M (28-bit, medium block)
Example MAC	0C:EF:AF:D:00:00:00

What this means

The IEEE assigned the MA-M block 0CEFAFD to CJSC «Svyaz Engineering». 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 0C:EF:AF:D, it is CJSC «Svyaz Engineering» hardware.

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