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.
Frequently Asked Questions
Who owns MAC prefix 0CEFAFD?
0CEFAFD is registered to CJSC «Svyaz Engineering» in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. CJSC «Svyaz Engineering»'s block covers 1,048,576 addresses.
What devices use 0CEFAFD?
Any network device with a MAC address starting 0C:EF:AF:D was manufactured by or for CJSC «Svyaz Engineering».