Who owns MAC prefix 90EC77?

90EC77 is registered to silicom in the IEEE MA-L registry.

What devices use 90EC77?

Any network device with a MAC address starting 90:EC:77 was manufactured by or for silicom.

MA-L · OUI prefix

silicom

Any MAC address starting 90:EC:77 is registered to silicom in IL.

OUI prefix	90EC77
Vendor	silicom
Registry	MA-L (24-bit, large block)
Country	IL
Example MAC	90:EC:77:00:00:00

What this means

The IEEE assigned the MA-L block 90EC77 to silicom. 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 90:EC:77, it is silicom hardware.

Other silicom prefixes

silicom holds 2 registered blocks in total.

70B3D5F64

Look up another MAC