Who owns MAC prefix F03F03?

F03F03 is registered to Private in the IEEE MA-L registry.

What devices use F03F03?

Any network device with a MAC address starting F0:3F:03 was manufactured by or for Private.

MA-L · OUI prefix

Private

Any MAC address starting F0:3F:03 is registered to Private.

OUI prefix	F03F03
Vendor	Private
Registry	MA-L (24-bit, large block)
Example MAC	F0:3F:03:00:00:00

What this means

The IEEE assigned the MA-L block F03F03 to Private. 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 F0:3F:03, it is Private hardware.

Other Private prefixes

Private holds 213 registered blocks in total.

000B18 000BF4 000C53 000D58 000DA7 000DC2 000DF2 000E17 000E22 000101 000578 000EEF all 213 »

Look up another MAC