Who owns MAC prefix F40E115?

F40E115 is registered to E-SONG in the IEEE MA-M registry.

What devices use F40E115?

Any network device with a MAC address starting F4:0E:11:5 was manufactured by or for E-SONG.

MA-M · OUI prefix

E-SONG

Any MAC address starting F4:0E:11:5 is registered to E-SONG in KR.

OUI prefix	F40E115
Vendor	E-SONG
Registry	MA-M (28-bit, medium block)
Country	KR
Example MAC	F4:0E:11:5:00:00:00

What this means

The IEEE assigned the MA-M block F40E115 to E-SONG. 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 F4:0E:11:5, it is E-SONG hardware.

Look up another MAC