Who owns MAC prefix C423A2?

C423A2 is registered to PT. Emsonic Indonesia in the IEEE MA-L registry.

What devices use C423A2?

Any network device with a MAC address starting C4:23:A2 was manufactured by or for PT. Emsonic Indonesia.

MA-L · OUI prefix

PT. Emsonic Indonesia

Any MAC address starting C4:23:A2 is registered to PT. Emsonic Indonesia in ID.

OUI prefix	C423A2
Vendor	PT. Emsonic Indonesia
Registry	MA-L (24-bit, large block)
Country	ID
Example MAC	C4:23:A2:00:00:00

What this means

The IEEE assigned the MA-L block C423A2 to PT. Emsonic Indonesia. 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 C4:23:A2, it is PT. Emsonic Indonesia hardware.

Other PT. Emsonic Indonesia prefixes

PT. Emsonic Indonesia holds 2 registered blocks in total.

70B3D5360

Look up another MAC