Who owns MAC prefix 4C8120?

4C8120 is registered to Taicang T&W Electronics in the IEEE MA-L registry.

What devices use 4C8120?

Any network device with a MAC address starting 4C:81:20 was manufactured by or for Taicang T&W Electronics.

MA-L · OUI prefix

Taicang T&W Electronics

Any MAC address starting 4C:81:20 is registered to Taicang T&W Electronics in CN.

OUI prefix	4C8120
Vendor	Taicang T&W Electronics
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	4C:81:20:00:00:00

What this means

The IEEE assigned the MA-L block 4C8120 to Taicang T&W Electronics. 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 4C:81:20, it is Taicang T&W Electronics hardware.

Other Taicang T&W Electronics prefixes

Taicang T&W Electronics holds 46 registered blocks in total.

0425E0 0475F9 145808 184593 1845B3D 240B88 2CDD95 38E3C5 403306 4C0617 501B32 5088C7 all 46 »

Look up another MAC