Who owns MAC prefix 241B13?

241B13 is registered to Shanghai Nutshell Electronic Co., Ltd. in the IEEE MA-L registry.

What devices use 241B13?

Any network device with a MAC address starting 24:1B:13 was manufactured by or for Shanghai Nutshell Electronic Co., Ltd..

MA-L · OUI prefix

Shanghai Nutshell Electronic Co., Ltd.

Any MAC address starting 24:1B:13 is registered to Shanghai Nutshell Electronic Co., Ltd. in CN.

OUI prefix	241B13
Vendor	Shanghai Nutshell Electronic Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	24:1B:13:00:00:00

What this means

The IEEE assigned the MA-L block 241B13 to Shanghai Nutshell Electronic Co., Ltd.. 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 24:1B:13, it is Shanghai Nutshell Electronic Co., Ltd. hardware.

Look up another MAC