Who owns MAC prefix 401B5F?

401B5F is registered to WEIFANG GOERTEK ELECTRONICS CO.,LTD in the IEEE MA-L registry.

What devices use 401B5F?

Any network device with a MAC address starting 40:1B:5F was manufactured by or for WEIFANG GOERTEK ELECTRONICS CO.,LTD.

MA-L · OUI prefix

WEIFANG GOERTEK ELECTRONICS CO.,LTD

Any MAC address starting 40:1B:5F is registered to WEIFANG GOERTEK ELECTRONICS CO.,LTD in CN.

OUI prefix	401B5F
Vendor	WEIFANG GOERTEK ELECTRONICS CO.,LTD
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	40:1B:5F:00:00:00

What this means

The IEEE assigned the MA-L block 401B5F to WEIFANG GOERTEK ELECTRONICS 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 40:1B:5F, it is WEIFANG GOERTEK ELECTRONICS CO.,LTD hardware.

Other WEIFANG GOERTEK ELECTRONICS CO.,LTD prefixes

WEIFANG GOERTEK ELECTRONICS CO.,LTD holds 20 registered blocks in total.

101849 1C965A 24A6FA 2C4D79 48188D 4CB99B 841766 88034C 90895F 90B685 A0AB51 A0FA9C all 20 »

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