Who owns MAC prefix 4000E0?

4000E0 is registered to Derek(Shaoguan)Limited in the IEEE MA-L registry.

What devices use 4000E0?

Any network device with a MAC address starting 40:00:E0 was manufactured by or for Derek(Shaoguan)Limited.

MA-L · OUI prefix

Derek(Shaoguan)Limited

Any MAC address starting 40:00:E0 is registered to Derek(Shaoguan)Limited in CN.

OUI prefix	4000E0
Vendor	Derek(Shaoguan)Limited
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	40:00:E0:00:00:00

What this means

The IEEE assigned the MA-L block 4000E0 to Derek(Shaoguan)Limited. 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 40:00:E0, it is Derek(Shaoguan)Limited hardware.

Other Derek(Shaoguan)Limited prefixes

Derek(Shaoguan)Limited holds 2 registered blocks in total.

B8B3DC

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