Who owns MAC prefix 00133B?

00133B is registered to Speed Dragon Multimedia Limited in the IEEE MA-L registry.

What devices use 00133B?

Any network device with a MAC address starting 00:13:3B was manufactured by or for Speed Dragon Multimedia Limited.

MA-L · OUI prefix

Speed Dragon Multimedia Limited

Any MAC address starting 00:13:3B is registered to Speed Dragon Multimedia Limited in HK.

OUI prefix	00133B
Vendor	Speed Dragon Multimedia Limited
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	00:13:3B:00:00:00

What this means

The IEEE assigned the MA-L block 00133B to Speed Dragon Multimedia 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 00:13:3B, it is Speed Dragon Multimedia Limited hardware.

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