Who owns MAC prefix 001983?

001983 is registered to CCT R&D Limited in the IEEE MA-L registry.

What devices use 001983?

Any network device with a MAC address starting 00:19:83 was manufactured by or for CCT R&D Limited.

MA-L · OUI prefix

CCT R&D Limited

Any MAC address starting 00:19:83 is registered to CCT R&D Limited in HK.

OUI prefix	001983
Vendor	CCT R&D Limited
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	00:19:83:00:00:00

What this means

The IEEE assigned the MA-L block 001983 to CCT R&D 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 00:19:83, it is CCT R&D Limited hardware.

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