Who owns MAC prefix 8C1F644DA?

8C1F644DA is registered to DTDS Technology Pte Ltd in the IEEE MA-S registry.

What devices use 8C1F644DA?

Any network device with a MAC address starting 8C:1F:64:4D:A was manufactured by or for DTDS Technology Pte Ltd.

MA-S · OUI prefix

DTDS Technology Pte Ltd

Any MAC address starting 8C:1F:64:4D:A is registered to DTDS Technology Pte Ltd in SG.

OUI prefix	8C1F644DA
Vendor	DTDS Technology Pte Ltd
Registry	MA-S (36-bit, small block)
Country	SG
Example MAC	8C:1F:64:4D:A:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F644DA to DTDS Technology Pte 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 8C:1F:64:4D:A, it is DTDS Technology Pte Ltd hardware.

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