What devices use 5C5DEC?

Any network device with a MAC address starting 5C:5D:EC was manufactured by or for JiangSu Newcom Optical&Electrical Communication CO Ltd.

MA-L · OUI prefix

JiangSu Newcom Optical&Electrical Communication CO Ltd

Q: Who owns MAC prefix 5C5DEC?

5C5DEC is registered to JiangSu Newcom Optical&Electrical Communication CO Ltd in the IEEE MA-L registry.

Any MAC address starting 5C:5D:EC is registered to JiangSu Newcom Optical&Electrical Communication CO Ltd in CN.

OUI prefix	5C5DEC
Vendor	JiangSu Newcom Optical&Electrical Communication CO Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	5C:5D:EC:00:00:00

What this means

The IEEE assigned the MA-L block 5C5DEC to JiangSu Newcom Optical&Electrical Communication 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 5C:5D:EC, it is JiangSu Newcom Optical&Electrical Communication CO Ltd hardware.

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