Who owns MAC prefix 001D5C?

001D5C is registered to Tom Communication Industrial Co.,Ltd. in the IEEE MA-L registry.

What devices use 001D5C?

Any network device with a MAC address starting 00:1D:5C was manufactured by or for Tom Communication Industrial Co.,Ltd..

MA-L · OUI prefix

Tom Communication Industrial Co.,Ltd.

Any MAC address starting 00:1D:5C is registered to Tom Communication Industrial Co.,Ltd. in JP.

OUI prefix	001D5C
Vendor	Tom Communication Industrial Co.,Ltd.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:1D:5C:00:00:00

What this means

The IEEE assigned the MA-L block 001D5C to Tom Communication Industrial 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 00:1D:5C, it is Tom Communication Industrial Co.,Ltd. hardware.

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