Who owns MAC prefix 001D4B?

001D4B is registered to Grid Connect Inc. in the IEEE MA-L registry.

What devices use 001D4B?

Any network device with a MAC address starting 00:1D:4B was manufactured by or for Grid Connect Inc..

MA-L · OUI prefix

Grid Connect Inc.

Any MAC address starting 00:1D:4B is registered to Grid Connect Inc. in US.

OUI prefix	001D4B
Vendor	Grid Connect Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:1D:4B:00:00:00

What this means

The IEEE assigned the MA-L block 001D4B to Grid Connect Inc.. 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:4B, it is Grid Connect Inc. hardware.

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