Who owns MAC prefix 0004D1?

0004D1 is registered to Drew Technologies, Inc. in the IEEE MA-L registry.

What devices use 0004D1?

Any network device with a MAC address starting 00:04:D1 was manufactured by or for Drew Technologies, Inc..

MA-L · OUI prefix

Drew Technologies, Inc.

Any MAC address starting 00:04:D1 is registered to Drew Technologies, Inc. in US.

OUI prefix	0004D1
Vendor	Drew Technologies, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:04:D1:00:00:00

What this means

The IEEE assigned the MA-L block 0004D1 to Drew Technologies, 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 00:04:D1, it is Drew Technologies, Inc. hardware.

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