Who owns MAC prefix 00901D?

00901D is registered to Gallagher Group Limited in the IEEE MA-L registry.

What devices use 00901D?

Any network device with a MAC address starting 00:90:1D was manufactured by or for Gallagher Group Limited.

MA-L · OUI prefix

Gallagher Group Limited

Any MAC address starting 00:90:1D is registered to Gallagher Group Limited in NZ.

OUI prefix	00901D
Vendor	Gallagher Group Limited
Registry	MA-L (24-bit, large block)
Country	NZ
Example MAC	00:90:1D:00:00:00

What this means

The IEEE assigned the MA-L block 00901D to Gallagher Group Limited. 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 00:90:1D, it is Gallagher Group Limited hardware.

Other Gallagher Group Limited prefixes

Gallagher Group Limited holds 2 registered blocks in total.

C06BC7

Look up another MAC