Who owns MAC prefix 44F849?

44F849 is registered to Union Pacific Railroad in the IEEE MA-L registry.

What devices use 44F849?

Any network device with a MAC address starting 44:F8:49 was manufactured by or for Union Pacific Railroad.

MA-L · OUI prefix

Union Pacific Railroad

Any MAC address starting 44:F8:49 is registered to Union Pacific Railroad in US.

OUI prefix	44F849
Vendor	Union Pacific Railroad
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	44:F8:49:00:00:00

What this means

The IEEE assigned the MA-L block 44F849 to Union Pacific Railroad. 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 44:F8:49, it is Union Pacific Railroad hardware.

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