Who owns MAC prefix 1878D4?

1878D4 is registered to Verizon in the IEEE MA-L registry.

What devices use 1878D4?

Any network device with a MAC address starting 18:78:D4 was manufactured by or for Verizon.

MA-L · OUI prefix

Verizon

Any MAC address starting 18:78:D4 is registered to Verizon in US.

OUI prefix	1878D4
Vendor	Verizon
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	18:78:D4:00:00:00

What this means

The IEEE assigned the MA-L block 1878D4 to Verizon. 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 18:78:D4, it is Verizon hardware.

Other Verizon prefixes

Verizon holds 3 registered blocks in total.

20C047 485D36

Look up another MAC