Who owns MAC prefix 7CE4A1B?

7CE4A1B is registered to Cummins Inc in the IEEE MA-M registry.

What devices use 7CE4A1B?

Any network device with a MAC address starting 7C:E4:A1:B was manufactured by or for Cummins Inc.

MA-M · OUI prefix

Cummins Inc

Any MAC address starting 7C:E4:A1:B is registered to Cummins Inc in US.

OUI prefix	7CE4A1B
Vendor	Cummins Inc
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	7C:E4:A1:B:00:00:00

What this means

The IEEE assigned the MA-M block 7CE4A1B to Cummins 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 7C:E4:A1:B, it is Cummins Inc hardware.

Other Cummins Inc prefixes

Cummins Inc holds 2 registered blocks in total.

001CE8

Look up another MAC