Gamber-Johnson LLC - MAC Prefix 68DA73B (MA-M)

What this means

The IEEE assigned the MA-M block 68DA73B to Gamber-Johnson LLC. 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 68:DA:73:B, it is Gamber-Johnson LLC hardware.

Frequently Asked Questions

Who owns MAC prefix 68DA73B?

68DA73B is registered to Gamber-Johnson LLC in the IEEE MA-M registry.

What does the MA-M registry type mean?

An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Gamber-Johnson LLC's block covers 1,048,576 addresses.

What devices use 68DA73B?

Any network device with a MAC address starting 68:DA:73:B was manufactured by or for Gamber-Johnson LLC.

Other Gamber-Johnson LLC prefixes

Gamber-Johnson LLC holds 7 registered blocks in total.

OUI prefix	68DA73B
Vendor	Gamber-Johnson LLC
Registry	MA-M (28-bit, medium block)
Block size	1,048,576 addresses
Country	US
Other blocks by this vendor	7 total
Example MAC	68:DA:73:B:00:00:00