What this means
The IEEE assigned the MA-L block 00189C to Weldex Corporation. 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 00:18:9C, it is Weldex Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 00189C?
00189C is registered to Weldex Corporation in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Weldex Corporation's block covers 16,777,216 addresses.
What devices use 00189C?
Any network device with a MAC address starting 00:18:9C was manufactured by or for Weldex Corporation.