What this means
The IEEE assigned the MA-M block 18C3F4B to VECTOR TECHNOLOGIES, 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 18:C3:F4:B, it is VECTOR TECHNOLOGIES, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 18C3F4B?
18C3F4B is registered to VECTOR TECHNOLOGIES, 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. VECTOR TECHNOLOGIES, LLC's block covers 1,048,576 addresses.
What devices use 18C3F4B?
Any network device with a MAC address starting 18:C3:F4:B was manufactured by or for VECTOR TECHNOLOGIES, LLC.