What this means
The IEEE assigned the MA-L block 44B423 to HANWHA VISION VIETNAM COMPANY LIMITED. 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 44:B4:23, it is HANWHA VISION VIETNAM COMPANY LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 44B423?
44B423 is registered to HANWHA VISION VIETNAM COMPANY LIMITED 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. HANWHA VISION VIETNAM COMPANY LIMITED's block covers 16,777,216 addresses.
What devices use 44B423?
Any network device with a MAC address starting 44:B4:23 was manufactured by or for HANWHA VISION VIETNAM COMPANY LIMITED.