What this means
The IEEE assigned the MA-L block 001B9A to Apollo Fire Detectors Ltd. 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 00:1B:9A, it is Apollo Fire Detectors Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 001B9A?
001B9A is registered to Apollo Fire Detectors Ltd 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. Apollo Fire Detectors Ltd's block covers 16,777,216 addresses.
What devices use 001B9A?
Any network device with a MAC address starting 00:1B:9A was manufactured by or for Apollo Fire Detectors Ltd.