What this means
The IEEE assigned the MA-L block 0023B1 to Longcheer Technology (Singapore) Pte 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 00:23:B1, it is Longcheer Technology (Singapore) Pte Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 0023B1?
0023B1 is registered to Longcheer Technology (Singapore) Pte 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. Longcheer Technology (Singapore) Pte Ltd's block covers 16,777,216 addresses.
What devices use 0023B1?
Any network device with a MAC address starting 00:23:B1 was manufactured by or for Longcheer Technology (Singapore) Pte Ltd.