What this means
The IEEE assigned the MA-L block 481BD2 to Intron Scientific co., 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 48:1B:D2, it is Intron Scientific co., ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 481BD2?
481BD2 is registered to Intron Scientific co., 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. Intron Scientific co., ltd.'s block covers 16,777,216 addresses.
What devices use 481BD2?
Any network device with a MAC address starting 48:1B:D2 was manufactured by or for Intron Scientific co., ltd..