What this means
The IEEE assigned the MA-L block 4487DB to Tymphany Acoustic Technology (Huizhou) 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 44:87:DB, it is Tymphany Acoustic Technology (Huizhou) Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 4487DB?
4487DB is registered to Tymphany Acoustic Technology (Huizhou) 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. Tymphany Acoustic Technology (Huizhou) Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 4487DB?
Any network device with a MAC address starting 44:87:DB was manufactured by or for Tymphany Acoustic Technology (Huizhou) Co., Ltd..