What this means
The IEEE assigned the MA-L block 38127B to Crenet Labs 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 38:12:7B, it is Crenet Labs Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 38127B?
38127B is registered to Crenet Labs 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. Crenet Labs Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 38127B?
Any network device with a MAC address starting 38:12:7B was manufactured by or for Crenet Labs Co., Ltd..