What this means
The IEEE assigned the MA-L block F891F5 to Dingtian Technologies 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 F8:91:F5, it is Dingtian Technologies Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix F891F5?
F891F5 is registered to Dingtian Technologies 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. Dingtian Technologies Co., Ltd's block covers 16,777,216 addresses.
What devices use F891F5?
Any network device with a MAC address starting F8:91:F5 was manufactured by or for Dingtian Technologies Co., Ltd.