What this means
The IEEE assigned the MA-L block 001BF1 to Nanjing SilverNet Software 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 00:1B:F1, it is Nanjing SilverNet Software Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001BF1?
001BF1 is registered to Nanjing SilverNet Software 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. Nanjing SilverNet Software Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 001BF1?
Any network device with a MAC address starting 00:1B:F1 was manufactured by or for Nanjing SilverNet Software Co., Ltd..