What this means
The IEEE assigned the MA-L block 001BF5 to Tellink Sistemas de Telecomunicación S.L.. 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:F5, it is Tellink Sistemas de Telecomunicación S.L. hardware.
Frequently Asked Questions
Who owns MAC prefix 001BF5?
001BF5 is registered to Tellink Sistemas de Telecomunicación S.L. 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. Tellink Sistemas de Telecomunicación S.L.'s block covers 16,777,216 addresses.
What devices use 001BF5?
Any network device with a MAC address starting 00:1B:F5 was manufactured by or for Tellink Sistemas de Telecomunicación S.L..