What this means
The IEEE assigned the MA-L block 000A81 to TEIMA Audiotex 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 00:0A:81, it is TEIMA Audiotex S.L. hardware.
Frequently Asked Questions
Who owns MAC prefix 000A81?
000A81 is registered to TEIMA Audiotex 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. TEIMA Audiotex S.L.'s block covers 16,777,216 addresses.
What devices use 000A81?
Any network device with a MAC address starting 00:0A:81 was manufactured by or for TEIMA Audiotex S.L..