What this means
The IEEE assigned the MA-L block 18A958 to PROVISION THAI 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 18:A9:58, it is PROVISION THAI CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 18A958?
18A958 is registered to PROVISION THAI 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. PROVISION THAI CO., LTD.'s block covers 16,777,216 addresses.
What devices use 18A958?
Any network device with a MAC address starting 18:A9:58 was manufactured by or for PROVISION THAI CO., LTD..