What this means
The IEEE assigned the MA-L block 000189 to Refraction Technology, Inc.. 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 00:01:89, it is Refraction Technology, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 000189?
000189 is registered to Refraction Technology, Inc. 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. Refraction Technology, Inc.'s block covers 16,777,216 addresses.
What devices use 000189?
Any network device with a MAC address starting 00:01:89 was manufactured by or for Refraction Technology, Inc..